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SatelliteIndex

Satellite · NORAD 48556 · COSPAR 2021-041D

STARLINK-2151

ActivePayloadLEOCommunications derived

Altitude now

471.3km

SGP4 propagation

Velocity

7.63km/s

Inclination

53.16°

Period

94.0 min

94.0 min

Perigee

470km

Apogee

472km

orbit freshOrbit updated 14 h ago · element epoch 11 Sept 2026 12:28 UTC (11.0 h old)· Metadata updated 14 h ago

Live position

Ground track & current position

Propagated client-side every 5 s from the latest element set (SGP4). Accuracy degrades with element age.

Ground track of STARLINK-2151STARLINK-2151
LIVE · SGP4

Loading ground track…

Latitude
5.516° N
Longitude
16.652° E
Altitude
471.3 km
Velocity
7.632 km/s
  • past 45 min
  • next 90 min
  • first fix from server render · element epoch 11 Sept 2026 12:28 UTC

Mission

Mission & classification

Mission type derived
Communications
Object type
Payload
SATCAT ops status
Operational [+]
Radar cross-section
—
Constellation membership derived
Starlink via name_pattern

CelesTrak groups

Aliases

  • STARLINK-2151Celestrak

Ownership

Operator & country

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

Launch

Launch

Launch page →
Launch date
15 May 2021
COSPAR launch id
2021-041
Launch site
Cape Canaveral / Kennedy Space Center (Eastern Range), Florida

Objects from the same launch · 40+

All objects from launch 2021-041 →

Change log

History

FieldChangeSourceDate
Owner Code∅ → USCelestrak Satcat11 Sept 2026 18:53 UTC
Orbit Class∅ → LEOCelestrak11 Sept 2026 18:53 UTC

Regulatory

UN registration

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

Transparency

Sources & provenance

All sources →

  • CelesTrakcommunity

    Orbital data courtesy of CelesTrak (Dr. T.S. Kelso).

    last sync 10 h ago

  • CelesTrak SATCATcommunity

    Satellite catalog data courtesy of CelesTrak.

    last sync 14 h ago

Field provenance

FieldSourceObservedConfidence
Canonical NameCelesTrak SATCAT11 Sept 2026 18:53 UTC100%
Decay DateCelesTrak SATCAT11 Sept 2026 18:53 UTC100%
Launch DateCelesTrak SATCAT11 Sept 2026 18:53 UTC100%
Object TypeCelesTrak SATCAT11 Sept 2026 18:53 UTC100%
Orbital ElementsCelesTrak11 Sept 2026 22:59 UTC100%
Owner CodeCelesTrak SATCAT11 Sept 2026 18:53 UTC100%
StatusCelesTrak SATCAT11 Sept 2026 18:53 UTC100%

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
48556
COSPAR / international designator
2021-041D
SatelliteIndex id
sat_01M28X2SX461ZW1YXXDM0Q8ZGB
Canonical slug
starlink-2151-48556

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