Thai-MicroSat-OSCAR 31
Satellite
Summary
Name: Thai-MicroSat-OSCAR 31 (TMSAT-1 also TiungSat-1)
Catalog Number: 25396
Callsign: Broadcast: TMSAT1-11 BBS: TMSAT1-12
Launched: July 10, 1998
Launch vehicle: RESURS-01
Launch location: Baikonur Cosmodrome, Kazakhstan
Weight: 48.7 kg
Orbit: Circular LEO (Low Earth Orbit), sun-synchronous, 822
x 821 km
Inclination: 98.6 degrees
Size: 350 x 350 x 650 mm
Period: 101 Minutes
Digital Transponders Mode JD 9600 baud FSK (FM)
Features:
-
Similar to KITSAT-OSCAR-23 in construction.
-
9600 bps AX.25 protocol store-and-forward PACSAT
Protocol Suite communications system.
-
Digital Signal Processing Experiment (DSPE)
-
GPS receiver
-
Earth Imaging Subsystem
-
On-Board Computer 186 (OBC186) and 386 (OBC386)
Status: Non-Operational
Description
TO-31 can take multispectral
images. They are produced by combining data from the Narrow Angle
Camera, sensing in the green, red, and near-IR spectra. Each image
has 1020 x 1020 pixels, covering an area of 100 x 100 km at mean ground
resolution of 98 meters / pixel. Red areas indicate healthy vegetation
(due to the strong near-IR reflectance of chlorophyll). Urban areas
are generally blue-grey. The different colors of fields provides
an indication of the state of vegetation (bare soil, marsh, young or mature
vegetation, etc).
More information is available at TMSAT-1
mission pages from Surrey Satellite Technology,
Ltd.
TMSAT telemetry DTML configuration file (tmsat1.cfg)
Version 1.0b, Updated July 11, 1998.
References
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Last update May 31, 2003 - N7HPR