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SatelliteIndex

Satellite · NORAD 3595 · COSPAR 1968-109A

HEOS-A1

DecayedPayloadHEOUnknown derived

Altitude now

—

object decayed

Velocity

—

Inclination

61.78°

Period

4.7 d

6,704.6 min

Perigee

21,119km

Apogee

201,687km

orbit unavailableNo orbital element set on file — decayed 28 Oct 1975.· Metadata updated 9 h ago

Live position

Live position

Live position unavailable — this object re-entered the atmosphere on 28 Oct 1975 and is no longer tracked.

Mission

Mission & classification

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

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • HEOS-A1Celestrak Satcat

Ownership

Operator & country

Operator
European Space Research Organization
SATCAT owner code
ESRO · European Space Research Organization
Country
—

Launch

Launch

Launch page →
Launch date
05 Dec 1968
COSPAR launch id
1968-109
Launch site
Cape Canaveral / Kennedy Space Center (Eastern Range), Florida

Objects from the same launch · 1

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
3595
COSPAR / international designator
1968-109A
SatelliteIndex id
sat_01M28X3JJW9PR81WW7TEHBCF01
Canonical slug
heos-a1-3595

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.