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🛰️ SATELLITE · HISTORICAL RECORD

SEDS 1 End Mass/Tether

Re-entered 30 Mar 1993

SEDS 1 End Mass/Tether (NORAD 22582, COSPAR 1993-017B) was a US satellite that re-entered Earth's atmosphere on 30 Mar 1993, launched on 30 Mar 1993 on the Navstar GPS SVN 31 mission. It was operated by MSFC as part of the SEDS programme. The spacecraft was built by TETHA on the SEDS bus, with a mass of 30 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

1993
launched
1993
re-entered
0
years on orbit
30
kg mass

Lifecycle

Launched30 Mar 1993 · on the Navstar GPS SVN 31 mission
Operational30 Mar 1993 · entered service
Retired30 Mar 1993 · end of operational service
Re-entered30 Mar 1993 · atmospheric re-entry — object destroyed

Specifications

NORAD ID22582
COSPAR1993-017B
TypeSatellite
OperatorMSFC
Country / StateUS
ManufacturerTETHA
BusSEDS
Mass30 kg
ProgrammeSEDS
CategoryTECH
OrbitLEO (LLEO/I)
Altitude184 × 719 km
Inclination36.0°

Frequently asked questions

What happened to SEDS 1 End Mass/Tether?

SEDS 1 End Mass/Tether re-entered Earth's atmosphere on 30 Mar 1993, ending a mission that began with its launch in 1993. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did SEDS 1 End Mass/Tether re-enter the atmosphere?

SEDS 1 End Mass/Tether re-entered on 30 Mar 1993, according to Orbital Radar's historical catalogue records.

Who operated and built SEDS 1 End Mass/Tether?

SEDS 1 End Mass/Tether was operated by MSFC and built by TETHA (US).

Launched together

GPS SVN 31NORAD 22581
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.