EOSS-308 Colorado Space Grant Consortium DemoSats - Recap

A single 3000g balloon was launched at 0644 on April 3, 2021 from Deer Trail School. The balloon reached 98 kft and landed northwest of Arriba, Colorado.

 

Original Announcement: 

03-06-2021EOSS-309 revised to Payload Plan Rev B

03-26-2021All payload plans revised to Rev C

04-01-2021Heavy and Lite balloon combined, all Payload Plans revised to Rev D

04-02-2021WE ARE GO FOR LAUNCH

NOTE: WE WILL BE LAUNCHING ONE HEAVY OR THREE LIGHT BALLOONS.

One 3000g balloon, or three 1500g balloons carrying COSGC DemoSats from multiple Colorado programs and virtual balloon payload workshop "teaching payloads".  Pre-flight prediction can be found here.  Live tracking on day of flight can be found here.

In case of cloud cover we will launch three 1500g balloons, configured as follows:

Event Date: 
Saturday, April 3, 2021 - 00:00
Flight Coordinator: 
KCØRPS
Launch Site: 
Grid: 
Grid location is Punkin Center X 20 Y 30 Grid Test: N 39.000 • W 103.000 57.5 Y 40.3 308 Predict: 4 mi N of Seibert (NS CO-59 & EW CR-AA) (X 64.3 Y 65.6) 709 Predict: 3 mi NW of Seibert (NS CR-13 & EW CR-X) (X 62.1 Y 62.9)
Flights: 

EOSS-308 Heavy

A 3000g balloon to carry COSGC DemoSats and Virtual Workshop teaching payloads

Balloon Type: 
Totex 3000g Latex
Parachute: 
12' Rocketman
Beacons: 
FrequencyCallsignTypeNotes
144.905 MHzKC0D-3DF / Remote ReleaseSecondary Beacon
144.340 MHzAE0SS-12APRS / Digi EOSSAPrimary Timeslotted at 0:24 & 0:54
Payload Plan: 

EOSS-309 Lite

One 1500g balloon carrying virtual workshop payloads from multiple COSGC universities and community colleges.

Balloon Type: 
Totex 1500g Latex
Parachute: 
12' Rocketman
Beacons: 
beacons
FrequencyCallsignTypeNotes
144.340 MHzAE0SS-13APRS / Digi EOSSXPrimary Beacon, Time slotted at 0:10 and 0:40
145.765 MHzKC0D-14Remote Release / DFSecondary Beacon
Payload Plan: 
FrequencyList: 

Preflight Net:

The pre-flight net will be on 449.225 minus offset with a 141.3 Hz tone "Fun Machine” Node 1961 for the Friday Pre-Flight Net for April 2nd at 7 PM.  

Analog T&R Repeater:

RMRL 449.450 minus offset with 103.5 Hz tone. 

As you all know the PPFMA 448.450 repeater is not available for the upcoming EOSS flight on April 3rd and probably April 10th & 17th.  As such we are going to use the RMRL 449.450 minus offset with a 103.5 Hz tone for all flights.

DMR:

RMHAM DMR “Wide" along with EOSS deployable(s) have been approved for all flights.  We will be using “Wide” talk group.  Zone will be “Central East” W9CN will have EOSS#1 Deployable repeater operating from his truck.  

NOTE: Code plugs need to be updated.

The Usual EOSS Simplex Frequencies (UESF) will be used:

  • Ground Station                                                   446.050
  • Balloon #1 EOSS 308 T&R                                446.100
  • Balloon #2 EOSS 309 T&R                                446.150
  • Balloon #3 EOSS 310 T&R                                446.200
  • Car to Car drive out                                             446.275 

This will be our first “Twofer” in a while and we need to make sure we have the right T&R teams on the right simplex frequencies and we use the Car to Car drive out frequency to get the students to the landing sites.

2M Direction Finding Frequencies for this flight:

  • 144.340
  • 144.905
  • 145.645
  • 145.765

 

Tactical Calls: 
TacticalCall SignNameNotes
ALPHAWA0GEH. KC0DMarty, Mark
BravoW9CN, ND7JNQ, N0JPSMike, Kraig, John
CharlieKD7INQDave
DeltaK0SCCStephen
EchoKE7KCKTom, President
FoxtrotKC0RPSJim,Flight Coordinator
GolfK0BRA, N0RPFDoug, Rob
Ground StationN2XGL,K5JK. N0CallJeff, Tom, Randy
HotelKB0YRZ, L0LOBChris, Jim
IndiaN0NDMLarry
JulietKD0SEMDave
KiloKE0GKIBernadette GarciaCU Sponser
LimaN6BAJeff
TangoKC0LJohn
YankeeKE0YALBrad
TR Breakfast: 
IHOP at the Flying J truck stop in Limon at 5:45 AM.per Mike, W9CN Grid location is Punkin Center X 20 Y 30 Grid Test: N 39.000 • W 103.000 57.5 Y 40.3 308 Predict: 4 mi N of Seibert (NS CO-59 & EW CR-AA) (X 64.3 Y 65.6) 709 Predict: 3 mi NW of Seibert (NS CR-13 & EW CR-X) (X 62.1 Y 62.9) Weather forecast for Deer Trail at 0700 MDT (1300 UTC) Saturday: Sunny skies, cloud cover <20%, visibility unlimited Temperature 40, dew point 19, wind SW at 5