Jet Stream Snapshot

Australian Jet StreamFind out what the Jet Stream is Doing.

If you are launching a High Altitude Balloon (HAB), it will be in the Jet Stream for a significant time during its flight. You had better know what the jet stream is doing. Predictions are good, but reality is the key. I have found a site that is perfect for this and the method of display is excellent.

Thanks to HAB enthusiast, Andy from Melbourne, for the link. In fact he launched a pico balloon flight (uses a foil balloon) that never got higher than 7,000m because he saw that the jet stream was running north from Melbourne. Before its transmitter battery failed or it ran out of range of the last tracking station it was nearing Bourke in NSW. Not bad for a foil balloon. That is nearly 1,000 kms. Below is a link to the Australian map for the jet stream.

The website is:

Below is the track of Andy’s Pico Balloon flight. There is a small chance that the battery is not flat and it may get picked up by a remote APRS station – HAM radio tracking station. If it gets seen again, we will let you know.

Andy Pico flight 20140217

You can clearly see from the Jet Stream map, that the flight was easily predicted visually.

Other countries will also have their Jet Stream maps – maybe on aviation websites. Search and you may be rewarded with a real tool. You will find many here:




Central America:

Southern America:


HAB Data From a Recent Flight

DCIM100GOPROHAB Data from 37km Flight

Recently I published a story on a High Altitude Balloon (HAB) flight I help with for my friend Andy from Melbourne. I was asked about the data collected.

The flight data was only stored from transmissions from the Payloads on the balloon. The payload did not carry a recording device for such data. There were two sets of data returned. RTTY on UHF frequencies and HAM radio APRS. APRS relies, like RTTY, on a number of stations picking up the transmissions and sending the resulting data to the network for storage and display (maps) on a server via the Internet.

Simply this post is to display the data collected and help decode the data. I have not cleaned up the results. They are simply in Text and Word (Docx) format.

Andy Flight 20140208 Text File

Sorry about the formatting in the above file. I will try and fix that shortly, but it does not matter. The formatting is only in the legend for the data.

Andy Flight 20140208  Word File (docx)

This from the data file:

This is the breakdown of the raw HAM Radio APRS data strings. I have chosen the first line of APRS data as an example:

Server Date                             2014-02-08

Server Time                             00:43:06 UTC

Call-sign of the balloon:          VK3YT-11>APRS,WIDE1-1,WIDE2-1,qAR,VK3YT-7    (including the APRS data and call sign of the relay station if applicable)

Beacon TX time                       004300h (time of transmission from the payload)

Latitude and Longitude           3532.44S/14456.90E

Course                                    O052/    Note “O” + course in degrees “052”

Speed                                      000/   knots

Altitude                                     A=000314   feet above sea level

Packet number                        143  – starts at “1” with the first packet of data and increases with each packet.

After this point, the data strings are determined by the user / builder of the tracking unit and spaced by commas. This unit is configured with the following:

Number of satellites                   9

GPS lock (3D)                            3

Navigation Mode                        6     Will work over 60,000 feet

Not used                                    0.0,0.0,

Volts (mV) of Battery                  3296   Note, the battery voltage falls over time and with temperature. The voltage increases as the battery warms before landing

The first few APRS packets of data transmitted every 36 seconds by the tracker:

2014-02-08 00:43:06 UTC: VK3YT-11>APRS,WIDE1-1,WIDE2-1,qAR,VK3YT-7:/004300h3532.44S/14456.90EO052/000/A=000314,143,9,3,6,0.0,0.0,3296
2014-02-08 00:43:42 UTC: VK3YT-11>APRS,WIDE1-1,WIDE2-1,qAR,VK3YT-7:/004336h3532.44S/14456.90EO052/000/A=000318,144,10,3,6,0.0,0.0,3296
2014-02-08 00:44:18 UTC: VK3YT-11>APRS,WIDE1-1,WIDE2-1,qAR,VK3YT-7:/004412h3532.44S/14456.90EO052/000/A=000318,145,9,3,6,0.0,0.0,3296
2014-02-08 00:44:54 UTC: VK3YT-11>APRS,WIDE1-1,WIDE2-1,qAR,VK3YT-7:/004448h3532.44S/14456.90EO052/000/A=000318,146,9,3,6,0.0,0.0,3296
2014-02-08 00:45:30 UTC: VK3YT-11>APRS,WIDE1-1,WIDE2-1,qAR,VK3YT-7:/004524h3532.44S/14456.90EO052/000/A=000318,147,9,3,6,0.0,0.0,3296  (launch)


Balloon flight Payload Recovered

High Altitude Balloon Success. Payload Recovered.Andy PS1 Preparing to fly

Jason and I went to Deniliquin NSW (Australia) to help a good friend, Andy from Melbourne, launch and recover a high altitude balloon / payload. I am part of Team Stellar going for the Google Lunar X-Prize (GLXP). I am in charge of Communications, Tracking and Data. Jason (11) is their Australian Student Representative. Jason and I have launched and recovered 16 payloads to date and assisted with others and we love High Altitude Balloons (HABs).

