Skip to content
SatelliteIndex

Debris object · NORAD 27901 · COSPAR 1981-031J

COSMOS 1261 DEB

DecayedDebrisOTHERDebris derived
  • Operator Commonwealth of Independent States (former USSR)
  • Constellation —
  • Country Russia

Altitude now

—

object decayed

Velocity

—

Inclination

62.16°

Period

8.7 h

521.6 min

Perigee

126km

Apogee

30,046km

orbit unavailableNo orbital element set on file — decayed 18 Jul 2025.· Metadata updated 9 h ago

Live position

Live position

Live position unavailable — this object re-entered the atmosphere on 18 Jul 2025 and is no longer tracked.

Mission

Mission & classification

Mission type derived
Debris
Object type
Debris
SATCAT ops status
Decayed [D]
Radar cross-section
0.9 m²

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • COSMOS 1261 DEBCelestrak Satcat

Ownership

Operator & country

Operator
—
SATCAT owner code
CIS · Commonwealth of Independent States (former USSR)
Country
Russia RU

Launch

Launch

Launch page →
Launch date
31 Mar 1981
COSPAR launch id
1981-031
Launch site
Plesetsk Cosmodrome

Objects from the same launch · 13

All objects from launch 1981-031 →

Change log

History

No changes recorded since first ingestion on 11 Sept 2026 18:54 UTC. Status, orbit class, name and ownership changes are logged here as sources are re-ingested.

Regulatory

UN registration

UN Register of Objects Launched into Outer Space (UNOOSA) — connector planned, not yet ingested; registration unavailable

Transparency

Sources & provenance

All sources →

No source is linked to this record yet — the catalogue row exists but no provenance entry has been written for it.

Field provenance

No field-level provenance recorded.

Timeline

Events

All events →

No events detected for this object yet. Launches, decays and orbit changes are generated by the derived-analytics connector.

Reference

Identifiers

NORAD catalogue number
27901
COSPAR / international designator
1981-031J
SatelliteIndex id
sat_01M28X3JQPKZYWTJYHRK309CAF
Canonical slug
cosmos-1261-deb-27901

Orbit class, mission type and constellation membership are derived by SatelliteIndex (Debris) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.