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EOSS-342 Denver Area High Schools - Recap
- One 1500g balloon [EOSS-342] was launched from Wiggins High School at 06:56 am MDT on Saturday June 3, 2023.
- The balloon carried 2 DSST HS payloads, 1 Wheat Ridge HS payload and the EOSS GoPro Max Camera.
- EOSS-342 rose to an altitude of 101,427 feet where the balloon burst.
- The payload string then landed about 2.5 miles northof Eaton, CO in Ault, CO at 0842 MDT at Latitude 40.5657, Longitude -104.7224, Altitude 4,902 ft [300 yards north of CR-80 just east of US-85].
- Mileage link for club members https://forms.gle/qJjy47iTHF5ywDPJ6
Recap Gallery:
Original Announcement:
This flight is for Students of the Denver Public School's Denver School of Science & Technology, Northfield High School, and Jeffco Public School's Wheat Ridge High School.
The flight is sponsored by the American Institute of Aeronautics and Astronautics - Rocky Mountain Section (AAIA-RMS).
MIleage link for club members is here.
Event Date:
Saturday, June 3, 2023 - 00:00 to 23:45
Flight Coordinator:
John Dinneen KCØL
Launch Site:
Grid:
Windsor X 30: Y 60 Grid Test: N 40.000 • W 104.000: X 80.8 Y 27.8
Flights:
EOSS-342 Denver Area High Schools
The payloads will be 5 CubeSats and a GoPro Max Camera.Flight predictions link here ............Landing prediction is 6 mi E of Nunn(NS CR-100 & EW CR-41) (X 45.6 Y 76.4)
Balloon Type:
Kaymont 1500g
Parachute:
Rocketman 10 ft.
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 144.340 | AE0SS-12 | APRS/Digi EOSSA | Timeslot at 0.27 & 0.57 |
| 144.905 | KC0D-14 | DF, Remote Release Adam |
Payload Plan:
FrequencyList:
EOSS Preflight Net @ 7 PM Mountain Time the preceding night:
The preflight net is hosted on the Fun Machine linked system https://www.we0fun.com/
EchoLink *CANONCTY* conference and on the TGIF DMR Network Node: 1997 Talkgroup 815
Denver area Frequencies:
- 449.225 MHz (-5 MHz Offset, 141.3 Hz CTCSS) Mt Thorodin
- 448.150 MHz (-5 MHz Offset, 141.3 Hz CTCSS) DIA
- 449.975 Mhz (-5 MHz Offset, 100 Hz CTCSS) Westcreek
- 447.525 MHz (-5 MHz Offset, 146.2 Hz CTCSS) Devils Head
Back up Pre Flight Net Frequincies
• 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
Flight Day:
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
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)
Digital Mobile Radio (DMR):
The decision as to which talkgroup use will be made by the EOSS RF Coordinator on a per flight basis.
- Rocky Mountain Wide Network – Talk Group 700 - Rocky Mountain Ham Radio has approval to the use "Wide" for flight operations.
- Central Colorado Regional Network – Talk Group 720 - On occasion, EOSS may use the Central Colorado Regional Network (Talk Group 720).
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 | W9CN | Mike | Saturday only |
| Bravo | WAØGEH, KCØL | Marty, John (Flight Coordinator) | |
| Clarlie | NØRPF, KØBRA | Rob, Doug | |
| Delta | KØSCC | Steve | |
| Echo | KCØRPS | Jim | Sunday only |
| Foxtrot | WBØDKT, KB6OKA | Glen, Edna | |
| Golf | NØJPS | John | |
| Ground Station | N2XGL, K5JK, NoCall | Jeff, Tom, Randy | |
| Hotel | NØNDM | Larry | |
| India | N6BA | Jeff | |