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SatelliteIndex

Satellite · NORAD 3141 · COSPAR 1968-017A

EXPLORER 37 (SE-B)

DecayedPayloadLEOUnknown derived

Altitude now

—

object decayed

Velocity

—

Inclination

59.32°

Period

87.5 min

87.5 min

Perigee

145km

Apogee

152km

orbit unavailableNo orbital element set on file — decayed 16 Nov 1990.· Metadata updated 9 h ago

Live position

Live position

Live position unavailable — this object re-entered the atmosphere on 16 Nov 1990 and is no longer tracked.

Mission

Mission & classification

Mission type derived
Unknown
Object type
Payload
SATCAT ops status
Decayed [D]
Radar cross-section
1.4 m²

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • EXPLORER 37 (SE-B)Celestrak Satcat

Ownership

Operator & country

Operator
—
SATCAT owner code
US · United States
Country
United States US

Launch

Launch

Launch page →
Launch date
05 Mar 1968
COSPAR launch id
1968-017
Launch site
Wallops Flight Facility / MARS, Virginia

Objects from the same launch · 4

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

UN Register of Objects Launched into Outer Space (UNOOSA) — connector planned, not yet ingested; registration unavailable

Transparency

Sources & provenance

All sources →

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

All 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
3141
COSPAR / international designator
1968-017A
SatelliteIndex id
sat_01M28X3JJTVJX5H35BATR6H297
Canonical slug
explorer-37-se-b-3141

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.