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🛰️ SATELLITE · HISTORICAL RECORD

Tianyi-33

Re-entered 6 May 2025

Tianyi-33 (NORAD 58553, COSPAR 2023-193A) was a CN satellite that re-entered Earth's atmosphere on 6 May 2025, launched on 8 Dec 2023 on the Hongqing-1/2/TY-33 mission. It was operated by CTYK / HNUST as part of the Tianyi programme. The spacecraft was built by CTYK on the TY-33 bus, with a mass of 50 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.

2023
launched
2025
re-entered
2
years on orbit
50
kg mass

Lifecycle

Launched8 Dec 2023 · on the Hongqing-1/2/TY-33 mission
Operational1 Apr 2025 · entered service
Retired1 Apr 2025 · end of operational service
Re-entered6 May 2025 · atmospheric re-entry — object destroyed

Specifications

NORAD ID58553
COSPAR2023-193A
TypeSatellite
OperatorCTYK / HNUST
Country / StateCN
ManufacturerCTYK
BusTY-33
Mass50 kg
ProgrammeTianyi
CategoryTECH
OrbitLEO (LLEO/S)
Altitude433 × 461 km
Inclination97.3°

Frequently asked questions

What happened to Tianyi-33?

Tianyi-33 re-entered Earth's atmosphere on 6 May 2025, ending a mission that began with its launch in 2023. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Tianyi-33 re-enter the atmosphere?

Tianyi-33 re-entered on 6 May 2025, according to Orbital Radar's historical catalogue records.

Who operated and built Tianyi-33?

Tianyi-33 was operated by CTYK / HNUST and built by CTYK (CN).

Launched together

HongqingRe-entered 2025Honghu-2NORAD 58555
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.