Announcement of EOSS-76


LAUNCH DATE: May 1, 2004
LAUNCH TIME: 11:00 am (17:00 UTC)
LAUNCH SITE: Deer Trail, Co (Directions)

EOSS Frequencies:

  • Preflight Net:
    • 147.225 MHz 8 pm MDT preceding Friday night
      • 145.160 MHz simulcast in the Springs
    • 146.640 MHz will serve as a backup frequency
  • Tracking and Recovery Operations
    • 448.450 MHz PPFMA Repeater (100 Hz tone)
    • 146.550 MHz simplex (same simplex for field and launch ops)
    • There may be FRS operations see THIS PAGE for a list of channel numbers and their associated UHF Frequencies.
    • 7.228 MHz HF
  • Beacon
    • 147.555 MHz
    • ID: W5VSI in CW
  • APRS
    • 144.340 MHz (primary APRS)
    • ID: K�YUK-11
  • ATV
    • 426.250 MHz
    • ID: W5VSI

University of Kentucky Frequencies

  • APRS
    • 441.000 MHz (primary)
    • 145.600 MHz (backup)
    • ID: KG4YLM-11
  • Telemetry
    • 445.975 MHz
    • ID: KG4YLM-12
  • Beacon
    • 146.505 MHz
    • CW ID: KG4YLM
  • ATV
    • 922 MHz AM

Flight Systems:

Balloon Manufacturer Kaymont
Balloon Type latex
Balloon Size 3000 gram
Payload unknown
Free Lift % calculated at fill
Ascent Rate 1000 fpm estimated
Descent Rate  900 fpm estimated
Parachute 10 ft. diameter
Peak Altitude determined after flight
Launch Conditions determined at launch

Payload Configuration:

Contained in the PDF below, the layout of the payload train.

EOSS Grid:

Location Grid X Grid Y
Punkin Center 30 28
Yoder 2 27.5
Karval 39 20
Junct. Hwy 86 and I-70
Exit 352 I-70
23 60
Matheson 15.5 50.5
Launch Site 11 80.7
Predicted Landing (fri night) 37.2 24.1

Tactical Callsigns:

Tactical callsign(s) name(s)
alpha WA0GEH Marty (T&R coordinator)
bravo W0CBH Benjie
charlie KB0YRZ & KB0UBZ Chris and Ben
delta N0PUF Dan
echo N0NDM & N5LPZ Larry and Mike
foxtrot K0JLZ & K0AEM Jim and Richard
golf KA0ULN Russ
hotel KI0DZ Mary Frances
india N0LP Nick (Ground Station)
kilo KG4YLM Bill (U of KY)



University of Kentucky's ambitious program to develop a glider for use on Mars requires more than a short paragraph here so, visit their Big Blue Site, to learn more about the program.

HF Radio

Usually starts 30 minutes

Who Can Monitor

If you are within the green shaded area, you should be able to monitor the APRS data