I brought my fellow Team Stellar member, Tim Blaxland and his son Rhys (9) along for the experience. Tim is Stellar’s chief of Navigation. The launch was at Deniliquin and we traveled part of the way there on Friday and the rest early on Saturday morning to be there for a 9:30 start. It was an 8 hour drive and we intended to do another 8 hours back later on Saturday after we recovered the payload.

Fellow HAB enthusiast Todd Hampson also traveled from Sydney in his own vehicle. it was great that we all arrived at the designated point in a timely fashion and started the final preparations for launch. Other than Tim and Reece, we all have Amateur Radio licenses and on this flight we would have 2m APRS tracking system. See earlier posts about APRS. In addition there was also RTTY on UHF. The RTTY system s available for non amateur radio hobbyists to use.

Andy had a video camera camera hooked up to a Raspberry Pi unit. Its job was to break up the video into smaller packets of data and send it along with the RTTY GPS information. The pictures are then sent to a server on the internet and the packets reassembled into a complete picture if all of the packets are received. The transmitter is very low powered and many people set up their equipment to help receive and download the images. Below is an image from the flight. The grey strips are missing packets that no one managed to receive successfully.

Note that at this time of the year, the wheat and other crops  have been harvested and the temperatures are in the 40C range at times. With little rain, the fields are a brown cover. The dark areas are either farms with crops still growing or trees around the rivers that flow through the region.

Andy PS1 flight Deniliquin NSW
















The photo is only from a low resolution camera but the payload also carried a GoPro that took photos. The top image is a small section from the flight camera while it was on the ground.

Here are the details that Andy distributed before the flight:

FYI, there will be a HAB launch from Deniliquin NSW this weekend, Sat 8th Feb 2014 at 11am EST.

 Payloads will be:
– SSDV RTTY 300baud, 450Hz shift, 8N1, 434.650Mhz (+- drift) USB, 25mW quarter-wave antenna
– APRS 1200b 145.175Mhz 100mW with dipole antenna
– Cutdown RTTY 100baud, 450Hz shift, 8N1, 432.220Mhz (+- drift) USB, 25mW downlink, quarter-wave antenna.
RTTY tracking will be on, callsigns PS and PSPI
SSDV images will be uploaded to, callsign PSPI
APRS tracking will be on, callsign VK3YT-11

The temperature was 42C / 108F for much of the day and UV protection was essential. Recovery was easy, so we did not have an issue with tracking through the forests looking for the payload.

The flight lasted around 2hrs 50mins, reached max altitude of 36,789m / 120,699ft / 22.9 miles  before the balloon burst and landed in a paddock.

The following images were transmitted whilst in flight:

2014-02-08--01-11-07-PSPI-8C9 2014-02-08--01-43-42-PSPI-8CB2014-02-08--02-04-48-PSPI-8CC





























































The last image was taken close to maximum altitude.

GoPro3 images in the next post. Below, the flight path from left to right. The tropospheric winds (Jet Stream) where pushing the balloon to the eastand the stratospheric winds blew us west . When the balloon burst, the winds eventually took us east again as we passed through the Jetstream.

The Flight PS1 Map The Flight PS1 terrain


Live images from Balloon Flight

Balloon FligAndy Flight still images from balloonI-896ht Scheduled Jan 8th 2014

My friend Andy from Melbourne, Australia is launching a balloon tomorrow. It is expected that the balloon will be sending back live images from over 30km altitude. We will be launching from the NSW country town of Deniliquin at 10am EDST. That is 2300Z Jan 7th.

I will be there with Jason assisting as will a few other of the regulars.

Andy Writes:

Hi Robert,

 Here are some info for the launch:

– Payloads will include SSDV, APRS, RTTY and cutdown

– balloon tracking positions will be uploaded to

– SSDV images will be uploaded to

– Expected altitude is more than 33km

You can track the Balloon on APRS on  – I will send the callsign later as a comment on this page

Jason and i will be leaving about 1 hour after I post this story. You can track us on the APRS service with the callsign of  VK2URB-7 as we travel to Deniliquin. We will probably stop on the way at a motel!

Jason Delivers 18 Lectures in 3 Days

UpLift-16 AlburyScience Week at Albury, Australia 2013

I was delighted when the organisers of the Border Stargaze and Science Fair invited Jason and myself to deliver 18 x 30 minute talks over three days to both public school students and high school students. I threw Jason in the Deep end and told him, it was his job to deliver the talks. We were also asked to fly a small balloon with just a tracking payload. It was designated sequentially in our UpLift series as UpLift-16. We were not planning on recovering the tracker, but with our record of recovery, it seems that we were destined to even get this one returned to us. That was mentioned in an earlier post. See: Australians Applying to CASA for a HAB Flight More on that later.

Here is a bit about the event:

Border Stargaze and Science Fair

The event is open to all ages, the wider community, schools and amateur astronomers. The Border Stargaze has grown over the past 7 years and with it the annual Science Fair. It is event such as these that have inspired individuals, groups, schools, the community and universities in our region.

