Debris object · NORAD 10387 · COSPAR 1977-098C
SL-4 DEB
- Operator Commonwealth of Independent States (former USSR)
- Constellation —
- Country Russia
Altitude now
—
object decayed
Velocity
—
Inclination
65.04°
Period
89.4 min
89.4 min
Perigee
162km
Apogee
328km
orbit unavailableNo orbital element set on file — decayed 13 Oct 1977.· Metadata updated 11 h ago
Live position
Live position
Live position unavailable — this object re-entered the atmosphere on 13 Oct 1977 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-4 DEBCelestrak Satcat
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- CIS · Commonwealth of Independent States (former USSR)
- Country
- Russia RU
Launch
Launch
- Launch date
- 30 Sept 1977
- COSPAR launch id
- 1977-098
- Launch site
- Baikonur Cosmodrome (Tyuratam)
Objects from the same launch · 5
- COSMOS 957 DEB10388DebrisDecayed
- COSMOS 957 DEB10406DebrisDecayed
- COSMOS 957 DEB10407DebrisDecayed
- COSMOS 95710385PayloadDecayed
- SL-4 R/B10386Rocket 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
- 10387
- COSPAR / international designator
- 1977-098C
- SatelliteIndex id
- sat_01M28X3JMN5K3TYBWDNRY86WPZ
- Canonical slug
- sl-4-deb-10387
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.