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STP-S26 Ballast A

Retired 2010

STP-S26 Ballast A (NORAD 37230, COSPAR 2010-062J) is a retired US satellite, withdrawn from service around 20 Nov 2010, launched on 20 Nov 2010 on the STP-SIV mission. It was operated by AFSMC as part of the STP2 programme. The spacecraft was built by OSCC?, with a mass of 150 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

2010
launched
2010
retired
16
years on orbit
150
kg mass

Lifecycle

Launched20 Nov 2010 · on the STP-SIV mission
Operational20 Nov 2010 · entered service
Retired20 Nov 2010 · end of operational service
StatusOn orbit (not live-tracked)

Specifications

NORAD ID37230
COSPAR2010-062J
TypeSatellite
OperatorAFSMC
Country / StateUS
ManufacturerOSCC?
Mass150 kg
ProgrammeSTP2
CategoryTECH*
OrbitLEO (LEO/I)
Altitude1,200 × 1,204 km
Inclination72.0°

Frequently asked questions

What happened to STP-S26 Ballast A?

STP-S26 Ballast A was retired from service around 20 Nov 2010 after launching in 2010. It is no longer operational but remains catalogued.

Who operated and built STP-S26 Ballast A?

STP-S26 Ballast A was operated by AFSMC and built by OSCC? (US).

Launched together

STP-SIVNORAD 37222Radio Aurora ExplorerNORAD 37223O/OREOSNORAD 37224Fastsat-HSVNORAD 37225Falconsat-5NORAD 37226Fastrac 1NORAD 37227STP-S26 Ballast BNORAD 37231NanoSail-D2Re-entered 2011
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.