Flight Announcement for EOSS-171/172

03/27/2013 13:50 (CDT): minor edits

Student Teams with their Payloads

Chris Koehler, KD0NRY

 

Burst of EOSS-172

Metro State Payload Team

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)

Pre-flight Prediction and Actual Tracks

E0SS-171 AE0SS-11


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

 


Green Track = Ascent
Red Track = Descent (NO DESCENT TRACK)
Prediction and Actual tracks made with Balloon Track
Maps by Google Earth

E0SS-172 KC0YA-11


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

 


Green Track = Ascent
Red Track = Descent (NO DESCENT TRACK)
Prediction and Actual tracks made with Balloon Track
Maps by Google Earth

Above Map Files available in the Data Section below

Launch Site - Windsor
-----------------------
Launch Point: 40.47367� lat.   -104.96233� long.
Grid: X=-42.47 Y=5.57
Ascent Rate: 1329 feet per minute
Descent Rate: 950 feet per minute
Altitude: 4931 feet
Predicted Landing Site
-----------------------
Landing Point: 41.29757� lat.  -103.19481� long.
Grid: X=49.7 Y=62.5
Altitude: 4900 feet
Flight Time: 127 Minutes
Bearing: 57.8� True
Range: 108.4 Mi.
Actual Landing Site
-----------------------
Landing Point: 41.1433� lat.  -103.35783� long.
Grid: X=41.4 Y=51.8
Bearing: 60.6� True
Range: 95.751 Mi.
Difference from Predicted to Actual Landing Site
--------------------------------------------------
Bearing: 218.5� True
Range: 13.609 Mi.

Final Pre-Flight Prediction is available here
Prediction History is available here

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:

as seen on Findu.Com (listed alphabetically)

EOSS-171, AE0SS-11

  • KB0TVJ - Russ Chadwick, Boulder, CO
  • KC0D-3 - Mark Patton, Foxfield, CO
  • N0EB-1 - Richard Beggs, Thornton, CO
  • N0IX-12 - Doug Gentges, Tracking and Recovery Mobile iGate
  • N0LP - Nick Hanks, Ground Station

EOSS-172, KC0YA-11

  • KB0TVJ - Russ Chadwick, Boulder, CO
  • KC0D-3 - Mark Patton, Foxfield, CO
  • N0EB-1 - Richard Beggs, Thornton, CO
  • N0IX-12 - Doug Gentges, Tracking and Recovery Mobile iGate
  • 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 30 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

  • 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 and Parker

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

 

Text Recaps

Photos

Launch Site

 

Recovery Operations

Metro State Photos

Audio

recorded, not posted

Video

 

EOSS-171 Lift off

by Nick Hanks, N0LP

 

 

EOSS-172 Lift off

by Nick Hanks, N0LP

 

Metro State Recap Video

by Zyola T. Mix

 

 

Data

EOSS-171 AE0SS-11

Text

 Spread Sheets

Mapping Files

Dragged Path Files

EOSS-171 was dragged by its parachute approximately 0.2 miles from the landing point to its final resting point. Here are the data files.

 

EOSS-172, KCYOA-11

Incomplete Data, Antenna Torn Loose

Text

 Spread Sheets

Mapping Files