Satellite · NORAD 50319 · COSPAR 2021-128A
INMARSAT 6-F1
- Operator Viasat
- Constellation Viasat / Inmarsat fleet
- Country United Kingdom
Altitude now
35,786.5km
SGP4 propagation
Velocity
3.07km/s
Inclination
0.02°
Period
23.9 h
1,436.1 min
Perigee
35,786km
Apogee
35,787km
orbit freshOrbit updated 8 h ago · element epoch 11 Sept 2026 14:21 UTC (5.2 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.
Loading ground track…
- Latitude
- 0.034° S
- Longitude
- 83.733° E
- Altitude
- 35786.5 km
- Velocity
- 3.075 km/s
- past 45 min
- next 90 min
- first fix from server render · element epoch 11 Sept 2026 14:21 UTC
Mission
Mission & classification
- Mission type derived
- Communications
- Object type
- Payload
- SATCAT ops status
- Operational [+]
- Radar cross-section
- —
- Constellation membership derived
- Viasat / Inmarsat fleet via name_pattern
Ownership
Operator & country
- Operator
- Viasat
- SATCAT owner code
- IM · Inmarsat
- Country
- United Kingdom GB
Launch
Launch
- Launch date
- 22 Dec 2021
- COSPAR launch id
- 2021-128
- Launch site
- Tanegashima Space Center
Objects from the same launch · 1
- H-2A R/B50320Rocket bodyDecayed
Change log
History
| Field | Change | Source | Date |
|---|---|---|---|
| Country Code | US → GB | Celestrak Satcat | 11 Sept 2026 18:53 UTC |
| Owner Code | ∅ → IM | Celestrak Satcat | 11 Sept 2026 18:53 UTC |
| Orbit Class | ∅ → GEO | Celestrak | 11 Sept 2026 18:53 UTC |
Regulatory
UN registration
Transparency
Sources & provenance
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
| Field | Source | Observed | Confidence |
|---|---|---|---|
| Canonical Name | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Decay Date | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Launch Date | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Object Type | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Orbital Elements | CelesTrak | 11 Sept 2026 18:53 UTC | 100% |
| Owner Code | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
| Status | CelesTrak SATCAT | 11 Sept 2026 18:53 UTC | 100% |
Timeline
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
- 50319
- COSPAR / international designator
- 2021-128A
- SatelliteIndex id
- sat_01M28X2SX7AZFC54PF92GAHP6H
- Canonical slug
- inmarsat-6-f1-50319
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.