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EOSS-321 COSGC Spring Launch - Recap
EOSS-321 was launched on April 2, 2022 with payloads from Colorado Space Grant Consortium Colleges on a single 3000 gram balloon from Deer Trail Colorado at 0719 MDT 4/2/2022. The balloon reached an altitude of 95,077 feet before bursting at 0825 MDT . The flight string landed at at 0858 MDT. All payloads were recovered southeast of Genoa, Colorado at 39° 15.99', -103° 27.11'.
EOSS membership mileage reimbursement form: https://forms.gle/UGWgbFAfbTnLBKA37
Recap Gallery:
Original Announcement:
Update 3/30/22 2130: Payload Plans Revision A are posted. There are updates to the payloads and frequencies. Please see below.
EOSS 321 and 322 will be the launch of two 3000g ballooons from Deer Trail, Colorado, carrying Payloads from Colorado Space Grant Consortium Colleges. In the event that cloud cover exceeds 50%, the payloads will be launched on 3 smaller "exempt" balloons. Payload plans for the contingency flight may be found at the links below. Note that the launch site may need to shift east if updated predictions continue to show a flight path approaching within 30 nmi of Denver International Airport. Predictions will be updated daily within the 10 days prior to the flight, and may be found here: Flight Prediction (eoss.org) Online tracking during the flight https://track.eoss.org
EOSS-321 Lite Payload Plan Rev A
EOSS-322 Lite Payload Plan Rev A
EOSS-323 Lite Payload Plan Rev A
Event Date:
Saturday, April 2, 2022 - 00:00 to 23:45
Flight Coordinator:
KE7KCK
Launch Site:
Grid:
Last Chance X 40 Y 60Test: N 40.00 • W 103.00 X 71.3 Y 77.9 Predict: 3 mi N of Genoa (NS CR-32 & EW CR-3K) (X 46.5 Y 31.4)
Flights:
EOSS-321
A single 3000g balloon with 9 COSCG Balloonsats
Balloon Type:
3000g Kaymont
Parachute:
12 ft Rocketman
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 145.645 MHz | KC0D-1 | APRS/DF/Release | |
| 144.34 MHz | AE0SS-12 | Bottom APRS Beacon | Slotted 24/54 |
Payload Plan:
EOSS-322
A single 3000g balloon with 6 COSCG BalloonSats
Balloon Type:
3000g Kaymont
Parachute:
12 ft Rocketman
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 144.905 MHz | KC0D-14 | APRS/DF/Release | |
| 144.340 MHz | AE0SS-13 | Bottom APRS Beacon | 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
• DMR - RM Ham DMR System. Rocky Mountain Wide Talk Group 700
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 | KB0UBZ | Ben | |
| Charlie | KE7KCK | Tom | |
| Echo | KB0YRZ | Chris | |
| Foxtrot | N6BA | Jeff | |
| Gound Station | N2XGL, K5JK, KB0TVJ, Randy | Jeff, Tom, Russ, Randy | Russ remote |
| Hotel | K0MCW | Tony | |
| Yankee | KE0YAL | Brad | |
| Lima | K0LOB | Jim | |
| Golf | KE0GKI | Bernadette (CSGC) | |
TR Breakfast:
I-Hop in Limon, 6:15 am
Test: N 40.00 • W 103.00 X 71.3 Y 77.9
Predict: 3 mi N of Genoa (NS CR-32 & EW CR-3K) (X 46.5 Y 31.4)
Weather forecast for Deer Trail at 0700 MDT Saturday:
Sunny skies, cloud cover 10%, visibility unlimited
Temperature 31, dew point 23, winds SSW @ 8 mph