- Astrid (satellites)
Infobox_Spacecraft
Name = Astrid-1
Caption = Astrid-1.
Organization =Swedish National Space Board
Major_Contractors =Swedish Space Corporation
Mission_Type = Orbiter
Satellite_Of =Earth
Orbital_Insertion_Date =
Launch =January 24 ,1995 (03:54:22UTC )
Launch_Vehicle =Cosmos-3M
Decay =
Mission_Duration =January 24 toSeptember 27 1995 (however, onMars 1 the scientific instruments became inoperable)
NSSDC_ID = 1995-002B
Webpage = [http://www.ssc.se/default.asp?groupid=200491794047899&pageid=200461814500872 Astrid-1 at SSC]
Mass = 27 kg
Power = 11.88watt s (payload), 38.5 watts (nominal)
Orbital_elements =
Semimajor_Axis =
Eccentricity =
Inclination = 82.9°
Orbital_Period = 105 min
Apoapsis = 1,026 km
Periapsis = 968 km
Orbits =Infobox_Spacecraft
Name = Astrid-2
Caption = Astrid-2.
Organization =Swedish National Space Board
Major_Contractors =Swedish Space Corporation
Mission_Type = Orbiter
Satellite_Of =Earth
Orbital_Insertion_Date =
Launch =December 10 ,1998 (11:57:07UTC )
Launch_Vehicle =Cosmos-3M
Decay =
Mission_Duration =December 10 ,1998 tojuly 24 1999
NSSDC_ID = 1998-072B
Webpage = [http://www.ssc.se/default.asp?groupid=200491794047899&pageid=200461814501392 Astrid-2 at SSC]
Mass = <30 kg
Power = 16 watts (payload), 90 watts (nominal)
Orbital_elements =
Semimajor_Axis =
Eccentricity =
Inclination = 82.9°
Orbital_Period = 105 min
Apoapsis = 1,014 km
Periapsis = 968 km
Orbits =Astrid-1 and Astrid-2 were two microsatellites designed and developed by
Swedish Space Corporation on behalf of theSwedish National Space Board . They were piggyback launched on aCosmos-3M launch vehicle fromPlesetsk ,Russia . Astrid 1 onJanuary 24 ,1995 and Astrid 2 onDecember 10 ,1998 .Astrid-1
Sweden's first microsatellite was piggybacked with the launch of
Tsikada , a Russiannavigation satellite andFAISAT , aUS communications satellite .It carried an Energetic Neutral Atom imager called PIPPI (Prelude in Planetary Particle Imaging), an
Electron Spectrometer called EMIL (Electron Measurements - In-situ and Lightweight) and twoUV imager s called MIO (Miniature Imaging Optics), one for imaging the Earth's aurora and one for observing Lyman alpha-emission from the Earth'sgeocorona . This payload, named after characters inAstrid Lindgren 's books (the idea came from aRussia n scientist [http://www.rymdstyrelsen.se/svenska_satelliter.shtml] ), was developed by theSwedish Institute of Space Physics inKiruna .On
March 1 , aDC to DC converter for the scientific instruments failed, possibly due to ashort circuit , ending its scientific mission. However, the satellite remained in orbit untilSeptember 27 , serving as a testbed for various software algorithms andstore-and-forward communications.The entire satellite was built in a year and the cost, including launch, was 1.4 million U.S. dollars.
Astrid-2
Astrid-2 was Sweden's second microsatellite and it was piggybacked with
Nadezhda 5 , a Russiannavigation satellite .Its payload, built by the
Swedish Institute of Space Physics inKiruna andUppsala and theRoyal Institute of Technology (Alfven Laboratory) inStockholm , was EMMA (Electrical and Magnetic field Monitoring of the Aurora), LINDA (Langmuir INterferometer and Density experiment for Astrid-2), MEDUSA (Miniaturized Electrostatic DUal-tophat Spherical Analyzer) and PIA (Photometers for Imaging the Aurora). It was used to explore the electric andmagnetic field s in the upperionosphere and to measure neutral and charged particles andelectron density.See also
*
Odin (satellite)
*Viking (satellite) External links
* [http://www.ssc.se/default.asp?groupid=200491794047899&pageid=200461814500872 Astrid-1 at Swedish Space Corporation]
* [http://www.ssc.se/default.asp?groupid=200491794047899&pageid=200461814501392 Astrid-2 at Swedish Space Corporation]
* [http://msl.jpl.nasa.gov/QuickLooks/astridQL.html Astrid-1 Quicklook at NASA's Mission and Spacecraft Library]
* [http://msl.jpl.nasa.gov/QuickLooks/astrid2QL.html Astrid-2 Quicklook at NASA's Mission and Spacecraft Library]
* [http://www.astronautix.com/craft/astrid.htm Astrid-1 at Astronautix]
* [http://www.astronautix.com/craft/astrid2.htm Astrid-2 at Astronautix]
* [http://www-ssc.igpp.ucla.edu/IASTP/57/index.htm Energetic Neutral Atom Imaging By The Astrid Microsatellite]
Wikimedia Foundation. 2010.