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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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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: 18 hours ago

TLE from 18 hours ago

0 SHIYAN 23 (SY-23)
1 59728U 24089A   26087.71940096  .00000682  00000-0  82290-4 0  9994
2 59728  97.7782  91.1582 0004937  97.8976 262.2801 14.86931172101889

Epoch: 2026-03-28T17:15Z

TLE epoch observation values (Epoch: 2026-03-28T17:15:56.242Z)

Latitude

-0.00001°

Longitude

6.03825°

Altitude

611.03 km

Speed

7.553 km/s

True Right ascension

06h 04m 37s

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

16:21:09

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

608.004 km

Perigee altitude

601.11 km

Semi-major axis

6,982.694 km

Eccentricity

0.00049

Inclination

97.7782°

RAAN

91.1582°

Arg. of periapsis

97.8976°

True anomaly

262.22404°

Mean anomaly

262.2801°

Eccentric anomaly

262.25207°

Mean motion

3.71971 °/min

Orbital period

96.78 mins

BSTAR

0.00008229

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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.
8 mins	2026-03-29 13:12:11.706Z	7.218° NNE	2026-03-29 13:16:11.706Z	283.816° WNW	43.248°	2026-03-29 13:20:11.706Z	201.719° SSW
7 mins	2026-03-30 00:05:11.706Z	159.148° S	2026-03-30 00:08:11.706Z	45.099° ENE	43.911°	2026-03-30 00:12:11.706Z	350.933° N

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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 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: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2026-03-28T17:15:56.242Z)

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: 18 hours ago