EOSS-293 NDIA and Fall STEM Flight - Recap

The flight video is available on YouTube at https://youtu.be/KqLGpO5Tk90

EOSS-293 launched from Deer Trail, CO at 0749 MDT and was recovered approximately 9 miles north of Bethune, Colorado.  It reached an altitude of 92,860 ft.  Landing was at 39.4324, -102.417504.  The landing site was 4.4 miles west of the predicted landing.



Original Announcement: 

One balloon sponsored by National Defense Industrial Association - Rocky Mountain Chapter.  All interested parties may view the balloon position and tracker movements here: track.eoss.org10/11/2019 0900 Update:  Revision C of the payload plan is posted with final weights.  This is a weight change only, so previous printouts are sufficient.  Please see below for changes to comm plan.  The launch site is scheduled for Deer Trail school. Maps guiding you to the location are located here. Prediction updates will start two weeks before the launch and are locatated here.There are tracking and information links shown here http://wxqa.com/eoss293.html .  To follow the flight, click on "map" upper right.  When map appears, click on box upper right and in drop down menu, be sure all boxes are checked.  Then you'll be able to see balloon trajectory prediction, actual path, predicted landing, tracker locations, and other APRS traffic in the area.

Event Date: 
Saturday, October 12, 2019 - 00:00
Flight Coordinator: 
Launch Site: 
Last Chance 10,30 Test: N39.500 W102.500 Ans: 68.1, 13.8

EOSS-293 Lite

Attached is the correct payload plan for the flight on 10/12.

Balloon Type: 
1500g latex
12 ft Rocketman Orange/Green
144.905 MHzKCØD-1DF / Remote Releasesecondary beacon
144.340 MHzAEØSS-13APRS / Digi EOSSprimary beacon, timeslotted at 0:10 and 0:40

EOSS Preflight Net @ 8 PM MDT preceding night:
        • 449.225 MHz (-5 MHz Offset, 141.3 Hz Tone )  RMHAM Repeater  10/3/19:  Repeater in Service
        • 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:
        • 448.450 MHz (-5 MHz Offset, 100.0 Hz Tone) PPFMA repeater (Since we are flying out of Deer Trail).

        Simplex Frequencies:
        • 446.100 MHz Balloon #1 Field Simplex 

        • 446.275 MHz Car to Car drive out Simplex (Please use this to reduce traffic on Field Simplex)

DMR Via the RMHAM DMR System:  https://www.rmham.org/wordpress/dmr-radio-site-information

  • DMR "Wide" has been approved by RMHAM for the full flight.

2M Direction Finding Frequencies:

  • 144.340
  • 144.360
  • 144.905
  • 145.535
  • 145.645
  • 145.710
  • 145.765


Tactical Calls: 
TacticalCall SignNameNotes
AlphaWA0GEH-9, KC0D-9Marty, MarkTracking Coordinators, Downrange
BravoW9CN, KB0YRZ, N0JPS, N6BAMike, Chris, John, JeffTrackers, Alpha Backup, Downrange
DeltaK0SCCStephenLaunch, Tracker
EchoKE7KCKTomFC. Tracker, President
FoxtrotKD0SEMDaveLaunch, Tracker
GolfK0JWB, K0NKKJohn, NancyTrackers
HotelWG0EColinTracker, Sat. Only, Downrange
IindiaKE0GKI, NB4VBernadette, BraedonTracker, CU, ADS-B
TangoKC0LJohnTrackers, Downrange
Gound StationN2XGL-12Jeff, RandyGround Station, SDR, ADS-B
TR Breakfast: 
24-hour Prediction X=76.9, Y=10.0, 8.5 miles NW of Burlington. Launch is 8:30: Breakfast at I-Hop in Limon 7:00, leave at 8:00. Prediction is 80 road miles from Limon, NW of Burlington, so plan accordingly. Comms will be difficult as there are no repeaters in the area. Prepare to use simplex, 446.100 at the recovery area. Snow will have fallen Thursday. Prepare for mud and slippery roads. Bring boots and tow straps. Be sure to update your EOSS SDR Tracker before this flight! Log in and then: 'sudo apt update' and ‘sudo apt upgrade’. I did it today and there were a lot of updates. Below are the suggested configurations for this flight, for your convenience. Let me know if there are any omissions, errors or typos. We will be tracking the ADS-B packets from the CU payload. The ADS-B technology will provide an alternative tracking process to the FAA in the future. Folks in the southern part of the state will be joining in. Welcome. On Saturday morning, go to http://wxqa.com/eoss293.html and click on "map" upper right. When map appears, click on box upper right and in drop down menu, be sure all boxes are checked. Then you'll be able to see balloon trajectory prediction, actual path, predicted landing, tracker locations, and other APRS traffic in the area. Remember the net will be on the Fun Net Friday night, 449.225 at 8:00! See you then.