EOSS 215/216 CU Demosats and Gateway to Space Recap

EOSS 215 achieved an altitude of 95,282 ft.  Payloads were  recovered approximately 10 miles southeast of Limon, Colorado.

EOSS 216 achieved an altitude of 95, 263 ft.  Payloads were recovered South of Limon at 39.19633°, -103.70350°.

EOSS 215 Launch video is posted at https://www.facebook.com/Edge-of-Space-Sciences-162353343883044/

To submit Mileage Reimbursement click here EOSS 215//216 and complete the form.  


Original Announcement: 

Launch Site Change: Due to airspace violations from most of the northern sites, we are shifting the Launch Site to DEER TRAIL.

EOSS 215 and 216 will be a two balloon launch supporting the Gateway to Space and Colorado Space Grant Demosat program.  Launch time for EOSS-215 will be 0650, and EOSS-216 will be 0710 MT.

 You can access the predictions for all launch sites at this link: http://www-frd.fsl.noaa.gov/mab/sdb/predict_0.htm



Event Date: 
Saturday, November 7, 2015 - 00:00
Flight Coordinator: 
Tom Londrigan KE7KCK
Launch Site: 
Punkin Center: 30,15 Test N39.000 W103.6000 Answer: 35.4, 25.2


EOSS-215 will be a flight on behalf of University of Colorado's Gateway to Space class.

Balloon Type: 
144.34AE0SS-13APRS Beacon
Payload Plan: 


EOSS-216 will be a flight supporting the CU Demosats program with payloads from Colorado Space Grant Consortium Colleges.

Balloon Type: 
144.34AE0SS-12APRS Beacon
Payload Plan: 

Preflight Net:

  • 147.225 MHz CRA Repeater (107.2 Hz Tone) 8 pm MDT preceding night
  • 146.940 MHz (103.5 HZ Tone) RMRL Repeater if the CRA machine is down
  • 146.640 MHz (100 Hz Tone) DRL will serve as a backup frequency

Recovery Operations:

  • 448.450 MHz PPFMA (100.0 Hz Tone)
  • 449.450 MHz RMRL (103.5 Hz Tone) Backup
  • 448.225 MHz (141.3 Hz Tone) Testing… PL verified 7/2/14
  • 446.100 MHz Field Simplex for EOSS #215   
  • 446.150 MHz Field Simplex for EOSS #216
  • 446.275 MHz Car-to-Car Driveout Coordination
  • 146.550 MHz Backup Field Simplex

Launch Site Simplex: 446.050 MHz

HF - Possible ops: 7.235 LSB

Tactical Calls: 
TacticalCall SignNameNotes
AlphaWAØGEH, KCØD, N0KKZMarty, Mark, RickAlpha Trackers
BravoW9CN, KBØYRZMike, Chris, JenTrackers, Backup Alpha
CharlieKE7KCKTomTracker, FC, Needs Rider
DeltaKØSCC, KEØBMVSteve, ParkerTracker, Launch Team
EchoKDØSEMDaveTracker, Launch Team
FoxtrotKCØLJohnTracker, from Texas
GolfKCØRPSJimTracker, Sunday Only
IndiaNØIXDoug, EmmaTracker, Trackerette
WhiskeyKDØRNYChrisTracker, CU Space Grant
TR Breakfast: 
Breakfast will be at Denny's in Limon for this adventure, 6:15 am. Grid location has been added, see above. Digi Instructions for each payload: To Digi off EOSS #215, AE0SS-13 is configured to digi EOSS2, and is on 215. Put EOSS2 in your APRS path To Digi off EOSS #216, AE0SS-12 is configured to digi EOSS, and is on 216. Put EOSS in your APRS path