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🛰️ SATELLITE · HISTORICAL RECORD

BIRD-BTN

Re-entered 18 Nov 2020

BIRD-BTN (NORAD 43591, COSPAR 1998-067PF) was a BT satellite that re-entered Earth's atmosphere on 18 Nov 2020, launched on 29 Jun 2018 on the 77KM No. 17501 mission. It was operated by BTDITT as part of the Bhutan programme. The spacecraft was built by KYUT on the Cubesat 1U bus, with a mass of 1 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
2020
re-entered
2
years on orbit
1
kg mass

Lifecycle

Launched29 Jun 2018 · on the 77KM No. 17501 mission
Operational16 Nov 2020 · entered service
Retired16 Nov 2020 · end of operational service
Re-entered18 Nov 2020 · atmospheric re-entry — object destroyed

Specifications

NORAD ID43591
COSPAR1998-067PF
TypeSatellite
OperatorBTDITT
Country / StateBT
ManufacturerKYUT
BusCubesat 1U
Mass1 kg
ProgrammeBhutan
CategoryTECH
OrbitLEO (LLEO/I)
Altitude398 × 408 km
Inclination51.6°

Frequently asked questions

What happened to BIRD-BTN?

BIRD-BTN re-entered Earth's atmosphere on 18 Nov 2020, 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 BIRD-BTN re-enter the atmosphere?

BIRD-BTN re-entered on 18 Nov 2020, according to Orbital Radar's historical catalogue records.

Who operated and built BIRD-BTN?

BIRD-BTN was operated by BTDITT and built by KYUT (BT).

Launched together

BIRD-MYSRe-entered 2020BIRD-PHLRe-entered 2020Dragon C111Re-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? →