Next Flight

Colorado Space Grant Demosat Flight

Planning has started.

This is a Colorado Space Grant Consortium Demosat flight. We are going to try to launch one 3000g balloon, but if the weather (cloud cover) does not cooperate, we will be prepared to launch two 1200g balloons that will not be limited by cloud cover. Three payload plans are attached below, two for EOSS-226 covering both options, and one payload plan for EOSS-227 (if needed). The launch is scheduled for our Windsor launch site.

Weather and flight path predictions are posted here. These will be updated starting one week before the launch and will be updated daily. A number of usefull links are collected here. This site has several links that will be active only during the flight and several links that show predictions and weather observations that are relevant to this flight.

Flight Coordinator: 
Event Date: 
Saturday, July 30, 2016 (All day)
Alt Launch Date: 
Sunday, July 31, 2016
Launch Site: 


This will either be a 3000g balloon with all of the CSGC Demosats (payload plan posted below) or one of two 1200g balloons that can be flow through cloud cover (1200g balloon payload plan posted here).

Balloon Type: 
3000g Latex
10 foot nylon parachute with fast release
145.600 MHzKE0BMV-11APRS/DF/Cutter
144.340 MHzAE0SS-13APRS/Digi


This is an optional 1200g balloon that will carry half of the CSGC Demostats is we fly two balloons through cloud cover that prevents flying one 3000g balloon.

Balloon Type: 
1200g Latex
5.8 foot nylon parachute with fast release
147.420 MHzKE0BMU-11APRS/DF/Cutter
144.340 MHzKC0UUO-11APRSTimeslotted :15 and :45

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:

  • 449.450 MHz RMRL (103.5 Hz Tone)
  • 448.225 MHz (141.3 Hz Tone) Testing… PL verified 7/2/14
  • 446.100 MHz Field Simplex
  • 146.550 MHz Backup field simplex

Launch Site Simplex: 146.550 MHz

HF - Possible ops: 7.235 LSB

Tactical Calls: 
TacticalCall SignNameNotes