▸Orbital parameters

Orbit class	SSO
Inclination	97.5247°
Eccentricity	0.0003246
Period	93.0 min
Apogee	425 km
Perigee	421 km
Mean motion	15.47881197 rev/day
RAAN	2.9864°
Arg of perigee	46.7132°
Mean anomaly	313.4388°
B*	2.3726e-4
Rev at epoch	18,393

▸Two-line element set (TLE)

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

1 55973U 23039A 26188.22406877 .00012257 00000-0 23726-3 0 9997

2 55973 97.5247 2.9864 0003246 46.7132 313.4388 15.47881197183937

▸ source OMM (JSON)

{
  "OBJECT_NAME": "TIANMU-1 03",
  "OBJECT_ID": "2023-039A",
  "EPOCH": "2026-07-07T05:22:39.542+00:00",
  "MEAN_MOTION": 15.47881197,
  "ECCENTRICITY": 0.0003246,
  "INCLINATION": 97.5247,
  "RA_OF_ASC_NODE": 2.9864,
  "ARG_OF_PERICENTER": 46.7132,
  "MEAN_ANOMALY": 313.4388,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 55973,
  "REV_AT_EPOCH": 18393,
  "BSTAR": 0.00023726,
  "MEAN_MOTION_DOT": 0.00012257,
  "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	TIANMU-1 03
Operator	Aerospace Tianmu Satellite Tech. Co. Ltd.HIGHvia GCAT — Jonathan McDowell's General Catalog
Country	China
Launch date	Mar 22, 2023HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	50HIGHvia 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/55973

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