▸Orbital parameters

Orbit class	GEO
Inclination	0.0383°
Eccentricity	0.0001040
Period	1436.2 min
Apogee	35,792 km
Perigee	35,783 km
Mean motion	1.00267947 rev/day
RAAN	27.2733°
Arg of perigee	77.5296°
Mean anomaly	97.0772°
B*	0.0000e+0
Rev at epoch	741

▸Two-line element set (TLE)

EPOCH Jul 7, 2026SOURCE CelesTrakDERIVED currentUPDATED Jul 7, 2026

1 53961U 22123B 26188.13249747 .00000000 00000-0 00000-0 0 9996

2 53961 0.0383 27.2733 0001040 77.5296 97.0772 1.00267947 7415

▸ source OMM (JSON)

{
  "OBJECT_NAME": "SES-21",
  "OBJECT_ID": "2022-123B",
  "EPOCH": "2026-07-07T03:10:47.781+00:00",
  "MEAN_MOTION": 1.00267947,
  "ECCENTRICITY": 0.000104,
  "INCLINATION": 0.0383,
  "RA_OF_ASC_NODE": 27.2733,
  "ARG_OF_PERICENTER": 77.5296,
  "MEAN_ANOMALY": 97.0772,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 53961,
  "REV_AT_EPOCH": 741,
  "BSTAR": 0,
  "MEAN_MOTION_DOT": 0,
  "MEAN_MOTION_DDOT": 0
}

Reconstructed from CelesTrak OMM mean-elements (element-set number is a placeholder). TLE/OMM data is approximate. Not for operational use or collision avoidance.

▸Satellite metadata

Name	SES-21
Operator	SES S.A. (Princeton)HIGHvia GCAT — Jonathan McDowell's General Catalog
Country	United States
Launch date	Oct 4, 2022HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	1768HIGHvia GCAT — Jonathan McDowell's General Catalog
Mission purpose	—
Object class	PAYLOADHIGH

▸Data quality

Score85 / 100

Claims7

Sources1

TLEavailable

▸Sources

GCAT — Jonathan McDowell's General CatalogCC BY 4.0planet4589.org

▸Actions

GET /api/v1/satellites/53961

//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.