Satellite · NORAD 21103 · COSPAR 1991-009D
COSMOS 2128
- Operator Russian Ministry of Defence
- Constellation Kosmos (Russian military / government)
- Country Russia
Altitude now
—
no element set
Velocity
—
Inclination
74.03°
Period
115.0 min
115.0 min
Perigee
1,444km
Apogee
1,468km
orbit unavailableNo orbital element set on file.· Metadata updated 12 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
- Military
- Object type
- Payload
- Radar cross-section
- 0.7 m²
- Constellation membership derived
- Kosmos (Russian military / government) via name_pattern
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- COSMOS 2128Celestrak Satcat
Ownership
Operator & country
- Operator
- Russian Ministry of Defence
- SATCAT owner code
- CIS · Commonwealth of Independent States (former USSR)
- Country
- Russia RU
Launch
Launch
- Launch date
- 12 Feb 1991
- COSPAR launch id
- 1991-009
- Launch site
- Plesetsk Cosmodrome
Objects from the same launch · 40+
- SL-8 DEB21109DebrisInactive
- SL-8 DEB21110DebrisInactive
- SL-8 DEB21115DebrisInactive
- SL-8 DEB21136DebrisInactive
- SL-8 DEB21137DebrisInactive
- SL-8 DEB21138DebrisInactive
- SL-8 DEB21154DebrisInactive
- SL-8 DEB21155DebrisInactive
- SL-8 DEB21156DebrisInactive
- SL-8 DEB21157DebrisInactive
- SL-8 DEB21158DebrisInactive
- SL-8 DEB21159DebrisInactive
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
- 21103
- COSPAR / international designator
- 1991-009D
- SatelliteIndex id
- sat_01M28X3JPHMZEEK2X1REP5E477
- Canonical slug
- cosmos-2128-21103
Orbit class, mission type and constellation membership are derived by SatelliteIndex (Military) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.