When: Monday, August 12 2013 till Sunday, September 8 2013. 9:00 AM to 12:00 PM
Where: Albury, NSW, 2640
What: Festival, Hands-on activity, Talk / Lecture
Theme: Energy and transport, Environment and nature, Health and medical, Space and astronomy, Innovation and technology
We drove down from Sydney – a solid 6 hour drive and of course we had to drive back after the event. They had offered to fly us there, but the amount of gear we needed even for the simplest balloon flight and props for the lectures was too much to fly to Albury. Jason Delivered 18 Lectures in 3 Days.
We left after School on Monday afternoon and got to Albury late Monday ready for the lectures the next morning. It was a great event and after a few talks with me assisting, Jason (11)  found his stride and he was delivering the talks like he had been doing them all his life. The subject was launching and recovering stratospheric balloons. We passed around the tools of the trade we use to get a high altitude balloon into the stratosphere. Balloons, parachutes, even the thin cord used to suspend the payload from the balloon and of course the GPS tracker.
On Thursday morning we got up before dawn on a very cold winters morning and headed out to the designated launch site. Although it was the required 5km from the airport we had to liaise with Albury airport because we were in the landing circuit. We had to release our balloon between landings. We were able to give the airport our tracking web page and they were able to monitor our balloons flight, ensuring adequate safety for those in the air. We successfully launched our small balloon and tracker – no parachute as it would fall slowly with its super-light weight bubble wrap cover. We only used the bubble wrap to insulate from the extreme cold of the jet stream. The winds would take the payload to the east and over inaccessible land. We did not expect to see the tracker again, but we did thanks to the host of Canberra Fuzzy Logic Science Show, Rod Taylor. We still have a 100% recovery record after 16 balloon flights. Rod’s trip to recover the payload will be in another post.

Jason and I have HAM radio licenses and we use a HAM radio compliant tracker for these flights. We are amateur radio operators, (nick named HAMs). Jason got his foundation license at age 9 because he wanted to help with the radio systems that we use to communicate. His license is not high enough to use the APRS (digital) systems, but I have a “full” license that allows me to use the systems. My call-sign is VK2URB and Jason’s is VK2FJAB. You can look up your local club on the Wireless Institute or Australia’s website and select “Radio Clubs” on their menu.

. Contact you local club for more information..
UpLift-16 Albury - before sunrise - it was cold
UpLift-16 Albury – before sunrise – it was cold
UpLift-16 Albury - Preparations
UpLift-16 Albury – Preparations
UpLift-16 Albury – Preparations
 UpLift-16 Albury - Preparation of the HAM Radio APRS Tracker
UpLift-16 Albury – Preparation of the HAM Radio APRS Tracker
UpLift-16 Albury - Preparation of the HAM Radio APRS Tracker
UpLift-16 Albury – Preparation of the HAM Radio APRS Tracker
Jason in Class with the balloon being tracked across country
Jason in class delivering a lecture with the balloon being tracked across country.
  UpLift-16 Flight 01
UpLift-16 Flight over the lakes near Albury – Lake Hume on the right.
UpLift-16 passing overt the old Honeysuckle Creek Dish Site.
 UpLift-16 passing overt the old Honeysuckle Creek Dish Site.
Note the harsh mountain forests and difficult terrain.
Honeysuckle Creek Tracking Station brought the world
Neil Armstrong’s first steps on the moon  – Apollo 11


UpLift-16 breaks our personal best altitude record.
UpLift-16 breaks our personal best altitude record.
Jason Brand and Dr Barry Jones - past Science MinisterThe flight made it to well over 30km altitude and set down in a field near the Monaro Highway as the small village of Michelago. It was too easy to recover after avoiding so many impossible places. The classes that watched the tracking in class cheered every time we set a new record. Jason was also given the privilege of representing his school in Sydney and wore his school uniform – Leichhardt Public School (Y6)
Jason with Dr Barry Jones – Past Minister for Science and quiz show contestant extraordinaire. Now in his eighties, he is still a huge supporter of science and was a key note speaker at the Albury National Science Week event where Jason was a guess presenter. Jason was excited when Dr Jones mentioned that he had heard of Jason’s balloon flight that landed south of Canberra in the ACT. He said that it was lucky to land south as all the hot air would have kept it from landing in Canberra (full of politicians). — at Charles Sturt University.
Our return drive to Sydney on Thursday night was uneventful and Jason was back at school the next day. He did have to give the same talk to his Y6 students at his school.

UpLift-1 in the Sydney Morning Herald (Archives)

Sydney’s very own space agency: Brand and son

*** Recovered from the Archives ***

This excerpt from the Sydney Morning Herald, January 16, 2012. UpLift-1 in the Sydney Morning Herald

Sydney’s Space Agency

Sydney space enthusiast Robert Brand, with the help of local school students has built and launched a weather balloon a quarter of the way to space.

Sydney space enthusiast Robert Brand and his 9-year-old son Jason recently launched a high-tech weather balloon a quarter of the way to space, retrieving images and flight data to help school children get a better understanding about space.

