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NSTAR 14-A recovered near Carbon IA

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Nebraska Stratospheric Amateur Radio
NSTAR Flight 14-A - 26 July 2014 PDF Print E-mail
Written by Mark Conner N9XTN   
Sunday, 27 July 2014 18:53

NSTAR Flight 14-A was launched from Treynor IA and recovered successfully near Carbon IA on July 26th.  Updates will be posted soon.

 

Last Updated on Sunday, 27 July 2014 21:03
 
Next NSTAR flight PDF Print E-mail

We need to order balloons before we have another flight.  I think we'll have one in late August or early September, and maybe again later in the fall.

  • Primary tracking: N9XTN-11 on 144.36 MHz
  • Backup tracking: N9XTN-12 on 144.39 MHz 
Last Updated on Sunday, 27 July 2014 18:59
 
Flight 13-C - 31 August 2013 PDF Print E-mail
Written by Mark Conner N9XTN   
Monday, 23 September 2013 17:32

NSTAR Flight 13-C launched from Treynor IA at 0803 CDT on Saturday, August 31.  This flight reached a maximum altitude of 125,073 feet under a 1600g Hwoyee balloon and landed southeast of Red Oak, IA.  This is a new altitude record for NSTAR.

The SD card for the Canon still camera was not initialized properly, so it could not take pictures automatically at intervals and was removed before launch.  The Kodak Zi6 video camera ran to about 100,000 ft altitude and still photos will be captured from that video later.  A panorama image from a series of frame captures, using Microsoft ICE to stitch them automatically, is here.

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Last Updated on Thursday, 02 January 2014 03:58
 
Flight 13-B - 20 July 2013 PDF Print E-mail
Written by Mark Conner N9XTN   
Sunday, 21 July 2013 20:41

NSTAR Flight 13-B was our annual UNO Aerospace Education Workshop BalloonSat flight, flown in cooperation with Paul Verhage KD4STH of NearSys.  The weather was nearly perfect, a little cooler than previous days and almost no wind.  Our setup proceeded quickly and we launched our 1000g Hwoyee balloon from Treynor High School in Treynor IA at 0751 CDT (1351 UTC) with 10 lbs of payload and two pounds of free lift.

Our initial chase plan called for stopping in Red Oak to wait for the balloon to burst.  However, as we headed east towards US59, it became apparent our track was bending farther to the north than planned.  We stopped in Carson for a while, then again in Griswold.  At both locations, we were able to spot the balloon with the naked eye when there weren't clouds in front of it.  

For this flight we had two trackers, a BigRedBee 2m unit and an OpenTrackerUSB paired with an Alinco DJ-190T that has been a longtime veteran with NSTAR.  Both performed very well during the ascent, providing solid tracking information on 144.39 and 144.36 respectively.  

The balloon burst at 94,189 ft at 0926 CDT (1426 UTC) about 10 miles southwest of Griswold.  This was a concerning time for us, as we had lost tracking information on some previous flights at burst - sometimes temporarily, sometimes permanently.  We were monitoring the audio of our 144.36 signal and were relieved that the transmissions were occuring on schedule.  However, the flutter in the signal was preventing proper decoding.  We were also monitoring Internet reception of our 144.39 signal and it was obvious that the BigRedBee transmitter was having difficulty both maintaining GPS lock and being heard.  After a few minutes, we heard nothing more from our BigRedBee transmitter but the 144.36 payload did give us good reports.  

We headed towards Grant and considered stopping again, but decided instead that we were too far in front of the projected path.  We backtracked to the west on a gravel road and stopped in a few miles as the payloads were falling below 6000 feet and should have been below the cloud cover.  It took a few moments to spot the parachute but we finally saw it off to our south.  After a quick drive to the south, we observed the payloads land at 0959 CDT (1459 UTC).

Just south of the landing site was a farmhouse with a horse lot and a barking but seemingly happy dog on the front porch.  We made contact with the owners and got permission to search for the payloads.  There were some tall trees on the property but we saw the parachute miss them.  It turned out they landed in some grass between the cornfield to the north and the horse lot.  Once again we managed to avoid a tall-corn landing in the summer in Iowa.  

We checked over the BalloonSats and they were mostly intact.  The covers for one camera payload had come off but the camera was still inside.  One of the payloads had a sealed water bottle with two goldfish inside - they survived the two-hour ride to near space.  We got a recommendation from the property owners to go to the Rainbow Cafe in Red Oak for a fine lunch, where we exchanged video and pictures and talked over the day's flight before returning to Omaha.

Google Earth file of this flight

 

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Last Updated on Thursday, 02 January 2014 03:58
 
About NSTAR PDF Print E-mail
Written by Mark Conner N9XTN   
Friday, 09 May 2008 03:40

Nebraska Stratospheric Amateur Radio (NSTAR) is an Amateur Radio High Altitude Ballooning (ARHAB) organization.  The mission of NSTAR is to:

a) Promote the awareness and use of Amateur Radio through the construction, launch, tracking, and recovery of balloon-borne equipment payloads.

b) Gain understanding of the troposphere and stratosphere by recording meteorological data.

c) Practice the forecasting of mission-critical weather parameters for balloon launches.

d) Learn electronics construction and programming techniques to increase the capabilities of the NSTAR payloads.

We use helium-filled latex balloons to loft small payloads into the atmosphere, GPS to determine the position and altitude, and amateur radio to communicate the data to chase teams on the ground.  Typical altitudes reached are from 10-20 miles and the balloon can travel 30-100 miles downwind over the course of 1-2 hours.

The inspiration for NSTAR came from the Kansas Near Space Project (KNSP) run by (Lloyd) Paul Verhage, KD4STH.  Click here to see a recap of the 1998-99 flights.  Flight testing of the first NSTAR capsule was accomplished with the invaluable help of N3KKM Bill All, formerly of the Near Space Balloon Group in the Kansas City area.

 
 
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