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GCOM W1, 38337

Orbit data source: Space-Track

GCOM W1, 38337 is a payload satellite owned by JAXA (JP) in SSO that was launched on Thu, 17 May 2012 UTC via an H-IIA 202 launch vehicle from the Tanegashima Space Center (TNSTA). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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https://www.satcat.com/sats-embedded/38337?theme=dark&initialShowStats=false

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Identifier

38337, 2012-025A

Orbit

SSO

Country

JP / JPN

Related business

JAXA (Japan Aerospace Exploration Agency) (JP)

Manufacturer

NECTF?

Mission

Operational Civil Science

Bus & Motor

GCOM, AOCS

Mass

1,991 kg wet, 1,841 kg dry

Launch date (UTC)

2012-05-17 (14 years ago)

Launch vehicle

H-IIA 202

Launch site

Tanegashima Space Center (TNSTA)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan + 1 Dish, 8.8 m

Radar Cross Section

35.969 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 GCOM W1
1 38337U 12025A   26263.42409126  .00000269  00000-0  69692-4 0  9994
2 38337  98.2076 202.5546 0001535  84.7968  26.9490 14.57137433762900

Epoch: 2026-09-20T10:10Z

TLE epoch observation values (Epoch: 2026-09-20T10:10:41.484Z)

Latitude

66.90579°

Longitude

-109.77664°

Altitude

713.019 km

Speed

7.506 km/s

True Right ascension

02h 48m 51s

True Declination

66° 46' 50"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

14:40:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

700.604 km

Perigee altitude

698.431 km

Semi-major axis

7,077.654 km

Eccentricity

0.00015

Inclination

98.2076°

RAAN

202.5546°

Arg. of periapsis

84.7968°

True anomaly

26.95697°

Mean anomaly

26.949°

Eccentric anomaly

26.95299°

Mean motion

3.6451 °/min

Orbital period

98.76 mins

BSTAR

0.000069692

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Other satellites on launch #25 in the year 2012 (2012-05-17 UTC)

H-2A DEB, 54734 (Decayed)

H-2A DEB, 54722 (Decayed)

H-2A DEB, 43398 (Decayed)

H-2A DEB, 39004 (Decayed)

H-2A DEB, 54703 (Decayed)

H-2A R/B, 38341

H-2A DEB, 54712 (Decayed)

H-2A DEB, 54717 (Decayed)

H-2A DEB, 54723 (Decayed)

H-2A DEB, 54736 (Decayed)

HORYU 2, 38340

SDS-4, 38339

H-2A DEB, 43397 (Decayed)

H-2A DEB, 54719 (Decayed)

H-2A DEB, 54730 (Decayed)

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GCOM W1 Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
4 mins	2026-09-21 07:42:31.684Z	66.38° ENE	2026-09-21 07:44:31.684Z	93.904° ESE	14.875°	2026-09-21 07:46:31.684Z	120.575° SE
7 mins	2026-09-21 09:19:31.684Z	356.119° N	2026-09-21 09:22:31.684Z	281.02° WNW	54.092°	2026-09-21 09:26:31.684Z	212.149° SW
4 mins	2026-09-21 18:48:31.684Z	86.408° E	2026-09-21 18:50:31.684Z	57.007° ENE	16.215°	2026-09-21 18:52:31.684Z	30.527° NE
7 mins	2026-09-21 20:24:31.684Z	190.467° SSW	2026-09-21 20:27:31.684Z	267.782° W	53.485°	2026-09-21 20:31:31.684Z	335.816° NNW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out GCOM W1, 38337 on other resources

View GCOM W1, 38337 on NASA - NSSDCA Website

View GCOM W1, 38337 on Heavens-Above

View GCOM W1, 38337 on Keep Track

View GCOM W1, 38337 on Celestrak

View GCOM W1, 38337 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

GCOM W1, 38337

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-09-20T10:10:41.484Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #25 in the year 2012 (2012-05-17 UTC)

GCOM W1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out GCOM W1, 38337 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago