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EOSS-312/313/314 COSGC DemoSats & Ball BIRST - Recap
EOSS-312, 313 and 314 were launched from Genoa Colorado on August 1st, 2021. All payloads from the three balloons were recovered approximately 20 miles south of Limon, Colorado.
EOSS-312 was launched at 0657 MDT, and reached a maximum altitude of 98,639 ft.
EOSS-313 was launched at 0720 MDT, and reached a maximum altitude of 98,738 ft.
EOSS-314 was launched at 0741 MDT, and reached a maximum altitude of 97,198 ft.
Recap Gallery:
Original Announcement:
Update 7/31/21 1300: Revision B to all payloads plans posted. No beacon changes, minor corrections to weight and launch date.
Two 3000g balloon or Three 1500g balloons carrying DemoSats from multiple COSCG colleges and Ball Aerospace BIRST intern program.
The predictions are updating daily. You can find the latest predictions here. Scroll down to EOSS-312 and click on the links to the right of Genoa.
If cloud cover precludes launching heavy balloons, we will split into 3 exempt balloon flights.
Event Date:
Sunday, August 1, 2021 - 07:30
Flight Coordinator:
Tom Londrigan
Launch Site:
Grid:
Grid location is Punkin Center X 60 Y 20 Grid Test: N 39.000 • W 103.000 X 97.5 Y 30.3 Grid Test: N 39.000 • W 103.000 X 97.5 Y 30.3
Flights:
EOSS-312
One 3000g or One 1500g balloon in support of Colorado Space Grant Colleges
Balloon Type:
3000g latex
Parachute:
12 ft Rocketman Orange/Green
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 144.905 MHz | KC0D-3 | APRS/Release/DF | Top - paired with Release Charlie |
| 144.340 MHz | AEØSS-12 | APRS / Digi | Digi EOSSA Slotted @ 24/54 |
Payload Plan:
EOSS-313
One 3000g or Two 1500g balloons launched in support of the Ball Aerospace BIRST internship program
Balloon Type:
3000g latex
Parachute:
12 ft Rocketman Orange/Green
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 145.765 MHz | KC0D-14 | APRS/Release/DF | Top - paired with Release Adam |
| 144.340 MHz | AEØSS-13 | APRS / Digi | Digi EOSSX Slotted @ 10/40 |
Payload Plan:
FrequencyList:
EOSS Preflight Net @ 7 PM Mountain Time preceding night:
• 449.225 MHz (-5 MHz Offset, 141.3 Hz CTCSS) Rocky Mountain Ham Radio (RMHAM) Repeater and EchoLink *CANONCTY* conference and the Fun Machine linked system
• 146.940 MHz (-600 KHz Offset, 103.5 Hz CTCSS) Rocky Mountain Radio League (RMRL) Repeater if the RMHAM machine is down
• 146.640 MHz (-600 KHz Offset, 100.0 Hz CTCSS) Denver Radio League (DRL) Repeater will serve as a backup to the backup repeater
Launch Site:
• 446.050 MHz Simplex
(Note that some radios assume these are repeater frequencies and attempt to put a 5 MHz offset in the transmit frequency automatically)
Track & Recovery Operations:
Repeaters:
• 449.450 MHz (-5 MHz Offset, 103.5 Hz Tone) RMRL repeater (Assuming we are flying out of Windsor).
• 448.450 MHz (-5 MHz Offset, 100.0 Hz Tone) PPFMA repeater (Assuming we are flying out of Deer Trail).
Simplex Frequencies:
• 446.100 MHz Balloon #1 Field Simplex
• 446.150 MHz Balloon #2 Field Simplex
• 446.200 MHz Balloon #3 Field Simplex
• 446.275 MHz Car to Car drive out Simplex
(Note that some radios assume these are repeater frequencies and attempt to put a 5 MHz offset in the transmit frequency automatically)
Legacy 2M Simplex Frequency (not generally used due to desense/interference issues with the 2M APRS packets)
• 146.550 MHz Simplex
2M Direction Finding Frequencies:
- 144.340
- 144.360
- 144.905
- 145.535
- 145.645
- 145.710
- 145.765
Tactical Calls:
| Tactical | Call Sign | Name | Notes |
|---|---|---|---|
| ALPHA | WA0GEH. KC0D | Marty, Mark | |
| Bravo | W9CN, N0JPS | Mike, John | |
| Charlie | |||
| Delta | K0SCC | Stephen | |
| Echo | K0BRA, N0RPF | Doug, Rob | |
| Foxtrot | KE7KCK | Tom (FC) | |
| Golf | K0JWB, K0NKK | John, Nancy | |
| Ground Station | N2XGL,K5JK. N0Call | Jeff, Tom, Randy | |
| Hotel | KB0YRZ | Chris | |
| India | K0LOB | Jim, Julie | |
| Kilo | N0NDM | Larry | Launch and Track |
| Lima | N6BA | Jeff | |
| Mike | N0FTI | Steve | Fill, Launch Track |
| November | KE0GKI | Bernadette | CU |
| Tango | KC0L | John | Tracking from Texas |
| Whiskey | KD0NRY | Chris | CU |
| Oscar | KE0JZV | Matt | CU |
TR Breakfast:
Optional Breakfast: Ad Hock tracker breakfast is going to be at the IHOP at the Flying J truck Stop in Limon at 6 AM.
Grid location is Punkin Center X 60 Y 20
Grid Test: N 39.000 • W 103.000 X 97.5 Y 30.3