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🛰️ SATELLITE · HISTORICAL RECORD

SDSAT

Re-entered 18 Jul 2023

SDSAT (NORAD 47721, COSPAR 2021-015V) was a IN satellite that re-entered Earth's atmosphere on 18 Jul 2023, launched on 28 Feb 2021 on the PSLV Rideshare 18 mission. It was operated by SKI as part of the SKI programme. The spacecraft was built by ISRO/SKI on the SDSAT bus, with a mass of 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.

2021
launched
2023
re-entered
2
years on orbit
4
kg mass

Lifecycle

Launched28 Feb 2021 · on the PSLV Rideshare 18 mission
Operational1 May 2022 · entered service
Retired1 May 2022 · end of operational service
Re-entered18 Jul 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID47721
COSPAR2021-015V
TypeSatellite
OperatorSKI
Country / StateIN
ManufacturerISRO/SKI
BusSDSAT
Mass4 kg
ProgrammeSKI
CategoryTECH
OrbitLEO (LLEO/S)
Altitude498 × 511 km
Inclination97.5°

Frequently asked questions

What happened to SDSAT?

SDSAT re-entered Earth's atmosphere on 18 Jul 2023, ending a mission that began with its launch in 2021. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did SDSAT re-enter the atmosphere?

SDSAT re-entered on 18 Jul 2023, according to Orbital Radar's historical catalogue records.

Who operated and built SDSAT?

SDSAT was operated by SKI and built by ISRO/SKI (IN).

Launched together

Amazonia-1NORAD 47699SAI-1 NanoConnect-2Re-entered 2023Sindhu NetraRe-entered 2023SpaceBEE 87Re-entered 2023SpaceBEE 86Re-entered 2023SpaceBEE 85Re-entered 2023SpaceBEE 84Re-entered 2023SpaceBEE 83Re-entered 2022
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.