Skip to content
SatelliteIndex

Debris object · NORAD 10543 · COSPAR 1977-124C

SL-4 DEB

DecayedDebrisLEODebris derived
  • Operator Commonwealth of Independent States (former USSR)
  • Constellation —
  • Country Russia

Altitude now

—

object decayed

Velocity

—

Inclination

71.46°

Period

89.2 min

89.2 min

Perigee

193km

Apogee

271km

orbit unavailableNo orbital element set on file — decayed 31 Dec 1977.· Metadata updated 15 h ago

Live position

Live position

Live position unavailable — this object re-entered the atmosphere on 31 Dec 1977 and is no longer tracked.

Mission

Mission & classification

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

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • SL-4 DEBCelestrak Satcat

Ownership

Operator & country

Operator
—
SATCAT owner code
CIS · Commonwealth of Independent States (former USSR)
Country
Russia RU

Launch

Launch

Launch page →
Launch date
27 Dec 1977
COSPAR launch id
1977-124
Launch site
Baikonur Cosmodrome (Tyuratam)

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
10543
COSPAR / international designator
1977-124C
SatelliteIndex id
sat_01M28X3JMPJS2N5XY18A138HYY
Canonical slug
sl-4-deb-10543

Orbit class, mission type and constellation membership are derived by SatelliteIndex (Debris) — see the methodology. Positions are propagated estimates, not tracking measurements; never use them for conjunction assessment.