Mr Brand, of Dulwich Hill, has a history with space – at age 17 he wired up some of the Apollo 11 communications gear in Sydney during his term break from college. He was also stationed at the CSIRO Parkes Observatory in New South Wales at the request of the European Space Agency for spacecraft Giotto’s encounter with Halley’s comet in 1986 and Voyager’s encounter with Uranus and Neptune in 1986 and ’89. Also under his belt is an award from NASA for support of STS-1, the first orbital flight of the Space Shuttle program, presented personally by the commander and moon walker John Young.

So when it came time for Mr Brand to launch his own gear towards space he was well prepared, documenting his do-it-yourself journey on his personal blog for other space enthusiasts to watch and track.

Jason and his father Robert celebrate retrieving their weather balloon, which captured data and images on a mission a quarter of the way to space.

Jason and his father Robert celebrate with ginger beer (soda/soft drink) after retrieving their weather balloon, which captured data and images on a mission a quarter of the way to space. Photo: Supplied

“[The balloon launch] was being done to help science education in the Sydney area and anywhere else in fact because we were publishing [on the internet] all of the information and data that we got from the balloon launch,” said Mr Brand, 59.

Launch day was December 28, 2011 from Rankins Springs near Goolgowi in Central NSW. As the balloon got up to about 85,000 feet (25.9 kilometres) above Earth before it burst, Mr Brand and his son tracked it using amateur radio.

“During the flight we were actually relaying data back to the ground and off to a server and that allowed people from all over the world to actually participate with this flight and track it as it was going,” Mr Brand said. “We were getting back a lot of comments on some of the social media [services] such as Facebook just really helping us understand what they were sort of getting out of the whole project. People were sort of yelling loudly if you could put it that way, on the [wotzup] website claiming ‘Hey, they’ve reached this height and that height’, and so there was a lot of really great audience participation in this.”

Robert and his son pump the weather balloon with helium before launch.

Robert and his son pump the weather balloon with helium before launch. Photo: Supplied

The data being sent back from the balloon – which was later recovered about 50 kilometres away from where it was launched – tracked altitude, position, rate of climb, payload temperature, payload voltage and air pressure, Mr Brand said. The balloon also has a camera on board that captured still images. “We could actually see as [the balloon] hit different wind levels in the atmosphere and eventually we got up into a jet stream and actually found that we had two jet streams,” Mr Brand added.

When the balloon finally popped it came hurtling back towards Earth at about 40 metres per second, according to flight data.

“So this thing was falling a bit like a brick would fall at ground level but it slowed down and eventually the parachute dropped it on the ground at about six metres per second,” Mr Brand said.

The view from 10,666 metres, the height at which commerical jets will normally fly at.

Photos from Robert and Jason Brand’s weather balloon flight

The view from 10,666 metres, the height at which commercial jets will normally fly at. Photo: Robert and Jason Brand

  • The view from 10,666 metres, the height at which commerical jets will normally fly at.
  • The view from 21,977 metres.
  • The view from 22,222 metres.
  • The view from 22,470 metres.
  • The view from 22,969 metres.
  • The view from 24,305 metres.
  • The view from 26181 metres.
  • The view from 300 metres.
  • The view from 3235 metres
  • The view from 4153 metres.

The balloon (payload) was put together with the help of senior students at Sydney Secondary College at Blackwattle Bay, who Brand sought to get involved with the project and tasked them with doing a whole stack of materials testing. They tested the Styrofoam and how it reacted in zero atmosphere as well as the glue, ensuring it would hold throughout the flight. “The students were putting these materials in a bell jar and sucking the air out of it . . . and checking all of the materials held together – and to protect some of the electronics from the very cold temperatures of about minus 50 Celsius we simply used bubble wrap. … You’d be surprised to know that bubble wrap doesn’t explode when it gets into pretty much zero atmosphere.”

What's in the box? Jason shows the weather balloon's payload.

The photos that came back from maximum altitude look “pretty much like that taken from a space shuttle”, Mr Brand said.

“So very dark skies looking at this very thin blue line around the Earth which is our atmosphere and protective layer. It’s a bit scary when you see that photo and realise how thin the Earth’s atmosphere really is.”

Picture right: What’s in the box? Jason shows the weather balloon’s payload. Photo: Supplied

When it came time to recover the balloon it was tracked to landing on a field near the small town of Weethalle in NSW, Mr Brand said. “There was nothing growing on it. It seemed to have been abandoned.”

After knocking on a farm door to no avail, he and his son entered the field to locate the balloon. After driving “pretty much right on top of it” it was recovered, allowing for the father and son duo to publish the photos it captured that weren’t sent back live but stored on the camera attached to the balloon.

Mr Brand hopes to do more balloon launches and get schools involved.

“I’ll keep doing this each year and trying to get . . . more interest in the school year earlier in the year. I’m very keen to hear from people that might be interested in getting involved.”

