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EOSS-295/296 CU Boulder Gateway to Space and DemoSats - Recap
See pictures and data posted below.
Two 3000g balloons were launched on Saturday, November 9, 2019 from Eaton Middle School. The EOSS-295 launched at 6:54am. EOSS-296 launched at 7:23am.
EOSS-295
- Launch: 13:42:56 UTC 40.5271490,-104.7237760 4880 Ft
- Burst: 15:21:15 UTC 40.2072380,-103.6793790 104023 Ft
- Landing: 15:56:18 UTC 40.0468610,-103.3350910 4767 Ft
EOSS-296
- Launch: 14:22:59 UTC 40.526547,-104.723456 4860 Ft
- Burst: 15:55:54 UTC 40.226835,-103.533459 110842 Ft
- Landing: 16:33:34 UTC 40.048112,-103.168691 4626 Ft
EOSS members can apply for mileage at https://goo.gl/forms/V7r4DKZyEpod5auj1
Recap Gallery:
Original Announcement:
We are go for a Saturday launch from Eaton Middle School! See you there.
The final payload plans have been posted. The predictions were updated at 5:00pm on Friday to match these payload plans.
Two 3000g balloons (or four 1500g balloons if the cloudcover is excessive)
The launch will most likely be Eaton Middle School. Information and maps are available here. If winds shift, there is a possibility that the launch site may have to be moved. Keep watching this website for updates. The predicted flight path is shown here. Scroll down to the correct launch site and click on the GIF file for a picture of the prediction. The prediction updates at approximately 11am each day.
To follow this flight, click on this link: https://track.eoss.org
Additional tracking and observation data area available at http://wxqa.com/eoss295.html
If the cloudcover is greater than 5/10ths, the two Heavy balloons will be split into four 1500g Lite balloons, capable of flying through the cloudcover. The payload plans for these balloons are shown below:
- EOSS-295 Lite (prediction shown as EOSS-795)
- EOSS-296 Lite (prediction shown as EOSS-796)
- EOSS-297 Lite (prediction shown as EOSS-797)
- EOSS-298 Lite (prediction shown as EOSS-798).
Event Date:
Saturday, November 9, 2019 - 00:00
Flight Coordinator:
KE7KCK
Launch Site:
Grid:
Last Chance X=50, Y=20 Test: N40.000 W103.000 Ans:X=81.3 Y=37.9
Flights:
EOSS-295 Heavy
Balloon carrying Gateway to Space team payloads
Balloon Type:
3000g Latex
Parachute:
12 foot Rocketman with wireless release Baker
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 144.905 MHz | KC0D-2 | DF / Remote Release | secondary beacon |
| 144.340 MHz | AE0SS-12 | APRS / Digi EOSSA | primary beacon, timeslotted at 0:27 and 0:57 |
Payload Plan:
EOSS-296 Heavy
Balloon carrying Colorado Space Grant Consortium DemoSat payloads and C-BASE ADS-B beacon
Balloon Type:
3000g Latex
Parachute:
12 foot Rocketman with wireless release Adam
Beacons:
| Frequency | Callsign | Type | Notes |
|---|---|---|---|
| 145.645 MHz | KC0D-1 | DF / Remote Release | secondary beacon |
| 144.340 MHz | AEØSS-13 | APRS / Digi EOSS | primary beacon, timeslotted at 0:07 and 0:37 |
Payload Plan:
FrequencyList:
EOSS Preflight Net @ 8 PM MDT preceding night:
• 449.225 MHz (-5 MHz Offset, 141.3 Hz Tone ) RMHAM Repeater
• 449.450 MHz (-600 KHz Offset, 103.5 Hz Tone) RMRL Repeater
• 146.940 MHz (-600 KHz Offset, 103.5 Hz Tone) RMRL Repeater if the RMHAM machine is down
• 146.640 MHz (-600 KHz Offset, 100.0 Hz Tone) 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 Eaton).
We are approved to use RMHAM DMR “Wide” and the mobile DMR repeater for EOSS 295/296.
https://www.rmham.org/wordpress/dmr-radio-site-information/
Simplex Frequencies:
• 446.100 MHz Balloon #1 Field Simplex (EOSS #295)
• 446.150 MHz Balloon #2 Field Simplex (EOSS #296)
• 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 | W9CN, KB0YRZ | Mike, Chris, Jen | Alpha Team, Downrange 295 |
| Bravo | WA0GEH, KC0D | Marty, Mark | Alpha Backup, Launch, Track 296 |
| Charley | KC0RPS, W0NFW | Jim, George | Launch, Trackers 296 |
| Delta | K0SCC | Stephen | Launch, Tracker 295 |
| Echo | KE7KCK | Tom | Flight Coordinator, Launch, Tracker |
| Foxtrot | N6BA | Jeff | Tracker, SDR Guru 296 |
| Golf | K0JWB, K0NKK | John, Nancy | Trackers, Downrange296 |
| Ground Station | N2XGL, KB0TVJ | Jeff, Russ, Randy | Ground Station, FAA |
| India | KE0GKI | Bernadette | CU, CU ADS-B Payload |
| Whiskey | KD0NRY | Chris | CU Space Grant 295/296 |
| Tango | KC0L, N0LP | John, Nick | Trackers, Downrange 295 |
TR Breakfast:
Breakfast at Limon IHOP at 5:30, leave at 6:15 or Brush McDonalds 6:30
Mike, W9CN will operate as Alpha for the first balloon and Marty will operate for the second balloon. Mark and Marty will NOT go to the ground station to support the payload string prep and balloon fill it is under control.
Looks like clear skies....
Friday 24 hr Predict: 11 mi SE of Akron (EW CR-30 & NS CR-GG) (X=74.0 Y=38.0)