Announcement of EOSS-103/104

LAUNCH DATE: 22-Apr-2006
LAUNCH TIME: 7:30 am (13:30 UTC) second balloon 45 minutes later
LAUNCH SITE: Windsor, CO (Driving Directions)

EOSS Frequencies:

Payload Change (April 22,2006, 06:54 MDT)

Both two meter APRS stations are now time slotted on the same frequency.

Global Frequencies

• Preflight Net:
  • 147.225 MHz 107.2 Hz tone
  • 8:00 PM Night before flight
• Tracking and Recovery Operations
  • 449.450 MHz RMRL Repeater (103.5 Hz Tone)
  • 146.550 MHz simplex (for both field ops and the launch site)
  • Repeater Coverage Pages - Listings of all repeaters available in the expected flight areas.
  • 7.228 MHz + QRM HF (sporadic usage)

Balloon Frequencies

EOSS-103

• Beacon (Moved from 104)
  • 147.555 MHz
    • ID: AEØSS in CW
    • Tracking Tone then CW ID
• APRS
  • 144.340 MHz
    • ID: KC0YA-11
    • DIGI: EOSS
    • Node: BALND2
    • APRS Time Slotted Every 30 seconds at 0:15 and 0:45
    • Telemetry once a minute

EOSS-104

• Beacon (Moved from 103)  
  • 445.975 MHz
    • ID: K0ANI-11
    • Tracking Tone then CW ID then APRS
    • APRS
      • 144.340 MHz (Payload Train)
        • ID: AEØSS-11
        • DIGI: EOSS
        • Node: BALNOD
        • APRS Time Slotted Every 30 seconds at 0:00 and 0:30
        • Telemetry once a minute
        • Sample Data

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  Flight Systems:

  EOSS-103

  Balloon Manufacturer	Kaysam
  Balloon Type	latex
  Balloon Size	3000 gram
  Payload	unknown at present ~ 22.0 lbs
  Free Lift %	calculated at fill
  Ascent Rate	1000 fpm estimated
  Descent Rate	910 fpm estimated
  Parachute	10 ft
  Peak Altitude	determined after flight
  Launch Conditions	determined at launch

   

  EOSS-104

  Balloon Manufacturer	Kaysam
  Balloon Type	latex
  Balloon Size	3000 gram
  Payload	unknown at present ~ 23.1
  Free Lift %	calculated at fill
  Ascent Rate	1000 fpm estimated
  Descent Rate	910 fpm estimated
  Parachute	10 ft
  Peak Altitude	determined after flight
  Launch Conditions	determined at launch

   

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  Payload Configuration:

  • Payload_Plan_103-104a.pdf

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  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:

  Guys, 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.

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  Tracking and Recovery Info:

  Grid and Tactical Assignments as of April 21, 2006 19:30 MDT

  Grid

  Location	X	Y
  West Junction of SR-14 and SR-71	45	35
  NE-Peetz	75	59.3
  SE-Otis	82.6	3
  SW-Roggin	8	4.5
  Launch Site (Windsor)	-22.43	25.57
  Touchdown (see Prediction Page)

   

  Tactical Callsigns

  Tactical	Callsign	Name	Notes
  Alpha	N0NDM	Larry	Tracking and Recovery Coordinator
  Bravo	WA0GEH, KI4GYZ	Marty and Art
  Charlie	W0CBH, WG0E	Benjie and Colin
  Delta	KB0UBZ, KB0YRZ	Ben and Chris
  Echo	KC0RPS, W0NFW	Jim and George

   

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  Notes:

  Our Customer

  Colorado University Gateway program and Demosat program.

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

   

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  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.