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SHIYAN 10 (SY-10), 49258

Orbit data source: Space-Track

SHIYAN 10 (SY-10), 49258 is a payload satellite owned by SAST (CN) in HEO that was launched on Mon, 27 Sep 2021 UTC via a CHANG ZHENG 3B launch vehicle from the Xichang Space Center, China (XSC). 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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Iframe URL

https://www.satcat.com/sats-embedded/49258?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

49258, 2021-087A

Orbit

HEO

Country

CN / PRC

Related business

China Aerospace Science and Technology Corporation (CASC) (CN)

Manufacturer

SAST

Mission

Operational Civil Tech/Early Warn

Bus & Motor

SY10?, DFH-4 LAE

Mass

~4,600 kg wet, ~2,500 kg dry

Launch date (UTC)

2021-09-27 (5 years ago)

Launch vehicle

CHANG ZHENG 3B

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 15.0 m

Radar Cross Section

34.063 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 weeks ago

TLE from 2 weeks ago

0 SHIYAN 10 (SY-10)
1 49258U 21087A   26159.42816681  .00000790  00000-0  00000-0 0  9991
2 49258  63.1127 221.0467 6930785 269.8654  17.6440  2.00652330 34358

Epoch: 2026-06-08T10:16Z

TLE epoch observation values (Epoch: 2026-06-08T10:16:33.612Z)

Latitude

0.00001°

Longitude

170.10117°

Altitude

7,474.18 km

Speed

6.523 km/s

True Right ascension

14h 44m 13s

True Declination

0° 00' 00"

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

21:25:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

38,575.938 km

Perigee altitude

1,771.144 km

Semi-major axis

26,551.678 km

Eccentricity

0.69308

Inclination

63.1127°

RAAN

221.0467°

Arg. of periapsis

269.8654°

True anomaly

90.38283°

Mean anomaly

17.644°

Eccentric anomaly

46.40231°

Mean motion

0.50166 °/min

Orbital period

717.62 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #87 in the year 2021 (2021-09-27 UTC)

CZ-3B R/B, 49259 (Decayed)

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SHIYAN 10 (SY-10) 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.
545 mins	2026-06-22 10:23:21.079Z	297.201° NW	2026-06-22 15:37:21.079Z	322.759° NNW	29.988°	2026-06-22 19:28:21.079Z	277.756° WNW
410 mins	2026-06-22 23:00:21.079Z	43.671° NE	2026-06-23 02:04:21.079Z	30.33° NE	20.033°	2026-06-23 05:50:21.079Z	40.287° NE
38 mins	2026-06-23 09:45:21.079Z	286.132° WNW	2026-06-23 10:23:21.079Z	298.486° NW	20.702°	2026-06-23 10:23:21.079Z	298.486° NW

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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 SHIYAN 10 (SY-10), 49258 on other resources

View SHIYAN 10 (SY-10), 49258 on NASA - NSSDCA Website

View SHIYAN 10 (SY-10), 49258 on Heavens-Above

View SHIYAN 10 (SY-10), 49258 on Keep Track

View SHIYAN 10 (SY-10), 49258 on Celestrak

View SHIYAN 10 (SY-10), 49258 on Gunter's Space Page

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

SHIYAN 10 (SY-10), 49258

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 weeks ago

TLE from 2 weeks ago

TLE epoch observation values (Epoch: 2026-06-08T10:16:33.612Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #87 in the year 2021 (2021-09-27 UTC)

SHIYAN 10 (SY-10) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SHIYAN 10 (SY-10), 49258 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 weeks ago