Satellite · NORAD 4953 · COSPAR 1971-012A
OPS 5268 (DMSP 5A F3)
- Operator United States
- Constellation —
- Country United States
Altitude now
—
no element set
Velocity
—
Inclination
98.47°
Period
99.9 min
99.9 min
Perigee
725km
Apogee
778km
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
- Unknown
- Object type
- Payload
- SATCAT ops status
- Non-operational [-]
- Radar cross-section
- 0.8 m²
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- OPS 5268 (DMSP 5A F3)Celestrak Satcat
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- US · United States
- Country
- United States US
Launch
Launch
- Launch date
- 17 Feb 1971
- COSPAR launch id
- 1971-012
Objects from the same launch · 4
- OPS 5268 (CALSPHERE 3)4957PayloadDecayed
- OPS 5268 (CALSPHERE 4)4958PayloadDecayed
- OPS 5268 (CALSPHERE 5)4963PayloadDecayed
- THOR BURNER 2 R/B4954Rocket 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
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
- 4953
- COSPAR / international designator
- 1971-012A
- SatelliteIndex id
- sat_01M28X3JK4HE4M0SFWDV4926P8
- Canonical slug
- ops-5268-dmsp-5a-f3-4953
Orbit class, mission type and constellation membership are derived by SatelliteIndex (Unknown) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.