End of article: UpLift-1 in the Sydney Morning Herald

Balon Stellar Stratosfera 30Km

Stellar Balloon flight to the stratosphere in CroatiaJason & Robert to Fly Balloons (HAB) in Croatia.

by Robert Brand

As many will know, I am the Director of Spacecraft Communications, Navigation and Data for Team Stellar and Jason is Stellar’s Australian Student Representative.

Jason and I also hold a world record for launching and recovering High Altitude Balloons (HABs). We have launched and recovered 16 so far and you can’t get better than 100% success. Mind you, much of that is attributed to us researching and finding a fantastic launch and recovery area with HAM radio APRS coverage (one of our tracking systems), flat and clear land with little water and good mobile telephone coverage and good access roads to farming and grazing land.

Croatia is a very different place. Our Team Stellar Croatian associates have told us that part of our recovery team will be Aplinists, capable of hiking in snow and ice to recover any balloon that lands high up on a mountain!

So why is Stellar launching these flights?


Balon Stellar Stratosfera 30Km

Basically we will be carrying experiments from schools all over Croatia. They will go into the stratosphere and after recovery they will be returned to the schools for analysis and of course we expect them to publish the results.

More on this soon.

This is just one of several activities being undertaken by Team Stellar in the name of STEM Education – Science, Technology, Engineering, and Mathematics. Jason is 11 years old and will just turn 12 when we assist with this flight and will have just completed his first term in high school (year 7). He will be attending Sydney Secondary College – Balmain Campus just as his two older sisters did.

These will be larger balloons that will be needed to lift heavy payloads and to get them into the stratosphere before they explode and return to earth. We also expect to have cut-down ability to command the payload to release from the balloon and return to earth.

We will let you know more as we prepare for the flights in 6 months’ time. You can read more here later and more at:

That is Jason and I celebrating with a soft drink after the successful recovery of UpLift-1, our first balloon mission in December 2011. Jason does the tracking, radio systems and navigation – I just do the driving.
Jason and Robert Brand Recover UpLift-1

UpLift-1 Prediction

Our First High Altitude Balloon Flight (Archives)

UpLift-1 PredictionUpLift-1 Mission Announced

Fuzzy Logic Science Show

Jason and Robert Brand on Canberra Radio

In April 2013, Jason and Robert Brand joined with Rod Taylor, the host of Canberra’s science show, Fuzzy Logic, for an hour of chat about space and what we are doing here in Australia. Jason got to talk about his involvement with high altitude balloon flights. He even got to back announce one the musical interludes. He had just turned 11 a few days earlier.

I discussed everything from my early days supporting space missions like Apollo 11 and right through to my work with Team Stellar.

You can listen to the show by clicking here

You can also use our flash player below:

“Canberra 2013-4-14 Interview about Space on the Fuzzy Logic Science program”

From Radio Interview Fuzzy Logic 2XX. Posted by Robert Brand on 4/15/2013 (6 items)

Generated by Facebook Photo Fetcher 2

UpLift-1 Flight Data Pt-1 (Archives)

*** Retrieved from Archives ***

UpLift-1 Facts and Figures 28th Dec 2011 Pt-1

Time for some SCIENCE. I have cleaned up all the data from the flight removing duplicated figures and out of place data that sometimes occurs from having lots of receiving stations all trying to add it to the database. The figures are certainly interesting and even fun to see what is going on during the flight.

Some Facts first:

  • Altitude of the launch site is about 90m or 300ft above sea level. flat farmland was chosen for lack of trees and easy access for recovery.
  • Morning was chosen for air stability and lower wind levels.
  • Weather: Clear with little to no wind. Summer.
  • Flight launch: 10;53 28th Dec 2011 EDST (23:53 27th Dec 2011 UTC).
  • Flight landing: 13:40 28th Dec 2011 EDST (02:53 28th Dec 2011 UTC).
  • Flight time: 2 hours 47 minutes.
  • Maximum Recorded Altitude: 26.181km – 85,896 feet – 16.2681 miles.
  • Distance traveled: 45.6km (28 miles).
  • Direction from launch of 72 degrees.
  • Rate of climb: 3m/sec (5ft/sec) near sea level to near 5m/sec (8ft/sec) at the burst point.
  • Payload temperature during flight: 34C (93F) at ground level to -12C (10.4F) minimum.
  • Maximum recorded rate if fall: 33m/sec (110ft/sec)
  • Anomalies encountered: Thermal at the time of release caused 9m (30ft) initial rate of climb.
  • Balloon: Totex 350g (optimum fill 1.2m, actual fill 1.35m diameter)
  • Gas used for lift: Helium
  • Payload: Polystyrene box with a bit less than 1/2kg weight (1lb) including parachute.
  • Camera: GoPro 7mp still camera set to take photos every 30 seconds – lasted entire flight. Housing included
  • Tracking was via Amateur Radio APRS with Internet and direct reception in vehicle. 145.175MHz Packet radio.
  • Transmitter from Argent Data system with GPS rated for over 60,000 feet and 1/2 watt transmitter.
  • Antenna – precision tuned vertically mounted dipole.
  • Transmitter Power: 2 x mounted on-board Lithium 3V pile batteries.
  • Reporting time: 20 seconds.
  • Thermal insulation for transmitter: Polystyrene capsule and three layers of bubble wrap.

