Debris object · NORAD 5256 · COSPAR 1971-049C
SL-12 PLAT
- Operator Commonwealth of Independent States (former USSR)
- Constellation —
- Country Russia
Altitude now
—
object decayed
Velocity
—
Inclination
51.49°
Period
88.2 min
88.2 min
Perigee
172km
Apogee
202km
orbit unavailableNo orbital element set on file — decayed 31 May 1971.· Metadata updated 24 h ago
Live position
Live position
Live position unavailable — this object re-entered the atmosphere on 31 May 1971 and is no longer tracked.
Mission
Mission & classification
- Mission type derived
- Debris
- Object type
- Debris
- SATCAT ops status
- Decayed [D]
- Radar cross-section
- —
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- SL-12 PLATCelestrak Satcat
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- CIS · Commonwealth of Independent States (former USSR)
- Country
- Russia RU
Launch
Launch
- Launch date
- 28 May 1971
- COSPAR launch id
- 1971-049
- Launch site
- Baikonur Cosmodrome (Tyuratam)
Objects from the same launch · 4
- MARS 3 DEB5263DebrisDecayed
- MARS 35252PayloadUnknown
- MARS 3 DESCENT CRAFT5667PayloadDecayed
- SL-12 R/B5255Rocket bodyDecayed
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
Transparency
Sources & provenance
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
No events detected for this object yet. Launches, decays and orbit changes are generated by the derived-analytics connector.
Reference
Identifiers
- NORAD catalogue number
- 5256
- COSPAR / international designator
- 1971-049C
- SatelliteIndex id
- sat_01M28X3JK63JBBC6B3A4YD98N8
- Canonical slug
- sl-12-plat-5256
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.