Edge of Space Sciences

EOSS-260 was launched the Camp Guersey North Training area (N 42 ° 22.629', W104° 44.834') at an elevation of 5014 ft. at 10:33 AM MDT. The balloon burst at 12:14:45 MDT at an altitude of 96,459 ft. after an ascent averaging 901 ft./min. The parachute and flight string touched down at N 42° 24.683', W 103° 54.316' at 12:50 PM at an elevation of 4699 ft. after a flight of 2 hours 17 minutes. Horizontal touchdown speed was 21 mph. The straight line distance between launch and touchdown was 43.0 miles along the ground. After touchdown the wind pushed parachute and flight string about 59 ft.

EOSS-261 was launched the Camp Guersey North Training area (N 42 ° 22.575', W104° 44.835') at an elevation of 5178 ft. at 10:50 AM MDT. The balloon burst at 12:59:30 MDT at an altitude of 95,688 ft. after an ascent averaging 702 ft./min. The parachute and flight string touched down at N 42° 28.775', W 103° 33.448' at 13:39 PM at an elevation of 4823 ft. after a flight of 2 hours 49 minutes. The touchdown horizontal speed was 18 mph. The straight line distance between launch and touchdown was 61.2 miles along the ground. After touchdown the wind pushed the parachute and flight string another 597 feet along the ground. The parachute and flight string were recovered at N 42° 28.686', W 103° 33.504' at an elevation of 4525 ft.

CU Science Discovery video, "Young engineers aim for the stratosphere at Science Discovery Camp" is posted!

Here is a link to a CU Science Discovery page with experiment data, drone footage, and launch videos!

All three flights were very successful.

EOSS-253, 254, 255, and 256 were launched in rapid succession starting at 0700 from the Limon Softball fields launch site on July 15, 2017. All were 1500g exempt balloons.
EOSS-253 reached an altitude of 98,885 ft
EOSS-254 reached an altitude of 100,795 ft
EOSS-255 reached an altitude of 97,847 ft
EOSS-256 reached an altitude of 96,219 ft
All payloads were recovered north of Matheson, CO. Recap galleries have been created below. Check back for updates to Charts, data and photos as they are loaded.

EOSS-252 was launched from the Hutchinson Kansas Airport as part of GPSL, and recovered southeast of Newton, Kansas.  It achieved an altitude of 98,990 ft.

Altitude vs. Time plots from aprs.fi have been added.  Please add any pictures to the galleries below.  

Updated 5/20/17: Posted additional pictures to Prep and launch gallery.

EOSS-250 and 251 were launched from Guernsey, Wyoming and recovered northeast of Lusk, Wyoming.  EOSS would like to thank WA7SNU, AE7AF, KD7JNQ and all the local Wyoming hams for help in setting up communications to support this flight. 

Three balloons were successfully launched and retrieved, with a little rain and some muddy roads and fields.

• EOSS-247 Burst at 95,382 ft and landed at 38.986624, -102.990035
• EOSS-248 Burst at 92,282 ft and landed at 39.05677, -103.12716
• EOSS-249 Burst at 96,748 ft and landed at 39.1470, -103.2405

Mileage link for EOSS members.

Submit mileage here: Mileage Form  Charts and Data, Launch and Recovery Photo galleries posted below.

Altitude vs. Time for 241,242,243,244, 246 posted.  

More graphs and data, and a few in-flight pictures posted.

National Space Science & Technical Institute (NSSTI) has posted a YouTube flight video captured during the flight of EOSS-240. An updated "Director's Cut" video is posted here.

Additional pictures added.

The balloon launched at 0831 and landed at 1218. It flew approximately 116 miles and landed at 40.96950, -102.57883, 3-1/2 miles northwest of Sedwick, Colorado. The balloon reached a height of 94,963 ft. After landing, the parachute dragged the payload string 962 feet. Good payload construction saved all the experiments!

All three flights flew successfully and were easily recovered.

• EOSS-234 launched at 0700 and was recovered at 39.10927, -104.10017
• EOSS-235 launched at 0720 and was recovered at 39.08967, -104.06717
• EOSS-236 launched at 0738 and was recovered at 39.09282, -104.06480