CRO-BU
Re-entered 12 May 1991CRO-BU (NORAD 21246, COSPAR 1991-031E) was a US satellite that re-entered Earth's atmosphere on 12 May 1991, launched on 28 Apr 1991 on the OV-103 Research/FF mission. It was operated by SDIO as part of the SDIO SS programme. The spacecraft was built by DSI on the CRO bus, with a mass of 88 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.
Lifecycle
Specifications
Frequently asked questions
What happened to CRO-BU?
CRO-BU re-entered Earth's atmosphere on 12 May 1991, ending a mission that began with its launch in 1991. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.
When did CRO-BU re-enter the atmosphere?
CRO-BU re-entered on 12 May 1991, according to Orbital Radar's historical catalogue records.
Who operated and built CRO-BU?
CRO-BU was operated by SDIO and built by DSI (US).