Skip to content
SatelliteIndex

Rocket body · NORAD 25911 · COSPAR 1999-049E

SL-4 R/B(1)

DecayedRocket bodyLEORocket body derived
  • Operator Commonwealth of Independent States (former USSR)
  • Constellation —
  • Country Russia

Altitude now

—

object decayed

Velocity

—

Inclination

51.92°

Period

87.6 min

87.6 min

Perigee

131km

Apogee

177km

orbit unavailableNo orbital element set on file — decayed 17 Feb 2000.· Metadata updated 10 h ago

Live position

Live position

Live position unavailable — this object re-entered the atmosphere on 17 Feb 2000 and is no longer tracked.

Mission

Mission & classification

Mission type derived
Rocket body
Object type
Rocket body
SATCAT ops status
Decayed [D]
Radar cross-section
13.5 m²

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • SL-4 R/B(1)Celestrak Satcat

Ownership

Operator & country

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

Launch

Launch

Launch page →
Launch date
22 Sept 1999
COSPAR launch id
1999-049
Launch site
Baikonur Cosmodrome (Tyuratam)

Objects from the same launch · 5

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
25911
COSPAR / international designator
1999-049E
SatelliteIndex id
sat_01M28X3JQB92CNK8DB33HQ83ZZ
Canonical slug
sl-4-r-b-1-25911

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