This dimension marks whether a spacecraft is still active, retired or lost. Wikipedia notes that most spacecraft "are designed to deorbit themselves" at the end of their working life, while some, like failed upper stages, remain derelict in orbit instead. Browsing by status separates spacecraft still operating from those no longer in service.
Facts
Comparison
Field Origin Era Status
Sources
1. Wikipedia: Sputnik 1
Wikimedia FoundationSputnik 1, lead section (satellite subcategory)Quote, Sputnik 1, lead section (satellite subcategory)
It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program.
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