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GEESAT 4-03, 65121

Orbit data source: Space-Track

GEESAT 4-03, 65121 is a payload satellite owned by GeeSpace (CN) in LEO that was launched on Fri, 08 Aug 2025 UTC via a JIELONG-3 launch vehicle from the Yellow Sea Launch Area, China (YSLA). 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/65121?theme=dark&initialShowStats=false

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Identifier

65121, 2025-170C

Orbit

LEO

Country

CN / PRC

Related business

GeeSpace (CN)

Manufacturer

GWCG

Mission

Operational Commercial Navigation

Bus & Motor

GPS100, Unknown motor

Mass

130 kg wet, 130 kg dry

Launch date (UTC)

2025-08-08 (8 months ago)

Launch vehicle

JIELONG-3

Launch site

Yellow Sea Launch Area, China (YSLA)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 1.0 m

Radar Cross Section

0.833 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 GEESAT 4-03
1 65121U 25170C   26095.92999162  .00002591  00000-0  33566-3 0  9992
2 65121  49.9906 149.1386 0020526 145.1652 215.0634 14.83813304 35706

Epoch: 2026-04-05T22:19Z

TLE epoch observation values (Epoch: 2026-04-05T22:19:11.275Z)

Latitude

-0.00006°

Longitude

-19.88678°

Altitude

629.618 km

Speed

7.539 km/s

True Right ascension

09h 56m 33s

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

11:48:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

632.433 km

Perigee altitude

603.713 km

Semi-major axis

6,996.21 km

Eccentricity

0.00205

Inclination

49.9906°

RAAN

149.1386°

Arg. of periapsis

145.1652°

True anomaly

214.92856°

Mean anomaly

215.0634°

Eccentric anomaly

214.99595°

Mean motion

3.70893 °/min

Orbital period

97.06 mins

BSTAR

0.00033566

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Other satellites on launch #170 in the year 2025 (2025-08-08 UTC)

JIELONG 3 DEB, 65130 (Decayed)

GEESAT 4-11, 65129

GEESAT 4-08, 65126

JIELONG 3 R/B, 65131 (Decayed)

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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GEESAT 4-03 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	2026-04-06 06:34:49.920Z	228° WSW	2026-04-06 06:38:49.920Z	156.132° SSE	44.153°	2026-04-06 06:42:49.920Z	58.825° ENE
6 mins	2026-04-06 08:17:49.920Z	288.417° WNW	2026-04-06 08:20:49.920Z	347.586° N	27.179°	2026-04-06 08:23:49.920Z	39.3° NE
5 mins	2026-04-06 10:00:49.920Z	324.933° NNW	2026-04-06 10:02:49.920Z	359.45° N	20.723°	2026-04-06 10:05:49.920Z	48.622° ENE
6 mins	2026-04-06 11:42:49.920Z	326.516° NNW	2026-04-06 11:44:49.920Z	8.715° NNE	31.7°	2026-04-06 11:48:49.920Z	90.082° ESE
7 mins	2026-04-06 13:23:49.920Z	287.76° WNW	2026-04-06 13:26:49.920Z	214.85° SW	36.344°	2026-04-06 13:30:49.920Z	147.754° SSE
6 mins	2026-04-07 05:11:49.920Z	175.908° S	2026-04-07 05:13:49.920Z	140.349° SSE	23.487°	2026-04-07 05:17:49.920Z	77.739° E

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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 GEESAT 4-03, 65121 on other resources

View GEESAT 4-03, 65121 on NASA - NSSDCA Website

View GEESAT 4-03, 65121 on Heavens-Above

View GEESAT 4-03, 65121 on Keep Track

View GEESAT 4-03, 65121 on Celestrak

View GEESAT 4-03, 65121 on Gunter's Space Page

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

GEESAT 4-03, 65121

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-04-05T22:19:11.275Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #170 in the year 2025 (2025-08-08 UTC)

GEESAT 4-03 Visibility forecast

Co-orbital & Co-planar RSOs

Check out GEESAT 4-03, 65121 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago