EOSS-339/340 Metro State University - Intro to Space - Recap

Nancy Koos K0NKK's picture
Submitted by Nancy Koos K0NKK on Sun, 04/16/2023 - 16:33

Two 1500 gram balloons were launched from Deer Trail, Colorado at 0658 (EOSS-339) and 0716 (EOSS-340) on Saturday morning, April 22, 2023.
The balloons carried a total of 7 Metro State and High School payloads.

EOSS-339 rose to an altitude of 97,284 feet where it burst.  The payload string then landed about 15 miles south of Seibert, CO at 0910.
Latitude 39.0710, Longitude -102.7975, Altitude 4,768 ft -  120 yards east of CR-20 just north of CR-C.

EOSS-340 rose to an altitude of 92,029 feet where it burst.  The payload string then landed about 14 miles south of Seibert, CO at 0918.
Latitude 39.1118, Longitude -102.8602, Altitude 4,945ft -  3/10 of a mile east of CO-59 across from of CR-F.

Mileage link for club members  https://forms.gle/qJjy47iTHF5ywDPJ6

Recap Gallery: 
Original Announcement: 

One 3000g balloon or two 1500g balloons flying student payloads for Metro State University's Intro to Space Course.Predictions are available at www.eoss.org/predict. Deer Trail is the launch site.If cloud covers more than 5/10 the heavy will be configured into 2 1500 g balloons.

  

Event Date: 
Saturday, April 22, 2023 - 00:00 to 23:45
Flight Coordinator: 
K0NKK
Launch Site: 
Deer Trail
Grid: 
Punkin Center: X 30, Y 30 Grid Test: N 39.000 • W 103.000: = X 67.5 Y 40.3
Flights: 

339H

Metro State University Student launch.  One Heavy or 2 Lites launch site Deer Trail.

 

Balloon Type: 
Totex 3000g Latex
Parachute: 
Rocket Man 12 ft
Beacons: 
FrequencyCallsignTypeNotes
Payload Plan: 
PDF icon EOSS-339 Heavy Rev C.pdf
FrequencyList: 

Communications Plan

Preflight Net:

Confirmed: the 449.225 minus offset with a 141.3 Hz tone "Fun Machine” .  The Pre-Flight Net is on Fridays prior to the flights @ 19:00 (7 PM).

Analog T&R Repeater:

Confirmed: the RMRL 449.450 minus offset with 103.5 Hz tone for this flight, including Skyhub links to:

  • Limon (Cedar Point) - 447.650(-) MHz, 103.5 Hz
  • Hugo - 447.150(-) MHz, 103.5 Hz
  • Firstview - 447.600(-) MHz, 103.5 Hz
  • Akron - 447.425(-) MHz, 103.5 Hz
  • Stratton - 146.895(-) MHz, 103.5 Hz

DMR:

RMHAM DMR has been approved using the “Wide” talk group.  This includes the use of both deployable repeaters.   

RMHAM DMR NOTE:

RMHAM has added the following DMR sites:

  • Burlington Colorado RMHAM-N0SZ Input 440.0500 MHz Output 445.0500 MHz Color Code 6,  TS-1 TG 700 (Wide), TS-2 TG 720 (Central)
  • Limon Colorado RMHAM-N0SZ Input 440.275 MHz Output 445.275 MHz Color Code 7, TS-1 TG 700 (Wide), TS-2 TG 720 (Central)

These two sites provide almost full coverage along the I-70 corridor from Byers to Goodland Kansas.

Updated code plugs are available on the RMHAM website.

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

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

2M Direction Finding Frequencies:

  • 144.340
  • 144.905
  • 145.645
Tactical Calls: 
TacticalCall SignNameNotes
AlphaWAØGEH, KCØDMarty, Mark
BravoW9CNMike
CharlieKBØYRZChris
DeltaKØSCC, KE0BMVStephen. Parker, Sunday Only if needed
EchoKCØRPSJim
FoxtrotKØNKKNancy (Flight Controller)
GolfNØRPFRob
Ground Station (on wheels)N2XGL, K5JK, NoCALLJeff, Tom, Randy
HotelNØNDMLarry
IndiaKE0UWCGlenn
TangoKCØLJohn (Remote From Texas)
YankeeKE0YALBrad
TR Breakfast: 
Optional Tracker Breakfast, 6:00am, IHOP Limon, Flying J