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SDS-4, 38339

Orbit data source: Space-Track

SDS-4, 38339 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/38339?theme=dark&initialShowStats=false

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Identifier

38339, 2012-025C

Orbit

SSO

Country

JP / JPN

Related business

JAXA (Japan Aerospace Exploration Agency) (JP)

Manufacturer

JAXA

Mission

Operational Civil Technology

Bus & Motor

SDS-1, Unknown motor

Mass

50 kg wet, 50 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, 0.8 m

Radar Cross Section

0.514 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 SDS-4
1 38339U 12025C   25354.57517797  .00001288  00000-0  19739-3 0  9994
2 38339  98.1425  84.4106 0007569 141.3790 218.7961 14.75396660729641

Epoch: 2025-12-20T13:48Z

TLE epoch observation values (Epoch: 2025-12-20T13:48:15.376Z)

Latitude

-0.00006°

Longitude

147.94653°

Altitude

651.045 km

Speed

7.53 km/s

True Right ascension

05h 37m 38s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

19:21:35

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

646.263 km

Perigee altitude

635.638 km

Semi-major axis

7,019.087 km

Eccentricity

0.00076

Inclination

98.1425°

RAAN

84.4106°

Arg. of periapsis

141.379°

True anomaly

218.7418°

Mean anomaly

218.7961°

Eccentric anomaly

218.76894°

Mean motion

3.69081 °/min

Orbital period

97.54 mins

BSTAR

0.00019739

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

H-2A DEB, 54717 (Decayed)

H-2A DEB, 43399 (Decayed)

H-2A DEB, 54722 (Decayed)

H-2A DEB, 54718 (Decayed)

H-2A DEB, 54735 (Decayed)

H-2A DEB, 54728 (Decayed)

KOMPSAT 3, 38338

H-2A DEB, 54739 (Decayed)

H-2A DEB, 54712 (Decayed)

H-2A DEB, 54729 (Decayed)

H-2A DEB, 39007 (Decayed)

H-2A DEB, 54703 (Decayed)

H-2A DEB, 54731 (Decayed)

H-2A DEB, 54719 (Decayed)

GCOM W1, 38337

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SDS-4 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.
8 mins	2025-12-21 06:11:22.956Z	167.951° S	2025-12-21 06:15:22.956Z	186.298° SSW	43.899°	2025-12-21 06:19:22.956Z	345.453° N
4 mins	2025-12-21 18:05:22.956Z	69.687° E	2025-12-21 18:06:22.956Z	86.7° E	17.983°	2025-12-21 18:09:22.956Z	134.314° SE
6 mins	2025-12-21 19:41:22.956Z	338.458° N	2025-12-21 19:43:22.956Z	290.83° WNW	30.628°	2025-12-21 19:47:22.956Z	223.323° SW

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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 SDS-4, 38339 on other resources

View SDS-4, 38339 on NASA - NSSDCA Website

View SDS-4, 38339 on Heavens-Above

View SDS-4, 38339 on Keep Track

View SDS-4, 38339 on Celestrak

View SDS-4, 38339 on Gunter's Space Page

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

SDS-4, 38339

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2025-12-20T13:48:15.376Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

SDS-4 Visibility forecast

Co-orbital & Co-planar RSOs

Check out SDS-4, 38339 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago