Rocket body · NORAD 9921 · COSPAR 1977-027D
SL-6 R/B(2)
- Operator Commonwealth of Independent States (former USSR)
- Constellation —
- Country Russia
Altitude now
—
no element set
Velocity
—
Inclination
72.19°
Period
12.1 h
724.0 min
Perigee
6,284km
Apogee
34,375km
orbit unavailableNo orbital element set on file.· Metadata updated 16 h ago
Live position
Live position
Live position unavailable — no public orbital element set exists for this object (it may be classified, untracked or too small to catalogue).
Mission
Mission & classification
- Mission type derived
- Rocket body
- Object type
- Rocket body
- Radar cross-section
- 5.5 m²
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- SL-6 R/B(2)Celestrak Satcat
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- CIS · Commonwealth of Independent States (former USSR)
- Country
- Russia RU
Launch
Launch
- Launch date
- 11 Apr 1977
- COSPAR launch id
- 1977-027
- Launch site
- Plesetsk Cosmodrome
Objects from the same launch · 8
- SL-6 PLAT9913DebrisDecayed
- COSMOS 903 DEB10946DebrisDecayed
- COSMOS 903 DEB27882DebrisDecayed
- COSMOS 903 DEB32961DebrisDecayed
- COSMOS 903 DEB32962DebrisInactive
- COSMOS 903 DEB32963DebrisInactive
- COSMOS 9039911PayloadDecayed
- SL-6 R/B(1)9912Rocket 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
- 9921
- COSPAR / international designator
- 1977-027D
- SatelliteIndex id
- sat_01M28X3JMJDCJ7W2ZJQYF7GZFT
- Canonical slug
- sl-6-r-b-2-9921
Orbit class, mission type and constellation membership are derived by SatelliteIndex (Rocket body) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.