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India
Successfully Launches Three Satellites
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An Indian PSLV successfully
launched three satellites from SHAR Center, Sriharikota at 04:53
UTC on October 22. The Polar Satellite Launch Vehicle (PSLV),
PSLV-C3, successfully launched satellites:
Technology Experiment Satellite (TES) for ISRO, BIRD for
Germany,and PROBA for Belgium. TES and BIRD were placed in a
sun-synchronous 568 km (307 nmi) orbit. PROBA was placed in an
elliptical orbit with a perigee of 568 km (307 nmi) and an apogee
of 638 km (345 nmi). It will eventually orbit at an altitude
of 829 km (448 nmi).
TES 1, built by ISRO, is planned to test and validate
advanced spacecraft bus and payload technologies. TES 1 will carry
a beam steering antenna, solid state recorder, step-and-stare mode
camera, two-mirror optics and high bit rate data transmission.
BIRD is a German satellite mission
to demonstrate the scientific and technological value and the
technical and programmatic feasibility of the combination of
ambitious science and new, not yet space-proofed advanced
technologies using small satellite technologies. BIRD mission is
known as FIRES which is using a design-to-science philosophy to
use infrared remote sensing for ecologists, fire ecologists and
volcanologists.
The Project for On-Board Autonomy (PROBA)
satellite mission is a technology experiment to demonstrate the
on-board autonomy of a generic platform suitable for small
scientific or application missions.
Verhaert Design & Development
is the prime contractor for Belgium's first satellite. The PROBA
satellite is a cube (0.8 x 0.6 x 0.6 m) covered by gallium -arsenide
solar cells on five faces. It is three-axis stabilized by a
double-headed star tracker, GPS receiver and a set of reaction
wheels with the redundancy of miniaturized fiber-optic and
solid-state gyros. It will use an on-board computer for spacecraft
Autonomy in orbit. A high-performance RISC processor, the ERC 32,
will perform spacecraft management including Guidance, navigation,
control, housekeeping and monitoring on-board scheduling and
resource management.
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