Recap of EOSS-155

03/02/2012 15:50 (CDT): Pretty Complete

by Doug Gentges, N0IX

Gathering at the touchdown spot

Flight Coordinator: Rob Wright (kc0uuo@eoss.org)

LAUNCH DATE: July 31th, 2010
LAUNCH TIME: 7:10 am MDT (13:10 UTC)
LAUNCH SITE: Genoa, Colorado (Click Here for directions)  

Pre-flight Prediction and Actual Tracks

E0SS-155


Blue = Actual Track
Green = Predicted Ascent Phase
Red = Predicted Descent Phase
Map made with MapPoint
 Prediction made with Balloon Track

 


Looking west southwest
Green Track = Ascent
Red Track = Descent
Prediction and Actual tracks made with Balloon Track
Maps by Google Earth

Map Files available in the Data Section below

Launch Site - Genoa CO
-----------------------
Launch Point: 39.27882� lat.   -103.48993� long.
Grid: X=40.77 Y=33.11
Ascent Rate: 1328 feet per minute
Descent Rate: 950 feet per minute
Altitude: 5589 feet
Predicted Landing Site
-----------------------
Landing Point: 39.33194� lat.  -103.38402� long.
Grid: X=46.4 Y=36.8
Altitude: 4500 feet
Flight Time: 128 Minutes
Bearing: 57.0� True
Range: 6.7 Mi.
Actual Landing Site
-----------------------
Landing Point: 39.29364� lat.  -103.95787� long.
Grid: X=15.8 Y=34.1
Bearing: 272.5� True
Range: 25.03 Mi.
Difference from Predicted to Actual Landing Site
--------------------------------------------------
Bearing: 268.0� True
Range: 28.545 Mi.
  • Final Pre-Flight Prediction is available here
  • Prediction History is not available

EOSS Flight Day Frequencies:

Tracking and Recovery Frequencies

  • Preflight Net:
    • 147.225 MHz 8 pm MDT preceding Saturday night
      • 145.160 MHz simulcast in the Springs
    • 146.640 MHz will serve as a backup frequency
  • Tracking and Recovery Operations
    • 147.060 MHz (103.5 Hz Tone) Genoa Repeater (Primary)  
    • 448.450 MHz PPFMA (100 Hz Tone) (Secondary)
    • 449.450 MHz RMRL (103.5 Hz Tone)
    • 447.575 MHz CRA (107.2) IRLP Link to the Genoa repeater
    • 146.550 MHz simplex (same simplex for field and launch ops)
    • 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.
    • 7.228 MHz HF

EOSS-155 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

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

 

Flight Systems:  

EOSS-155 

Balloon Manufacturer Totex
Balloon Type latex
Balloon Size 3000 g
Neck Load 9260 g
Neck Lift 11076 g
Ascent Rate 1329 fpm estimated
Descent Rate 950 fpm estimated
Parachute 10 ft.
Peak Altitude 99,896 ft ASL
Launch Conditions determined at launch

 

Payload Configuration:  

Payload Experiment Designer

CU Space Grant

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

Internet Gateway Stations:

as seen on Findu.Com

EOSS-155, AE0SS-11

  • KC0D-3 - Mark Patton, Foxfield, CO
  • N0EB-1 - Richard Beggs, Thornton, CO
  • N0PSJ - Christopher Holmes, Arvada, CO

EOSS wishes to express our sincere appreciation to the stations above who iGated the balloon APRS telemetry onto the internet. Did you know I publish predictions for i-gates? I keep a list of everyone who has ever i-gated an EOSS balloon flight. You're all in the list so if you're wondering when the balloon will pop up over your horizon, check out this page for future flights.  Currently predictions are being made for 29 i-gates.

We are relying heavily on real time position information available on the net to allow the FAA controllers to have up to the minute location data to assist them in air traffic control.

Redundant stations for the balloon iGating provide excellent coverage. If you are able to iGate we invite you to join the Internet Gateway Team. Contact me (webmaster@eoss.org) to be put in touch with the coordinator. By joining the team, you are giving peace of mind to the iGate coordinator for that flight. He knows you'll be there and he can rely on you.

Naturally, anyone can iGate data onto the net and even if you aren't a member of the team we will welcome your contribution to the internet based tracking effort. If you callsign appears on the findu.com log, you'll be shown as a contributing station as those above are.

Having more than one station covering each APRS beacon means that should a station drop out momentarily, the others can often maintain the data flow.

Thanks again guys! The FAA (and EOSS) are very grateful for your assistance in this endeavor.

Future I-Gaters:

Check out the EOSS I-Gate page for information on how to participate and why we need you.

Current I-Gate Stations:

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 or maximum elevation, 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.

Tracking and Recovery   

Breakfast

Changed to McDonalds in Limon, CO

 

Grid

Location

Grid X

Grid Y

Last Chance

35

65

Grid Test,  39.5 � N latitude ,  -103.75 � W longitude 26.7 48.5

 

Tactical Call Signs

Tactical

Callsign

Name

Notes

Alpha

WG0E

Colin

Tracking and Recovery Coordinator

Bravo

WA0GEH & KC0ZIE

Marty & Darren

Tracker

Charlie

W9CN & KD0JIT

Mike & Miles

Tracker

Delta

N0IX

Doug

EOSS.TV

Echo

KC0UUO

Rob

Flight Coordinator & Tracker

Foxtrot

KB0YRZ

Chris

Tracker

Golf

N0NDM & W0CBH

Larry & Benjie

Launch Coordinator

 

Text Recaps

none

Photos

Launch Site

Recovery Site

Audio

none

Video

none

Data

EOSS-155, AE0SS-11

Text

 Spread Sheets

Mapping Files