Announcement of EOSS-70/71

LAUNCH DATE: August 2, 2003
LAUNCH TIME EOSS-70: 07:00 Local (13:00 UTC)
LAUNCH TIME EOSS-71: 07:45 Local (13:45 UTC)
LAUNCH SITE: Deer Trail (directions)

EOSS General 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 (pending approval)
    • 448.450 MHz 100 Hz tone (primary EOSS T&R Repeater) Pikes Peak FM Association
    • 146.550 MHz simplex (same simplex for field and launch ops)
  • HF Net during Flight
    • 7228 KHz (see notes about this freq)
    •  starting at 12:15 UTC (6:15am MST)

FRS Frequencies:

  • The Vans will be using Family Radio Service (FRS) channel 8 - 467.5265 MHz
  • Backup FRS channel 1 - 462.5625

EOSS-70 Specifics

  • APRS
    • 145.600 MHz
      • ID = K�ANI-11
      • Cutdown system
      • new system being tested (first flight)
    • 445.975 MHz
      • ID = K�YUK-11
      • Backup APRS
Balloon Manufacturer Kaysam
Balloon Type latex
Balloon Size 3000 gram
Payload 24 Lbs. (approximate)
Free Lift % unknown until fill
Ascent Rate  1200 fpm
Descent Rate  ~ 915 fpm (adjusted to sea level) calculated
Peak Altitude 95,000 ft.
Launch Conditions will appear on recap page

EOSS-71 Specifics

Balloon Manufacturer Kaysam
Balloon Type latex
Balloon Size 3000 gram
Payload 24 Lbs. (approximate)
Free Lift % unknown until fill
Ascent Rate  1200 fpm
Descent Rate  ~ 915 fpm (adjusted to sea level) calculated
Peak Altitude 95,000 ft.
Launch Conditions will appear on recap page

EOSS Grid:

Location Grid X Grid Y
Punkin Center 25 10
Kit Carson 74.5 4.5
Deer Trail 6.5 62.5
Stratton 84 41.5
Predicted Landing 39 25.6

Suggested N�LP Grid Calculator Reference Point:

Since Punkin Center is located on a predefined (scoped by trackers with GPS) latitude Longitude you might consider using that as your reference point.

The lat/long is:

  • 38.852083 decimal degrees north
  • 103.70053 decimal degrees west

And that would be associated with Marty's X/Y coordinates of 25,10 as shown above

Notes:

HF Radio

We try and start an HF net approximately 45 minutes prior to launch on 7.228 MHz. If that frequency is busy we try 7.235 or 7.240 MHz.

Sparky, KA�DPC will be net control

Press Contact

Chris Koehler's press release