Skip to content
SatelliteIndex

Rocket body · NORAD 21121 · COSPAR 1991-012D

SL-6 R/B(2)

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

Altitude now

—

no element set

Velocity

—

Inclination

64.64°

Period

11.7 h

699.7 min

Perigee

2,768km

Apogee

36,691km

orbit unavailableNo orbital element set on file.· Metadata updated 16 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
Rocket body
Object type
Rocket body
Radar cross-section
7.6 m²

CelesTrak groups

Not listed in any CelesTrak group.

Aliases

  • SL-6 R/B(2)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
15 Feb 1991
COSPAR launch id
1991-012
Launch site
Plesetsk Cosmodrome

Objects from the same launch · 3

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
21121
COSPAR / international designator
1991-012D
SatelliteIndex id
sat_01M28X3JPHMZEEK2X1REP5E47S
Canonical slug
sl-6-r-b-2-21121

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.