The first bit of data showed that UpLift-1 climbed very quickly. At first I could not believe the rate of climb, but there it was climbing at 9m per second. I now know that this was an anomaly. The simplest and most likely explanation is that at the time that we released the balloon we were in a thermal area where the hot air at that spot was rising quickly were near by air was falling. As it was early in the day, upper air thermals had not formed so the affect was short lived. So here is the graph of altitude for the flight:

Atitude vs Time

At the very start of the flight there is a slightly different rate of climb caused by the thermal that dissipates at about 2km. From then on the climb is steady and near flat. The rate of climb being mainly determined by the size of the balloon (air resistance and lift) and the wright of the payload. As the air thins, the balloon expands keeping the air resistance somewhat the same, but as altitude increases, the ability to lift is also reduced. The result is a fairly consistent rate of climb. At the maximum altitude the balloon bursts and the payload is released. The parachute is ineffective in the free air and the rate of fall is determined by air density producing a somewhat parabolic curve. For most balloon flights with a reasonable rate of climb, the climb to fall ratio is usually between 3:1 or 4:1 for flight estimations.

The rate of climb graph shows the linear and parabolic effects more clearly”

Rate of Climb - Fall vs Time

In the graph above, you can clearly see the high initial rate of climb and the slowing of the rate as it left the thermal event. The rate was not flat, but slowly climbed from 3m/sec (5ft/sec)  to near 5m/sec (8ft/sec) at the burst point. There is a fairly long period of time following the burst point before the payload reaches terminal velocity of greater than 33m/sec (110ft/sec) – remember that the plots are 20 seconds apart. There is one plot during the initial fall that indicated that the payload was accelerating and was showing 9m/sec (30ft/sec) fall and accelerating until terminal velocity is reached – the point where air resistance stops any further acceleration due to gravity.

The payload – a foam box weighing less than 1/2kg (about 1lb) has plenty of air resistance at sea level, but very little in the thin atmosphere. As it falls the air density increases and the rate slows. Where the rate of climb was determined by fairly linear forces, the rapid descent is clearly non linear when plotted against time.

Part two shortly with links to both imperial and decimal data data sets.

UpLift-1 Launch (Archives)

UpLift-1 Takeoff 28th Dec 2011.

UpLift-1 launch weatherBefore we even left home we needed a massive list to make sure that we did not leave anything behind. After all, a 600km / 400 mile trip for nothing would not be a lot of fun. It was a huge list for such a small balloon and payload. It included the balloon, parachute, payload, helium, spare balloon, test equipment, hoses, cameras, tripod, 2-way radios, tracking radios, decoders, computer, USB cables, mobile phones, car chargers and much, much more. But this is not about that story, this is launch day! We traveled to West Wyalong in NSW (Australia) and spent the night in a great little hotel ready for an early morning departure. We still had 100km / 60 miles to drive to the launch site. The first thing was to check the weather. We had already looked at a long distance forecast before setting the date as the Civil Aviation Safety Authority (CASA) in Australia have to issue an alert to pilots for our balloon. CASA have been wonderful UpLift-1 Launch site with Jason Brand age 9and amazingly helpful. A peek out the door reveals a perfect day for a balloon flight. The photo on right shot outside my hotel room reveals a brilliant day with little wind early in the morning. We packed the car and headed to Rankins Springs near Goolgowi. I had fallen in love with this little town in the middle of nowhere. With about 50 people living in town, it was just a speck on the map at the intersecting of some sealed main roads. What struck me was that it was a place that people cared about. The public places were clean and the grass cut, perfect for preparing a balloon flight.

We found a clear grassed area next to an old Railway water tank used for filling steam engines. The contrast was great – the old and the new. This story is going to be a bit instructive so lots and lots of pictures. First I had my son Jason (9) laidUpLift-1 fill - Latex Gloves out the clean plastic sheet for the filling operation. We placed items in the corner in case a breeze kicked up the corners and destroyed the balloon. We also used Latex gloves to stop acids and other oils from transferring from our hands to the balloon and potentially causing an early failure of the balloon when the UV and other chemicals in the air act on it. We could also have used clean cotton gloves. The problem there was two fold. Sweat from our hands filled the gloves and needed to be changed occasionally to prevent and drops from landing on the balloon. The second problem was that every time we wanted to use duct tape, our gloves stuck very well to the tape! That is me on the left taping the hose to the balloon to protect it and getting the gloves stuck to the tape. There were cable ties under the tape and I used the tape to protect the balloon from sharp edges. The cable ties held the balloon to the flexible PVC tube. I also had the other end of the tube over the balloon fill regulator on the helium tank. That was just sealed with duct tape.

