▸Orbital parameters

Orbit class	SSO
Inclination	98.1374°
Eccentricity	0.0005774
Period	97.6 min
Apogee	647 km
Perigee	638 km
Mean motion	14.75857482 rev/day
RAAN	284.3053°
Arg of perigee	225.9166°
Mean anomaly	134.1568°
B*	1.7455e-4
Rev at epoch	75,894

▸Two-line element set (TLE)

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

1 38339U 12025C 26188.25040343 .00001145 00000-0 17455-3 0 9998

2 38339 98.1374 284.3053 0005774 225.9166 134.1568 14.75857482758941

▸ source OMM (JSON)

{
  "OBJECT_NAME": "SDS-4",
  "OBJECT_ID": "2012-025C",
  "EPOCH": "2026-07-07T06:00:34.856+00:00",
  "MEAN_MOTION": 14.75857482,
  "ECCENTRICITY": 0.0005774,
  "INCLINATION": 98.1374,
  "RA_OF_ASC_NODE": 284.3053,
  "ARG_OF_PERICENTER": 225.9166,
  "MEAN_ANOMALY": 134.1568,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 38339,
  "REV_AT_EPOCH": 75894,
  "BSTAR": 0.00017455,
  "MEAN_MOTION_DOT": 0.00001145,
  "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	SDS-4
Operator	Japan Aerospace Exploration AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog Japan Aerospace Exploration AgencyMEDIUMvia Wikidata
Country	Japan
Launch date	May 17, 2012HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	50HIGHvia GCAT — Jonathan McDowell's General Catalog

▸Data quality

Score90 / 100

Claims9

Sources2

TLEavailable

▸Sources

GCAT — Jonathan McDowell's General CatalogCC BY 4.0planet4589.org
WikidataCC0 1.0query.wikidata.org

▸Actions

GET /api/v1/satellites/38339

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