Satellite · NORAD 18701 · COSPAR 1987-105A
COSMOS 1903
- Operator Russian Ministry of Defence
- Constellation Kosmos (Russian military / government)
- Country Russia
Altitude now
—
no element set
Velocity
—
Inclination
69.03°
Period
12.0 h
717.2 min
Perigee
8,472km
Apogee
31,853km
orbit unavailableNo orbital element set on file.· Metadata updated 15 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
- 13.1 m²
- Constellation membership derived
- Kosmos (Russian military / government) via name_pattern
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- COSMOS 1903Celestrak 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
- 21 Dec 1987
- COSPAR launch id
- 1987-105
- Launch site
- Plesetsk Cosmodrome
Objects from the same launch · 4
- SL-6 PLAT18703DebrisDecayed
- SL-6 DEB18977DebrisDecayed
- SL-6 R/B(1)18702Rocket bodyDecayed
- SL-6 R/B(2)18704Rocket bodyInactive
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
CelesTrak SATCATcommunity
Satellite catalog data courtesy of CelesTrak.
last sync 15 h ago
Field provenance
| Field | Source | Observed | Confidence |
|---|---|---|---|
| Canonical Name | CelesTrak SATCAT | 13 Sept 2026 18:59 UTC | 100% |
| Decay Date | CelesTrak SATCAT | 13 Sept 2026 18:59 UTC | 100% |
| Launch Date | CelesTrak SATCAT | 13 Sept 2026 18:59 UTC | 100% |
| Object Type | CelesTrak SATCAT | 13 Sept 2026 18:59 UTC | 100% |
| Owner Code | CelesTrak SATCAT | 13 Sept 2026 18:59 UTC | 100% |
| Status | CelesTrak SATCAT | 13 Sept 2026 18:59 UTC | 100% |
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
- 18701
- COSPAR / international designator
- 1987-105A
- SatelliteIndex id
- sat_01M28X3JP3HXEYJ1YG13G74QND
- Canonical slug
- cosmos-1903-18701
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.