Flight Announcement for EOSS-161/162

Flight Coordinator: Jim Langsted (kc0rps@eoss.org)
 

LAUNCH DATE: April 2nd, 2011 (wx delay +1 day)
LAUNCH TIME:

  • EOSS-161: 6:50 am MDT (12:50 UTC)
  • EOSS-162: 7:10 am MDT (13:10 UTC)

LAUNCH SITE: Windsor, Colorado (Click Here for directions)


EOSS Flight Day Frequencies:

Tracking and Recovery Frequencies

  • Preflight Net:
    • 147.225 MHz 8 pm MDT preceding night
    • 146.640 MHz will serve as a backup frequency
  • Tracking and Recovery Operations
    • 449.450 MHz RMRL (103.5 Hz Tone)
    • 145.295 MHz (100 Hz) (possible backup repeater in Sterling - listen to Alpha for switch info and possible PL tone info)
    • 145.400 MHz (123 Hz Tone) Akron KB0VJJ (another possible alternate
    • Field Simplex Frequencies
      • 446.050 MHz simplex (EOSS-161)
      • 446.100 MHz simplex (EOSS-162)
      • 446.150 MHz simplex (backup)
      • Two balloons close to each other on the ground may require these separate simplex frequencies.
  • Tracking and Recovery Testing UHF Simplex Frequencies
    • 446.050 MHz
    • 446.100 MHz
    • 446.150 MHz
  • Repeater Coverage Pages - Listings of all repeaters available in the expected flight areas.
    • There may be FRS operations see THIS PAGE for a list of channel numbers and their associated UHF Frequencies.

 

EOSS-161 Balloon Payload Frequencies

Beacons

  • 147.555 MHz
    • CW ID: AE0SS

 

APRS

  • 144.340 MHz
    • 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

 

EOSS-162 Balloon Payload Frequencies

Beacons

  • 145.600 MHz
    • CW ID: W5VSI

 

APRS

  • 144.340 MHz
    • ID: KC0YA-11
    • DIGI: EOSS
    • Node: BALND2
    • APRS Time Slotted Every 30 seconds at 0:15 and 0:45
      • power up at 13 seconds past the GPS minute to properly slot telemetry
    • Telemetry once a minute
    • Sample Data
  • GPS Logger K0SCC (no transmitter)

     

Video Might Be available, check http://www.eoss.tv

Various Online Live Tracking Pages


Flight Systems: 

EOSS-161 

Balloon Manufacturer Totex
Balloon Type latex
Balloon Size 3000 g
Neck Load 20.1 lbs.
Neck Lift 24.1 lbs.
Ascent Rate 1329 fpm estimated
Descent Rate 950 fpm estimated
Parachute 10 ft.
Peak Altitude determined after flight
Launch Conditions determined at launch

 

EOSS-162 

Balloon Manufacturer Totex
Balloon Type latex
Balloon Size 3000 g
Neck Load 19.2 lbs.
Neck Lift 23.1 lbs.
Ascent Rate 1329 fpm estimated
Descent Rate 950 fpm estimated
Parachute 8.5 ft.
Peak Altitude determined after flight
Launch Conditions determined at launch

 


Payload Configuration: 


Payload Experiment Designer

Experimenters are welcome to submit websites for linking or overviews which I will post on a page on the EOSS website.


Internet Gateway Stations:

Future I-Gaters:

EOSS is always in need of I-Gate stations. 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.

Your Log Files

Our technical committee members would also request you open a log file and record all the packets you hear and forward onto APRS-IS. Whenever there is a technical failure of a package it is always helpful to have the most complete dataset possible to attempt to determine the cause of failure and possible fixes. After a flight send your data files to me (webmaster) and I will distribute them to the appropriate payload builders. They appreciate these logs even if all goes fine during a flight.


Tracking and Recovery  

Breakfast

  • McDonalds in Ft. Morgan (Google Map)
    • Meet at 05:30
    • Head into the field at 06:00

 

Grid

Location Grid X Grid Y
Hwy 14 & 71 West 80 55
Grid Test Point - 41� 15'   103� 45' 76.2 98.9

 

Tactical Call Signs

Tactical

Call sign

Name

Notes

Alpha

KB0YRZ, KB0UBZ

Chris and Ben

Tracking and Recovery Coordinator

Bravo

WA0GEH, KC0D

Marty and Mark

Tracker

Charlie

K0SCC

Steve and Parker (Daryl a possible)

Tracker

Delta

W9CN, KD0JIT

Mike and Miles

Tracker

Echo

W0CBH

Benjie and Rosie

Tracker

Foxtrot

KB0LP

Dave

Tracker

Golf

KC0ZIE, K0JEF, KD0NKH

Darren, Jeff and Jordan

Tracker

Hotel

KC0UUO, N0NDM Rob and Larry Trackers and Launch Operations