Astrid 1

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General

Designation	23464 / 95002B
Launch date	24 Jan 1995 at 03:54 UT
Country of origin	Sweden
Operator	Swedish Space Corporation
Mission	Scientific: ionosphere and magnetosphere study
Perigee/Apogee	968/1023 km
Inclination	82.9°
Period	105 min
Launch vehicle	Cosmos 3M
Launch site	Plesetsk LC132

The satellite will initially be controlled from Swedish Space Corporation's ground station at ESRANGE in Kiruna in Northern Sweden. Thereafter control will be taken from Esrange, by the Swedish Institute of Space Physics in Kiruna.

The payload, which will emphasize studies of energetic neutral particles in the Earth's magnetosphere, includes PIPPI, the neutral particle imager; MIO, the miniature UV imaging system (with optical, UV continuum and Lyman alpha monitors) and EMIL, an electron spectrometer.

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External resources

http://www.ssc.se/ssd/msat/astrid.html

sat-index articles

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End of life

Out of service	Mar 1995
Cause	short circuit
Decay

Technical data

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Specifications

Prime contractor	Platform: Swedish Space Corporation's Science Systems Division in Solna Payload: Swedish Institute of Space Physics in Kiruna
Platform	Freja C
Mass at launch	28 kg
Mass in orbit
Length	0.45 m
Width	0.45 m
Height	0.4 m
Solar array	4 wings, silicon
Stabilization	spin stabilized
DC power	28 V +-4v
Design lifetime	3 months

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UHF-band (400.55 MHz)

Main transponders	1
Backup transponders	0
Power	2 W
Bandwidth	50 kHz
Coverage	omnidirectional
EIRP max	-12-0 dB
Polarization	RHCP
Data flow	8 kbps

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S-band (2208.1629 MHz)

Main transponders	1
Backup transponders	0
Power	2 W
Bandwidth	890 kHz
Coverage	omnidirectional
EIRP max	-6- 2 dB
Polarization	RHCP
Data flow	128 kbps

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