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🛰️ SATELLITE · HISTORICAL RECORD

STP-SIV 2

Re-entered 11 Mar 2023

STP-SIV 2 (NORAD 39380, COSPAR 2013-064A) was a US satellite that re-entered Earth's atmosphere on 11 Mar 2023, launched on 20 Nov 2013 on the ORS-3 mission. It was operated by AFSMC as part of the STPSAT programme. The spacecraft was built by BALL/AEROAC on the Astro200/BCP-100 bus, with a mass of 135 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.

2013
launched
2023
re-entered
10
years on orbit
135
kg mass

Lifecycle

Launched20 Nov 2013 · on the ORS-3 mission
Operational1 Jul 2019 · entered service
Retired1 Jan 2023 · end of operational service
Re-entered11 Mar 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID39380
COSPAR2013-064A
TypeSatellite
OperatorAFSMC
Country / StateUS
ManufacturerBALL/AEROAC
BusAstro200/BCP-100
Mass135 kg
ProgrammeSTPSAT
CategoryTECH
OrbitLEO (LLEO/I)
Altitude498 × 506 km
Inclination40.5°

Frequently asked questions

What happened to STP-SIV 2?

STP-SIV 2 re-entered Earth's atmosphere on 11 Mar 2023, ending a mission that began with its launch in 2013. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did STP-SIV 2 re-enter the atmosphere?

STP-SIV 2 re-entered on 11 Mar 2023, according to Orbital Radar's historical catalogue records.

How long was STP-SIV 2 operational?

STP-SIV 2 was operational for roughly 4 years, from 1 Jul 2019 to 1 Jan 2023.

Who operated and built STP-SIV 2?

STP-SIV 2 was operated by AFSMC and built by BALL/AEROAC (US).

Launched together

NSF FireflyRe-entered 2017ChargerSat 1.2Re-entered 2015Prometheus 1Re-entered 2015Lunar O/LRe-entered 2015Prometheus 3Re-entered 2015ORS-3Re-entered 2015PhoneSat 2.4Re-entered 2017CAPE 2Re-entered 2014
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.