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Meteoroid Technology Satellite

From Wikipedia, the free encyclopedia

Meteoroid Technology Satellite
Design of MTS.
Mission typeResearch of meteoroids
COSPAR ID1972-061A[2]
SATCAT no.6142[3]
Spacecraft properties
ManufacturerLangley Research Center
Launch mass90 kg (200 lb)
Start of mission
Launch date13 August 1972, 15:10 (1972-08-13UTC15:10) UTC[4]
RocketScout D-1 S184C[4]
Launch siteWallops LA-3A[4]
End of mission
Decay date2 November 1979 (1979-11-03)[3]
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude496 km (308 mi)[2]
Apogee altitude814 km (506 mi)[2]
Period97.80 minutes[2]
Epoch14 November 1971[2]

Meteoroid Technology Satellite (also called as MTS or Explorer 46) was a NASA satellite launched as part of Explorers program.[5] MTS was launched on August 13, 1972 on Wallops Flight Facility, with a Scout-D rocket. The objectives of the MTS were to measure the meteoroid penetration rates in the bumper-protected target, and to obtain data on meteoroid velocity and flux distribution. The central hub of the satellite was 3.20 metres (10.5 ft) long and carried the velocity and impact experiments. Bumper targets extended from the satellite, giving it an overall width of 7.015 metres (23.02 ft).[2]

MTS reentered in the atmosphere on November 2, 1979.[3]


  • Multi-sheet bumper, 7 metres (23 ft) across, its detectors filled with gas, to register and telemeter loss of pressure;
  • 12 box-shaped velocity detectors at various locations along the spacecraft;
  • Impact flux detectors, with 64 detectors to assess the population of very small particles.[2]


  1. ^ "Explorer 46/MTC". Space Encyclopedia. Claude Lafleur. 2010. Archived from the original on 7 September 2012. Retrieved 22 June 2018.
  2. ^ a b c d e f g h i "Meteoroid Technology Satellite". NSSDC Master Catalog. NASA Goddard Space Flight Center. Retrieved 19 June 2018. This article incorporates text from this source, which is in the public domain.
  3. ^ a b c "EXPLORER 46 (MTS)". 2011. Retrieved June 19, 2018.
  4. ^ a b c McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 19 June 2018.
  5. ^ "Letter dated 27 October 1972 from the Permanent Representative of the United States of America to the United Nations addressed to the Secretary-General". (72-22115). UNOOSA. 1972-11-08. Archived from the original on 2 April 2015. Retrieved 22 June 2018.

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This page was last edited on 27 January 2021, at 20:52
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