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SHIYAN 23 (SY-23), 59728

Orbit data source: Space-Track

SHIYAN 23 (SY-23), 59728 is a payload satellite owned by CNSA (CN) in SSO that was launched on Sat, 11 May 2024 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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<iframe src="https://www.satcat.com/sats-embedded/59728?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/59728?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

59728, 2024-089A

Orbit

SSO

Country

CN / PRC

Related business

China National Space Administration (CN)

Manufacturer

CAST

Mission

Operational Defense Technology

Bus & Motor

SY23, Unknown motor

Mass

~1,000 kg wet, ~1,000 kg dry

Launch date (UTC)

2024-05-11 (2 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

4.795 m², Large (>1 m²)

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

TLE from 2 days ago

0 SHIYAN 23 (SY-23)
1 59728U 24089A   26311.72009389  .00000481  00000-0  59404-4 0  9994
2 59728  97.7827 310.6202 0005403  85.2131 274.9702 14.87182119135179

Epoch: 2026-11-07T17:16Z

TLE epoch observation values (Epoch: 2026-11-07T17:16:56.112Z)

Latitude

-0.00001°

Longitude

4.4651°

Altitude

609.455 km

Speed

7.555 km/s

True Right ascension

20h 42m 28s

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

00:52:19

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

607.543 km

Perigee altitude

599.999 km

Semi-major axis

6,981.908 km

Eccentricity

0.00054

Inclination

97.7827°

RAAN

310.6202°

Arg. of periapsis

85.2131°

True anomaly

274.90852°

Mean anomaly

274.9702°

Eccentric anomaly

274.93936°

Mean motion

3.72033 °/min

Orbital period

96.77 mins

BSTAR

0.000059404

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Other satellites on launch #89 in the year 2024 (2024-05-11 UTC)

CZ-4C R/B, 59729

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SHIYAN 23 (SY-23) 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.
6 mins	2026-11-10 12:04:22.662Z	47.384° ENE	2026-11-10 12:07:22.662Z	96.87° ESE	21.627°	2026-11-10 12:10:22.662Z	143.887° SSE
5 mins	2026-11-10 13:41:22.662Z	329.775° NNW	2026-11-10 13:43:22.662Z	282.564° WNW	29.682°	2026-11-10 13:46:22.662Z	232.165° WSW
6 mins	2026-11-11 00:32:22.662Z	197.596° SSW	2026-11-11 00:35:22.662Z	279.744° WNW	42.571°	2026-11-11 00:38:22.662Z	331.071° 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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Check out SHIYAN 23 (SY-23), 59728 on other resources

View SHIYAN 23 (SY-23), 59728 on NASA - NSSDCA Website

View SHIYAN 23 (SY-23), 59728 on Heavens-Above

View SHIYAN 23 (SY-23), 59728 on Keep Track

View SHIYAN 23 (SY-23), 59728 on Celestrak

View SHIYAN 23 (SY-23), 59728 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 23 (SY-23), 59728

Orbit data source: Space-Track

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

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-11-07T17:16:56.112Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #89 in the year 2024 (2024-05-11 UTC)

SHIYAN 23 (SY-23) Visibility forecast

Co-orbital & Co-planar RSOs

Check out SHIYAN 23 (SY-23), 59728 on other resources

Documentation

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