It was then time to prepare the payload. I had decided to block off one of the port holes for the video camera as I wanted this balloon to rise quickly. I was also going to overfill the balloon above specifications to ensure that it would explode a bit earlier than normal. All precautions for a first flight. While we were preparing for the flight, Wally, one of the locals came by on his ride-on mower and remembered me calling in at the petrol / gas station a month earlier. He was excited that we had chosen his town for the launch and APRS Tracker being wrapped in bubble wrapwent off to find the kids in town so that they could join in with all the excitement. Wally was the unofficial “mayor” of the town! A lovely character that obviously cared about kids. The photo on the right shows me preparing the GPS transmitter (Amateur Radio APRS). I am wrapping it in bubble wrap as a thermal insulator to protect it from the cold at the outside air temperature at times during the flight will be between -40 (-40F) and -50C (-58F) or possibly even lower. The capsule is also made from Polystyrene so that too will provide some protection from the cold, but with openings for the camera, there will be some cold air entering the capsule. Care was taken to ensure the dipole antenna (the two gold wires) was mounted vertically in the capsule in the correct place and the small GPS receiver was on top so that it would get a strong signal from the GPS satellites orbiting the earth. The balloon was on a 10m (30ft) cord so that the antenna had no chance of puncturing the balloon. The final benefit was that the capsule would never land upside down so the GPS receiver would always be able to receive satellite signals and report its position once on the ground. Lots to consider. The batteries were also the best that we could buy. Failure was not an option and the cold can kill batteries. We also wanted UpLift-1 Tracker competethe transmitter to last for as long as it took to recover the balloon. The unit was switched on and the receiver in my car was used to checked it was operational and all systems working. The unit reported position, altitude, atmospheric pressure, payload temperature and battery voltage. All parameters where checked and normal. APRS normally will allow you to see the track on the Internet, but we were too far away from any receivers to register. That would only happen when the flight was high enough for the distant receivers to “see” the balloon – once it was high enough to overcome the radio shadow caused by the curvature of the earth, allowing “line of sight” radio signals to be heard. Similarly when we landed, we would lose the signal close to the ground. We were going to rely on the receiver in our car to pick up the transmitter signals and read the location. This would be super important in a couple of hour. More on that later. The photo at right show the transmitter with one layer of bubble wrap. Two more were added with the GPS receiver wrapped to the top – above the side that you can see the unit with care taken to get it the right way around.

UpLift-1 CapsuleThe camera batteries were charged the night before and the camera then required special care. We had it in a sealed box with desiccant overnight to ensure that there was as little moisture as possible in the camera. This would otherwise cause condensation during the flight and fog the images. It was inserted quickly into the housing and the almost closed housing was flushed with helium from the filler hose. This ensured that water in the air was removed and the housing was sealed. The camera was turned on and set to commence taking photographs – the counter on the front began incrementing every 30 seconds. Both the camera and the transmitter were mounted in the capsule. The picture shows the camera in place secured with blocks of polystyrene  and the transmitter in place with the GPS receiver at the top. The payload bay was covered and sealed with duct tape and the capsule was ready to fly. All that waited was to fill the balloon.

UpLift-1 Balloon FillWe had brought a large bed sheet to hold over the balloon in case the wind was too strong for a simple fill. The wind was light and we did not need this, but if we had we would have asked volunteers to hold each corner down while we filled the balloon. The balloon fill was simple, but we needed to measure the diameter to get the fill right. If we under filled the balloon then it might never burst or even rise fast enough and drift long distances before popping. Either way I had made a decision to lighten the payload UpLift-1 measuring the diameterby leaving out the video camera and to overfill the balloon slightly. It was, from the manufacturer’s specifications meant to be 1.2m (3.937ft) in diameter.  I was going to fill it to 1.35m (4.43ft). Since the day was sunny, it was easy to accurately measure the diameter. We simply used a tape measure across the centre of the shadow – perpendicular to the rising sun. This meant that any stretch of the shadow from the angle of the sun would not affect the measurement. In the picture at left you can see that the sun is behind me and Jason is in the right place. The local that was helping just needed to move the measure up closer to the camera to get the final measurement (the photo was a few seconds early). We had the right diameter now and were ready to remove the hose and secure the payload. The helium tank valve needs to be shut off at this point in case the hose gets pulled and the tank either topples or adds more helium to the balloon. If the tank falls, then you could damage the regulator.

