SiriusSat-1

Re-entered 14 Jul 2018

SiriusSat-1 (NORAD 43595, COSPAR 1998-067PG) was a RU satellite that re-entered Earth's atmosphere on 14 Jul 2018, launched on 9 Jul 2018 on the 77KM No. 17501 mission. It was operated by SIROTS as part of the OTs Sirius programme. The spacecraft was built by SPUT on the Cubesat 1U bus, with a mass of 1.4 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.

2018

launched

2018

re-entered

years on orbit

1.4

kg mass

Lifecycle

Launched9 Jul 2018 · on the 77KM No. 17501 mission

Operational1 Dec 2020 · entered service

Retired9 Dec 2020 · end of operational service

Re-entered14 Jul 2018 · atmospheric re-entry — object destroyed

Specifications

NORAD ID43595

COSPAR1998-067PG

TypeSatellite

OperatorSIROTS

Country / StateRU

ManufacturerSPUT

BusCubesat 1U

Mass1.4 kg

ProgrammeOTs Sirius

CategoryTECH

OrbitLEO (LLEO/I)

Altitude401 × 407 km

Inclination51.6°

Frequently asked questions

What happened to SiriusSat-1?

SiriusSat-1 re-entered Earth's atmosphere on 14 Jul 2018, ending a mission that began with its launch in 2018. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did SiriusSat-1 re-enter the atmosphere?

SiriusSat-1 re-entered on 14 Jul 2018, according to Orbital Radar's historical catalogue records.

Who operated and built SiriusSat-1?

SiriusSat-1 was operated by SIROTS and built by SPUT (RU).

Launched together

SiriusSat-2Re-entered 2018 Progress 7K-TGM No. 439Re-entered 2018

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

Browse the live satellite directory → Re-entered satellites archive → Launch record: 77KM No. 17501 → What is space debris? →