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SHIYAN 20B (SY-20B), 54700

Orbit data source: Space-Track

SHIYAN 20B (SY-20B), 54700 is a payload satellite owned by SAST (CN) in LEO that was launched on Mon, 12 Dec 2022 UTC via a CHANG ZHENG 4C launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). 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/54700?theme=dark&initialShowStats=false

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Identifier

54700, 2022-169B

Orbit

LEO

Country

CN / PRC

Related business

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

Manufacturer

SAST

Mission

Operational Defense Technology

Bus & Motor

Unknown

Mass

~500 kg wet, ~500 kg dry

Launch date (UTC)

2022-12-12 (4 years ago)

Launch vehicle

CHANG ZHENG 4C

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 2.5 m

Radar Cross Section

11.063 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 SHIYAN 20B (SY-20B)
1 54700U 22169B   26172.50414081 -.00000037  00000-0  38960-4 0  9998
2 54700  59.9959 226.2463 0010130 210.9586 149.0853 14.29543019183971

Epoch: 2026-06-21T12:05Z

TLE epoch observation values (Epoch: 2026-06-21T12:05:57.765Z)

Latitude

-0.00005°

Longitude

135.05212°

Altitude

801.025 km

Speed

7.45 km/s

True Right ascension

15h 04m 59s

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

21:31:50

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

799.76 km

Perigee altitude

785.232 km

Semi-major axis

7,170.633 km

Eccentricity

0.00101

Inclination

59.9959°

RAAN

226.2463°

Arg. of periapsis

210.9586°

True anomaly

149.14487°

Mean anomaly

149.0853°

Eccentric anomaly

149.11509°

Mean motion

3.57443 °/min

Orbital period

100.72 mins

BSTAR

0.00003896

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Other satellites on launch #169 in the year 2022 (2022-12-12 UTC)

CZ-4C R/B, 54701

SHIYAN 20A DEB, 55716

SHIYAN 20A (SY-20A), 54699

CZ-4C DEB, 54702

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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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SHIYAN 20B (SY-20B) 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.
7 mins	2026-06-22 12:04:48.912Z	344.737° N	2026-06-22 12:08:48.912Z	33.086° NE	19.442°	2026-06-22 12:11:48.912Z	72.026° E
9 mins	2026-06-22 13:49:48.912Z	320.756° NNW	2026-06-22 13:53:48.912Z	163.438° S	44.965°	2026-06-22 13:58:48.912Z	143.028° SSE
7 mins	2026-06-23 04:31:48.912Z	167.706° S	2026-06-23 04:34:48.912Z	117.978° SE	28.124°	2026-06-23 04:38:48.912Z	61.752° ENE
9 mins	2026-06-23 06:14:48.912Z	249.865° W	2026-06-23 06:18:48.912Z	313.05° NW	34.309°	2026-06-23 06:23:48.912Z	26.891° NE

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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 20B (SY-20B), 54700 on other resources

View SHIYAN 20B (SY-20B), 54700 on NASA - NSSDCA Website

View SHIYAN 20B (SY-20B), 54700 on Heavens-Above

View SHIYAN 20B (SY-20B), 54700 on Keep Track

View SHIYAN 20B (SY-20B), 54700 on Celestrak

View SHIYAN 20B (SY-20B), 54700 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 20B (SY-20B), 54700

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-06-21T12:05:57.765Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #169 in the year 2022 (2022-12-12 UTC)

SHIYAN 20B (SY-20B) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SHIYAN 20B (SY-20B), 54700 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago