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SatelliteIndex

Satellite · NORAD 41335 · COSPAR 2016-011A

SENTINEL-3A

ActivePayloadLEOEarth observation derived

Altitude now

823.4km

SGP4 propagation

Velocity

7.44km/s

Inclination

98.63°

Period

100.9 min

100.9 min

Perigee

802km

Apogee

803km

orbit freshOrbit updated 8 h ago · element epoch 11 Sept 2026 14:47 UTC (6.1 h old)· Metadata updated 8 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 SENTINEL-3ASENTINEL-3A
LIVE · SGP4

Loading ground track…

Latitude
52.476° S
Longitude
175.258° W
Altitude
823.4 km
Velocity
7.440 km/s
  • past 45 min
  • next 90 min
  • first fix from server render · element epoch 11 Sept 2026 14:47 UTC

Mission

Mission & classification

Mission type derived
Earth observation
Object type
Payload
SATCAT ops status
Operational [+]
Radar cross-section
4.0 m²
Constellation membership derived
Copernicus Sentinel via name_pattern

CelesTrak groups

Aliases

  • SENTINEL-3ACelestrak

Ownership

Operator & country

SATCAT owner code
ESA · European Space Agency
Country

Launch

Launch

Launch page
Launch date
16 Feb 2016
COSPAR launch id
2016-011

Objects from the same launch · 1

Change log

History

FieldChangeSourceDate
Owner CodeESACelestrak Satcat11 Sept 2026 18:53 UTC
Orbit ClassLEOCelestrak11 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 8 h ago

  • CelesTrak SATCATcommunity

    Satellite catalog data courtesy of CelesTrak.

    last sync 8 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 18:53 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
41335
COSPAR / international designator
2016-011A
SatelliteIndex id
sat_01M28X2SWX4DFCTBNEK87EKHDJ
Canonical slug
sentinel-3a-41335

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