▸Orbital parameters

Orbit class	SSO
Inclination	97.3175°
Eccentricity	0.0015082
Period	94.3 min
Apogee	495 km
Perigee	474 km
Mean motion	15.27132913 rev/day
RAAN	229.8359°
Arg of perigee	133.3577°
Mean anomaly	226.8921°
B*	2.3304e-4
Rev at epoch	25,705

▸Two-line element set (TLE)

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

1 49402U 21102H 26188.06319663 .00006147 00000-0 23304-3 0 9997

2 49402 97.3175 229.8359 0015082 133.3577 226.8921 15.27132913257059

▸ source OMM (JSON)

{
  "OBJECT_NAME": "KOSEN-1",
  "OBJECT_ID": "2021-102H",
  "EPOCH": "2026-07-07T01:31:00.189+00:00",
  "MEAN_MOTION": 15.27132913,
  "ECCENTRICITY": 0.0015082,
  "INCLINATION": 97.3175,
  "RA_OF_ASC_NODE": 229.8359,
  "ARG_OF_PERICENTER": 133.3577,
  "MEAN_ANOMALY": 226.8921,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 49402,
  "REV_AT_EPOCH": 25705,
  "BSTAR": 0.00023304,
  "MEAN_MOTION_DOT": 0.00006147,
  "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	KOSEN-1
Operator	Kochi Technical CollegeHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree Kochi National College of TechnologyMEDIUMvia Wikidata
Country	JapanMEDIUMvia Wikidata
Launch date	Nov 9, 2021HIGHvia GCAT — Jonathan McDowell's General Catalog
Launch mass (kg)	3HIGH

▸Data quality

Score90 / 100

Claims10

Sources2

TLEavailable

▸Sources

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

▸Actions

GET /api/v1/satellites/49402

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