ACES-25 Flight Info


LAUNCH TIME: May 24, 2011 @ 12:30 UTC(Tentative)
LAUNCH LOCATION: Columbia Scientific Balloon Facility, Palestine, Texas (31.78317 deg N, 95.72333 deg W)
CUTDOWN TIME: TBD
CUTDOWN LOCATION:TBD
AVERAGE ASCENT RATE: TBD
CUTDOWN ALTITUDE: 100,000ft Maximum
TOUCHDOWN TIME: TBD
TOUCHDOWN LOCATION:


ACES-25 Frequencies:




Live online tracking of ACES-25



KF5FPY-11
Primary Beacon
KF5FPY-11 Tracker
(Single Window)
KF5FPY-11 Range and
Bearing to nearest VOR
KF5FPY-11
Raw Packets
W5YW-11
Secondary Beacon
W5YW-11 Tracker
(Single Window)
W5YW-11 Range and
Bearing to nearest VOR
W5YW-11
Raw Packets
Example KF5FPY-11 GPS Position Data - $GPGGA sentence.

KF5FPY-11>APRS:$GPGGA,194116.00,3024.7456,N,09110.7545,W,1,05,2.81,00033,M,-025,M,,*5F

KF5FPY-11 Telemetry Infomation:

example telemetry format: KF5FPY-11>APRS:T#000,12.60,1008,309,316,0012
telemetry decode format: KF5FPY-11>APRS,qAR,KB5LS-1:T#nnn,aa.aa,pppp,ccc,ddd,tttt

nnn=telemetry record number
aa.aa=main battery volts
pppp=pressure (mb)
  ccc=inside temperature in kelvins
ddd=outside temperature in kelvins
tttt=timing reference

Example W5YW-11 GPS Position Data - APRS Text format.

W5YW-11>APTT4,WIDE2-1:/202314h3024.74N/09110.75WO000/000/A=000066!w^6!

W5YW-11 Telemetry Infomation:

example telemetry format: W5YW-11>APTT4,WIDE2-1:T#014,12.48,0004,212,212,0415
telemetry decode format: W5YW-11>APRS,WIDE2-1,qAR,KB5LS-1:T#nnn,aa.aa,xxxx,ccc,ddd,tttt

nnn=telemetry record number
aa.aa=main battery volts
xxxx=NOT USED
  ccc=inside temperature in kelvins
ddd=outside temperature in kelvins
tttt=timing reference



ACES-25 Flight Profiles



Altitude profile data (Excel Workbook)
Altitude profile program (zipped file)



Flight Systems:

Balloon Manufacturer Kaymount
Balloon Type latex
Balloon Size 3000 gram
Nozzle Lift ~17.5 pounds (estimate)
Free Lift % ~5.6 pounds (estimate)
Ascent Rate 1000 fpm (target)
Descent Rate 1400 fpm (estimate)
Peak Altitude 100,000 ft. (target)
Launch Conditions TBD

Payload Configuration:

Parachute: Skyangle 60"
Cutdown Apparatus: Nichrome heating element to melt nylon cord attaching top of parachute to balloon.  Controlled by ground command through location beacon transceiver.  Contains own batteries. Also contains audio beeper.
Primary Beacon: Kenwood TH-D7A(G) transceiver transmitting at 144.390 MHz at about 4 W, Sending ARPS packet data on a 50 second interval, Call sign KF5FPY-11, Trimble Lassen iQ GPS/Active patch antenna
Telemetry, Battery Voltage, Pressure, Temperature (in, out)
Antenna: Half wave flexible J-Pole
Direction Finder Beacon: 15mW FM transmitter 445.875 MHz, Call Sign K5LSU
Secondary Beacon: MicroTrak TT4 transceiver transmitting 144.390 MHz at 500mW sending APRS packet data every 70s. Call W5YW-11
Trimble Lassen iQ GPS/Active patch antenna.
Telemetry, Battery Voltage, Pressure, Temperature (in, out)
Antenna: Half wave flexible J-Pole
Structure: Flight train string, spreader bar, payload clips
Total Flight Support System: 2.320 kg
Experiment A: MARSLIFE Biological Sampler
Experiment B: GOPRO 1080p 30fps HD Video looking down at the MARSLIFE Sampling Chambers.
  Total weight: ~1100g