Recap of EOSS-124/125

photo by Steve Dean

A second after release

LAUNCH DATE: November 10, 2007
LAUNCH TIME: 

  • 7:26:01 MST (14:26:01 UTC) - EOSS-124 -  CU Gateway
  • EOSS-125 -  Bacteriological Sampler

LAUNCH SITE: Windsor, CO (directions)

Pre-flight Prediction and Actual Track

EOSS-124


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
Jagged line = Relative Speed
Prediction and Actual tracks made with Balloon Track
Maps by Google Earth

Map files available in the data section

Launch Site - Windsor
-----------------------
Launch Point: 40.47367� lat.   -104.96233� long.
Grid: X=-14.41 Y=35.57
Ascent Rate: 1400 feet per minute
Descent Rate: 950 feet per minute
Altitude: 4931 feet
Predicted Landing Site
-----------------------
Landing Point: 40.45881� lat.  -103.81421� long.
Grid: X=45.9 Y=34.5
Altitude: 4500 feet
Flight Time: 130 Minutes
Bearing: 90.6� True
Range: 60.3 Mi.
Actual Landing Site
-----------------------
Landing Point: 40.51336� lat.  -103.48605� long.
Grid: X=63.1 Y=38.3
Bearing: 87.5� True
Range: 77.563 Mi.
Difference from Predicted to Actual Landing Site
--------------------------------------------------
Bearing: 77.6� True
Range: 17.64 Mi.

 

EOSS-125 - 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
Jagged line = Relative Speed
Prediction and Actual tracks made with Balloon Track
Maps by Google Earth

Map files available in the data section

EOSS-125 - K0ANI-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
Jagged line = Relative Speed
Prediction and Actual tracks made with Balloon Track
Maps by Google Earth

Map files available in the data section

Launch Site - Windsor
-----------------------
Launch Point: 40.47367� lat.   -104.96233� long.
Grid: X=-14.41 Y=35.57
Ascent Rate: 1400 feet per minute
Descent Rate: 950 feet per minute
Altitude: 4931 feet
Predicted Landing Site
-----------------------
Landing Point: 40.45881� lat.  -103.81421� long.
Grid: X=45.9 Y=34.5
Altitude: 4500 feet
Flight Time: 130 Minutes
Bearing: 90.6� True
Range: 60.3 Mi.
Actual Landing Site
-----------------------
Landing Point: 40.55788� lat.  -103.76705� long.
Grid: X=48.3 Y=41.4
Bearing: 84.3� True
Range: 63.008 Mi.
Difference from Predicted to Actual Landing Site
--------------------------------------------------
Bearing: 19.9� True
Range: 7.275 Mi.

Prediction History is available here (no maps available)

EOSS Flight Day Frequencies:

Global Frequencies

EOSS-124 Balloon Frequencies

  • Beacon
  • APRS
    • 144.340 MHz
      • ID: AE�SS-11
      • DIGI: EOSS
      • Node: BALNOD
      • APRS Time Slotted Every 30 seconds at 0:00 and 0:30
      • Telemetry once a minute
        • power up at 58 seconds past the GPS minute to properly slot telemetry
      • Sample Data

EOSS-125 Balloon Frequencies

  • Beacon
    • 145.600 MHz
      • ID: K�ANI in CW
  • 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
  • 145.600 MHz
  • ID: K�ANI-11

Radio Coverage:

Green, you should be able to work the payload systems.

Red, is the border of the received signal. Red appears jittery because it is depicted topographically. Thus, the red dots on the eastern half of the map but well within the maximum distance show hilly terrain behind (east) which reception is not possible.

This is a generic 95,000 ft ASL coverage map for flights that depart from the vicinity of our launch site. Flight day coverage may vary depending on upper air winds.

Flight Systems:

EOSS-124

Balloon Manufacturer Kaysam
Balloon Type latex
Balloon Size 3000 gram
Payload 25.6 lbs.
Free Lift % calculated at fill
Ascent Rate 554.2 fpm average
Descent Rate 1074.6 fpm average below 10K ft.
Parachute 10 ft
Peak Altitude 97,942.91 ft. ASL
Launch Conditions ??