This next operation was the most difficult part of the procedureUpLift-1 Securing the neck and the payload. We had already wrapped a cable tie in duct tape to lower the chance of tearing the balloon when inserted. it would secure the nylon cord that secures the parachute and payload. First though, we needed to cut away the cable ties securing the balloon to the hose – all without cutting the balloon. The protective duct tape was peeled away and side cutters were used to sever the heads of the cable ties. This kept sharp edges away from the balloon. That is me on the right cutting the cable ties away (sorry no close-ups). Once the hose is removed then the balloon needs to be sealed and secured. I have no photos of this but the fill tube of the balloon is folded once and then a second time (4 folds thick). The cable tie with duct tape that was prepared earlier was inserted in the middle of the bottom folds ready to secure the payload. I then secured the balloon and and its UpLift-1 ready to launch with help from the locals at Rankins Springsgas with three cable ties above that making them tight around the fill tube. It must be tight to keep the gas in during the flight, especially as the outside pressure gets down to a few percent of sea level and the inside pressure remains the same. I cut the loose ends of the cable ties and used duct tape to keep them from touching the balloon. The cable tie that secured the payload was looped and the payload tied to the balloon. Again duct tape was used to secure the knot holding the payload to the balloon. Nothing was left to chance. The knot used was a bowline and few half hitches – sufficient if you have the duct tape to stop them unraveling. We were ready to launch. The local mission control countdown team were assembled (all but one shy kid and a few adults) and provided the all essential countdown – that’s Wally in he green/yellow safety shirt.

UpLift-1 Launch with Jason BrandIt was a great moment. Rankins Springs’ first near space mission. The countdown proceeded with the kids leading the chant. At zero, my son Jason released the balloon and it was away. Note the old steam engine water tank behind Jason – the old and the new. At about 270 metres the distant APRS receivers saw the balloon’s transmissions and we breathed a sigh of relief that we would be able to track and recover the balloon. We saw the updates every 20 seconds on our smart phones with all the details of the flight. We watched as the balloon stayed in clear view right up to 5km. We kept losing site of the tiny white dot, but the odd reflective glint from the shiny black duct tape brought our eyes back to the tiny 1.35m (4.5ft) white dot up in the clear blue skies of central NSW.  It should be noted, that none of these photos have been altered. They are directly from a number of cameras. The colours have not been corrected! The final job was to pack the car and chase the balloon.

It was serendipity that the first photo snapped by the payload camera at around 270m (900ft) was of the town itself. A wonderful memento of the occasion.

Below is the photo from Rankins Springs. You can click on most of the photos above and below to see a large version of the image (requires that you click through an intermediate page). I have uploaded the image of the town in the highest format possible.

UpLift-1 Rankins Springs 60 seconds after launch

60 seconds after release (below). This photo looking east above Rankins Springs:

The Space Show (Archives)

David Livingston*** Retrieved from Archives ***

Robert Brand – Guest on The Space Show

Robert Brand was a guest of Dr David Livingston on the Nov 1st 2011 edition of The Space Show. The program disussed Do-It-Yourself Space and was well received by all that heard it. The WotzUp website and the various missions were discussed at length during the broadcast.

The program can be hear by Click Here to Listen 

The Space Show page for the show archive can be viewed by Clicking Here to View

The page details are as follows:

Guest: Robert Brand.

Topics: Australian space history, Save Our Space Systems, old style radio dish antennas, space education outreach in Australia. You are invited to comment, ask questions, and discuss the Space Show program/guest(s) on the Space Show blog, Comments, questions, and any discussion must be relevant and applicable to Space Show programming. Transcripts of Space Show programs are not permitted without prior written consent from The Space Show (even if for personal use) & are a violation of the Space Show copyright. We welcomed Robert Brand as our guest to discuss space advocacy, space interests, education, and projects in Australia. I suggest you visit and have available the following websites while listening to this program: 1) This site has the tabs and pages for many of the programs discussed by our guest. 2). 3) Click on the Space-Comms tab. In our first segment, Mr. Brand began by talking about the Global Space Network he was creating by utilizing outdated equipment such as 30 meter dishes that have been abandoned. He described his concept in detail, including costs and the likely customer base. Later in this segment, we took several calls from listeners such as the one by Roger that commented on the outstanding space education outreach projects undertaken by Mr. Brand so we moved along to the topic of kids and space education. Robert talked about 3D lunar photography from Apollo and some of his Middle School outreach projects. Later, Monroe called in to mention Team Prometheus and their satellite project as well as the N-Prize. You can learn more about Team Prometheus at Kimberly emailed in requesting Robert share his vision for 21st century space awareness. Robert replied saying “making space everyday for everyday people.” Trent called from Australia to ask Robert what he thought were the greatest space needs for Australia. Robert talked about the need for disaster recovery information, data, facilities, etc. using real time space resources. In the second long segment, Robert directed us to his various websites listed at the start of this summary. We talked about Moon Bounce and Space-Quest, amateur radio , the UpLift project with balloon launches, and more. Robert went through the other programs on site including SugarShot, MissionTrax, Kidz-In-Space, and we talked about cubesat swarms and owning your own personal satellite. Later, he told us about his building a satellite tracker in his basement, he talked about holding workshops in his area to promote space education and personally owning a satellite, plus getting kids to take ownership of the technology, research, and data which inspires them with the projects, all of which is part of Do-It-Yourself-Space. Later, we talked about Australian space interests, the Australian space program, and space awareness in Australia. During the last few minutes of our two hour discussion, we talked space history, the Apollo program, the Parkes Radio Telescope, Honeysuckle Creek, the Challenger disaster, Robert’s leaving the industry and then his return to promote space education among kids. You can email Robert Brand at

After you have listened, please post a comment on the following blog for The Space Show: