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Secor II S/N 7 (TR-30A)

Re-entered 6 Jul 1967

Secor II S/N 7 (TR-30A) (NORAD 2205, COSPAR 1966-051B) was a US satellite that re-entered Earth's atmosphere on 6 Jul 1967, launched on 9 Jun 1966 on the Midas RTS-I F1 mission. It was operated by ACE / GIMR as part of the Secor II programme. The spacecraft was built by ITT on the Secor bus, with a mass of 18 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.

1966
launched
1967
re-entered
1
year on orbit
18
kg mass

Lifecycle

Launched9 Jun 1966 · on the Midas RTS-I F1 mission
Operational1 Jul 1967 · entered service
Retired1 Jul 1967 · end of operational service
Re-entered6 Jul 1967 · atmospheric re-entry — object destroyed

Specifications

NORAD ID2205
COSPAR1966-051B
TypeSatellite
OperatorACE / GIMR
Country / StateUS
ManufacturerITT
BusSecor
Mass18 kg
ProgrammeSecor II
CategoryGEOD
OrbitLEO (LEO/P)
Altitude171 × 3,479 km
Inclination90.0°

Frequently asked questions

What happened to Secor II S/N 7 (TR-30A)?

Secor II S/N 7 (TR-30A) re-entered Earth's atmosphere on 6 Jul 1967, ending a mission that began with its launch in 1966. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Secor II S/N 7 (TR-30A) re-enter the atmosphere?

Secor II S/N 7 (TR-30A) re-entered on 6 Jul 1967, according to Orbital Radar's historical catalogue records.

Who operated and built Secor II S/N 7 (TR-30A)?

Secor II S/N 7 (TR-30A) was operated by ACE / GIMR and built by ITT (US).

Launched together

Midas RTS-I F1Re-entered 1966ERS 16Re-entered 1967
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.