Environmental Research Satellite

family of artificial satellites launched in the 1960s run by the USAF. 

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Wikimedia, Wikidata
artificial satellite, spacecraft, United States of America, 

• Google Knowledge entry^@
• Google Knowledge entry^@
  

• 

  Environmental Research Satellite
  

spacecraft – 

Frameless

The TRS and ORS families. From left to right: TRS Mk. 3, TRS Mk. 2, TRS Mk.1, an OV3 bus, ORS Mk. 1, ORS Mk. 2, ORS Mk. 3

Type	Date	Description	Keywords	Notes	Source
link		Google Knowledge entry@			Wikidata
link		Google Knowledge entry@			Wikidata
vessel		Environmental Research Satellite	spacecraft, artificial satellite		Wikidata
image	1971	The TRS and ORS families. From left to right: TRS Mk. 3, TRS Mk. 2, TRS Mk.1, an OV3 bus, ORS Mk. 1, ORS Mk. 2, ORS Mk. 3			Wikimedia

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