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🛰️ SATELLITE · HISTORICAL RECORD

Midstar 1

Re-entered 17 Aug 2023

Midstar 1 (NORAD 30773, COSPAR 2007-006B) was a US satellite that re-entered Earth's atmosphere on 17 Aug 2023, launched on 9 Mar 2007 on the Orbital Express mission. It was operated by USNA / STP as part of the USNA programme. The spacecraft was built by USNA on the MidStar bus, with a mass of 120 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.

2007
launched
2023
re-entered
16
years on orbit
120
kg mass

Lifecycle

Launched9 Mar 2007 · on the Orbital Express mission
Operational1 Apr 2009 · entered service
Retired1 Apr 2009 · end of operational service
Re-entered17 Aug 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID30773
COSPAR2007-006B
TypeSatellite
OperatorUSNA / STP
Country / StateUS
ManufacturerUSNA
BusMidStar
Mass120 kg
ProgrammeUSNA
CategoryTECH
OrbitLEO (LLEO/I)
Altitude494 × 498 km
Inclination46.0°

Frequently asked questions

What happened to Midstar 1?

Midstar 1 re-entered Earth's atmosphere on 17 Aug 2023, ending a mission that began with its launch in 2007. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Midstar 1 re-enter the atmosphere?

Midstar 1 re-entered on 17 Aug 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Midstar 1?

Midstar 1 was operated by USNA / STP and built by USNA (US).

Launched together

Orbital ExpressRe-entered 2007Orbital ExpressRe-entered 2023STPSat-1Re-entered 2023Falconsat-3Re-entered 2023CFESatRe-entered 2022
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.