Satellite · NORAD 1806 · COSPAR 1965-098B
EXPLORER 31 (ISIS-X)
- Operator United States
- Constellation —
- Country United States
Altitude now
—
no element set
Velocity
—
Inclination
79.77°
Period
119.2 min
119.2 min
Perigee
502km
Apogee
2,785km
orbit unavailableNo orbital element set on file.· Metadata updated 9 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
- Radar cross-section
- 0.6 m²
CelesTrak groups
Not listed in any CelesTrak group.
Aliases
- EXPLORER 31 (ISIS-X)Celestrak Satcat
Ownership
Operator & country
- Operator
- —
- SATCAT owner code
- US · United States
- Country
- United States US
Launch
Launch
- Launch date
- 29 Nov 1965
- COSPAR launch id
- 1965-098
Objects from the same launch · 10
- THOR AGENA B DEB1808DebrisDecayed
- THOR AGENA B DEB1944DebrisDecayed
- THOR AGENA B DEB1948DebrisInactive
- THOR AGENA B DEB1951DebrisInactive
- THOR AGENA B DEB2092DebrisInactive
- THOR AGENA B DEB2153DebrisInactive
- ALOUETTE 2 DEB20833DebrisDecayed
- ALOUETTE 2 DEB25058DebrisDecayed
- ALOUETTE 21804PayloadUnknown
- THOR AGENA B R/B1807Rocket 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
- 1806
- COSPAR / international designator
- 1965-098B
- SatelliteIndex id
- sat_01M28X3JJJGW7NN5GJTPMFGRFF
- Canonical slug
- explorer-31-isis-x-1806
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.