Flight Announcement for EOSS-171/172

Flight Coordinator: Doug Gentges - N0IX (n0ix@eoss.org)

LAUNCH DATE: November 6th, 2011 (wx delay +6 day)
LAUNCH TIMES:

  • EOSS-171 06:50 am MST (13:50 UTC)
  • EOSS-172 07:10 am MST (14:10 UTC)

LAUNCH SITE: Windsor, CO (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
    • Repeaters 
      • 449.450 MHz (103.5 Hz Tone) RMRL Machine
      • 146.775 MHz -offset (114.8 Hz Tone) Cheyenne north, linked to Albin repeater to east
      • 147.165 MHz +offset (114.8 Hz Tone) Albin repeater, east of Cheyenne and linked back to the Cheyenne machine.
      • 146.970 MHz -offset MHz no tone Sydney, NE
    • Field Simplex Frequencies  
      • 446.100 MHz simplex for field recovery operations
        • Note: Some radios insist on incorrectly placing a negative 5 MHz offset when selecting frequencies from the simplex portion of the 70 CM band. Check your radio and if this is the case. Consider programming in this simplex frequency to a memory channel as some radios have demonstrated the annoying habit of re-inserting the offset if you momentarily shift to a repeater then return to the simplex freq. Check the operation of your radio on this simplex freq to be ready for however your radio behaves.
      • 146.550 MHz Backup field simplex
    • 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.
    • HF
      • 3.810 MHz USB
  • Launch Site Simplex
    • 146.550 MHz

 

EOSS-171 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-172 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

 

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

Various Online Live Tracking Pages


Flight Systems: 

EOSS-171

Balloon Manufacturer Totex
Balloon Type latex
Balloon Size 3000 g
Neck Load ?? lbs.
Neck Lift ?? lbs.
Ascent Rate 1329 fpm estimated
Descent Rate 950 fpm estimated
Parachute 10 ft.
Peak Altitude 95,000 ft.
Launch Conditions determined at launch

 

EOSS-172

Balloon Manufacturer Totex
Balloon Type latex
Balloon Size 3000 g
Neck Load ?? lbs.
Neck Lift ?? lbs.
Ascent Rate 1329 fpm estimated
Descent Rate 950 fpm estimated
Parachute 10 ft.
Peak Altitude 96,000 ft. ASL estimated
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

  • Denny's exit 7 on I-25 just south of Cheyenne
  • 6:00 am MST depart to recovery activity

 

ALPHA News

Wear warm clothes and good boots. Fill up with gas!

 

Grid   

Location

Grid X

Grid Y

West Intersection of CR 71 and CR 14 25 15
Test Coordinates   41.25� N  x  -103.5� W missed 58.9

   

 

Tactical Call Signs 

Tactical

Callsign

Name

Notes

Alpha

WA0GEH & K5JFD

Marty & John

Tracking and Recovery Coordinator

Bravo

K0SCC

Steve

Tracker

Charlie

KG6HXM, KC0ZIE

Sam, Darren

Tracker, Big Blue Bus

Delta

KB0YRZ

Chris

Tracker +1

Echo

N0IX

Doug

Flight Coordinator & Tracker

Foxtrot

withdrawn

 

Tracker

Golf moved to alpha    

Hotel

KB0UBZ

Ben

Tracker +1

India

N0NDM

Larry

Launch Coordinator, Tracker Pro Tem