 

EOSS-125 

Balloon Manufacturer Kaysam
Balloon Type latex
Balloon Size 3000 gram
Payload 26.5 lbs.
Free Lift % calculated at fill
Ascent Rate 677.1 fpm average
Descent Rate 1330.1 fpm average below 10K feet
Parachute 10 ft
Peak Altitude 94,983.92 ft. ASL
Launch Conditions determined at launch

 

Payload Configuration:

Tracking and Recovery Info:

Grid

Location X Y
Rt 71 & 14 (West Intersection) 53 45
Touchdown (see Prediction Page)

 

Tactical Callsigns

Tactical Callsign Name Notes
Alpha WG0E and KB0YRZ Colin and Chris Tracking and Recovery Coordinator
Bravo KC0RPS and N0SSW Jim and Harlan  
Charlie K0SCC Steve  
Delta WB0DKT,KG6HXM, KC0ZIE,  WB6DKF Glenn,  Sam, Darren, and Heather and Steve Dean  
Echo AC7FY Clint  
Hotel KC0UUO and N0NDM Rob and Larry  
India KC0WWJ and K2CUI Brian and Michaela  
Juliet AE0SS Nick Ground Station

 

Internet Gateway Stations:

as seen on Findu.Com

For AE0SS-11 - EOSS-124

  • K0UT - Bill Beach, Ft. Collins, CO
  • KC0D-3 - Mark Patton, Foxfield, CO (new callsign)
  • N0EB-1 - Richard Beggs, Thornton, CO
  • N0NDM - Larry Noble (Rob Wright??), Mobile Tracker
  • N0PSJ - Christopher Holmes, Arvada, CO
  • KB0TVJ-3 - Russ Chadwick, Boulder, CO

For KC0YA-11 - EOSS-125

  • K0UT - Bill Beach, Ft. Collins, CO
  • KC0D-3 - Mark Patton, Foxfield, CO (new callsign)
  • N0PSJ - Christopher Holmes, Arvada, CO
  • N0NDM - Larry Noble (Rob Wright??), Mobile Tracker
  • KB0TVJ-3 Russ Chadwick, Boulder, CO
  • N0EB-1 - Richard Beggs, Thornton, CO

For K0ANI-11 - EOSS-125

  • KB0TVJ-4 - Russ Chadwick, Boulder, CO
  • KC0D-3 - Mark Patton, Foxfield, CO (new callsign)

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 28 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.

Experimental Systems

EOSS-124 - CU Gateways Program

no detailed info

EOSS-125 - Atmospheric Bacteriological Sampler


The Bacteriological Samper
L to R Robert Lossing and Co-Investigator (???) fills here folks - Thanks
 

Overview

by Mike Manes, W5VSI

The purpose of this experiment is evaluate the DNA of any bacterial species appearing in the upper atmosphere.  The sampler comprises a 1 litre/min vacuum pump which draws ambient air in though sterilized 1/2" iron pipe and solenoid valve, then through a 0.2 micron filter. The pump's exhaust is vented to the exterior of the 19 lb package.

Prior to launch, the pipe is heated to over 130C using AC power, and during ascent by battery power.  This destroys any low-altitude contaminants.

At 30,000 ft MSL, a baroswitch closes causing the heater to be turned off, the valve to open and the pump to run.  A timer shuts everything down 60 minutes after the sample run started, or at about 90,000 ft, assuming a 1000 fpm rate of ascent.  Once shut down, the solenoid valve prevents contaminants from entering the filter.  On recovery, the filter is removed, sealed and placed on dry ice until it can be opened in the sterile environment of the the lab at CU.

note: customers are welcome to submit detailed synopses of their flights or web links to their own web sites.

Photos

Collage of student teams and their signed thanks to EOSS


CLICK HERE or on the collage to view full rez version.

Launch Site

Recovery Area

EOSS-124

EOSS-125

  • by Chris Krengel, KB0YRZ

Audio

Video

 

Data

EOSS-124 and EOSS-125

Text

EOSS-124

Text

Spread Sheets

Mapping Files

Charts

  • none yet

EOSS-125

Text

Spread Sheets

Mapping Files

Charts

  • none yet