Announcement of EOSS-111

LAUNCH DATE: 5-August-2006
LAUNCH TIME: 7:30 am CDT (12:30 UTC)
LAUNCH SITE: Hutchinson, KS or thereabouts

For more detail about this flight concerning possible launch sites etc. see the Great Plains Super Launch website.

EOSS Frequencies:

Global Frequencies

Balloon Frequencies

  • Beacon
  • ATV
    • 426.250 MHz
      • ID: AE0SS (audio subcarrier)
  • APRS
    • 144.340 MHz (Payload Train)
      • ID: AE�SS-11
      • DIGI: EOSS
      • Node: BALNOD
      • APRS Time Slotted Every 30 seconds at 0:00 and 0:30
        • power up at 58 seconds past the GPS minute to properly slot telemetry
      • Telemetry once a minute
      • Sample Data

Flight Systems:

Balloon Manufacturer Kaysam
Balloon Type latex
Balloon Size 1200 gram
Payload 11 lbs
Free Lift % calculated at fill
Ascent Rate 1100 fpm estimated
Descent Rate 910 fpm estimated
Parachute 10 ft
Peak Altitude determined after flight
Launch Conditions determined at launch


Payload Configuration:


Internet Gateway Stations:

Future I-Gaters:

Check out the EOSS I-Gate page for information on how to participate and why we need you.

Current I-Gate Station:

If you are present at your iGate during the flight try and monitor the tracking and recovery frequency. The ground station likes to check the frequency prior to launch to find out if any stations are out there ready to igate the traffic onto the net for the FAA to monitor.

The prediction program used to determine the track of the balloon prior to flight can now output a prediction for the Rise, Closest Approach, and Set of the balloon for each of your stations. I have posted a prediction page for stations that I have been able to discover geographic coordinates. See the I-Gate prediction page for an example. The page will not be updated daily, however, it will be updated the evening prior to flight for I-gate planning purposes.

I have often been asked by iGaters when they should expect to either start receiving signals (AOS) or expect to see those signals disappear (LOS). This prediction page should answer all those questions for you.

Tracking and Recovery Info:

No postings on this as we're all away from the home area (and my posting tools)


Our Customer

EOSS. We're attending the GPSL 2006 event.

note: customers are welcome to submit detailed synopses of their flights or web links to their own web sites.


Radio Coverage:

Map made with Radio Mobile Deluxe

This is the approximate coverage for a flight launched from Windsor, Colorado once it reaches 95,000 feet ASL. Red marks a signal below .25 uV

CLICK HERE for a general discussion on radio procedures during the ascent and descent phases of a balloon flight.