Recap Maps | Frequencies | Flight Systems | Payload Config | I-Gates | T & R | Text Recaps | Photos | Audio | Video | Data | Charts
03/27/2013 13:50 (CDT): minor edits
Flight Coordinator: Jim Langsted - KC0RPS
LAUNCH DATE: April 14th, 2012
LAUNCH TIMES: 07:09 am MDT (13:09 UTC)
LAUNCH SITE: Windsor, CO (Click Here for directions)
E0SS-174 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
Above Map Files available in the Data Section below
Launch Site - Windsor ----------------------- Launch Point: 40.47367� lat. -104.96233� long. Grid: X=12.64 Y=.57 Ascent Rate: 1329 feet per minute Descent Rate: 950 feet per minute Altitude: 4931 feet Predicted Landing Site ----------------------- Landing Point: 41.51849� lat. -104.10326� long. Grid: X=56.9 Y=72.7 Altitude: 4500 feet Flight Time: 128 Minutes Bearing: 31.5� True Range: 84.9 Mi. Actual Landing Site ----------------------- Landing Point: 41.34421� lat. -104.1936� long. Grid: X=52.3 Y=60.7 Bearing: 33.5� True Range: 72.261 Mi. Difference from Predicted to Actual Landing Site -------------------------------------------------- Bearing: 201.3� True Range: 12.91 Mi.Final Pre-Flight Prediction is available here
Prediction History is available here
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
- South End of Recovery
- 449.450 MHz (103.5 Hz Tone) RMRL Machine
- 447.175 MHz (186.2 Hz Tone) WA2YZT Repeater System - backup and testing
- North End of Recovery (Wyoming)
- 146.775 MHz (114.8 Hz Tone) Cneyenne (Linked to Albin)
- 147.165 MHz (114.8 Hz Tone) Albin (Linked to Cheyenne)
- 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 (possible as of this update)
- 3.810 MHz LSB
- 7.235 MHz LSB
- Launch Site Simplex
- 146.550 MHz
EOSS-174 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
Various Online Live Tracking Pages
EOSS-174
Balloon Manufacturer | Totex |
Balloon Type | latex |
Balloon Size | 3000 g |
Neck Load | 22.1 lbs. |
Neck Lift | 26.4 lbs. |
Ascent Rate | 1329 fpm estimated |
Descent Rate | 950 fpm estimated |
Parachute | 10 ft. |
Peak Altitude | 97,000 ft. estimated |
Launch Conditions | determined at launch |
SGC Demosats, Metro State
Experimenters are welcome to submit websites for linking or overviews which I will post on a page on the EOSS website.
as seen on Findu.Com (listed alphabetically)
EOSS-174, AE0SS-11
- K0ANI - Larry Cerney, Denver, CO
- KB0TVJ - Russ Chadwick, Launch Site
- KB0TVJ-4 - 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
- N0SPB - Shaun Bryant, Commerce City, CO
- N0SPB-10 - Shaun Bryant, Tracking and Recovery Mobile iGate, mostly in Albin WY for the flight.
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.
It looks like we will be heading to Wyoming for this recovery. Bring your passports!
Please note the Cheyenne and Albin repeater frequencies in the Cheyenne area for our recovery frequencies.
We will formally, under net control, move to repeater frequencies
Fill up with gas! Wear warm clothes and good boots. Bring tow ropes!
Only one, well-laden balloon this flight.
Greet Lia Mathews, the new coordinator for Colorado Space Grant.
A Glider with cell-phone messaging connections will be released 50 minutes into the flight. Trackers may
try recovery efforts after our payload is recovered. More later.
Location
Grid X
Grid Y
West Intersection of CR 71 and CR 14 80 10 Test Coordinates 41.25� N x -104.5� W 37.3 54.1
Tactical
Callsign
Name
Notes
Alpha WA0GEH Marty Tracking and Recovery Coordinator Bravo K0SCC Steve, Daryl and Parker Tracker, Driving Pro, Optical Tracking Asset, Food and Beverage Charlie KC0RPS, N0NFW, N0SSW Jim, George, Harlan Flight Coordinator and Tracker Delta KB0YRZ Chris Tracker Echo none Fox KC0UUO, KD0QYY,N0IX, KD0RPF Rob and KJ, Doug, Alan Presidential Timber and First Lady and two Trackers Golf N0NDM Larry Launch Coordinator, Tracker
none
Launch Site
- by Prof. Lopez
- By Darren Kalmbach, KC0ZIE
- by Nick Hanks, N0LP
- by Robert Morris
Recovery Site
- by Prof. Lopez
- by Jim Langsted, KC0RPS
recorded but not posted
EOSS-174 Launch |
Nick Hanks, N0LP |
EOSS-174, AE0SS-11
Text
- eoss-174_ae0ss-11_findu.txt - Findu Log
- eoss-174_ae0ss-11_findu_ts.txt - Findu Log with findu timestamps
- eoss-174_ae0ss-11_airborne.txt - Airborne only from KPC3 Log
- eoss-174_ae0ss-11_kpc3.log.txt - Onboard KPC3 Log with annotation by w5vsi.
Spread Sheets
- eoss-174_ae0ss-11_Flight_Data.csv - airborne only Log ripped to spreadsheet format
Mapping Files
- eoss-174_ae0ss-11_recap.ptm - MapPoint file of the above recap
- EOSS-174_track.kml - Google Earth Track of the flight
- EOSS-174_predict_track.kml - Google Earth Track of the predicted flight path