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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

Last TLE update

1 day ago

Origin

China National Space Administration (CN / PRC)

Manufacturer

CAST

Mission

Operational spacecraft

Bus & Motor

SY23, Unknown motor

Mass

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

Launch date (UTC)

2024-05-11 (1 year ago)

Launch vehicle

CHANG ZHENG 4C

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago

0 SHIYAN 23 (SY-23)
1 59728U 24089A   25223.75891841  .00000628  00000-0  76861-4 0  9999
2 59728  97.7715 227.1186 0004618 115.8752 244.2940 14.86592292 67864

Epoch: 2025-08-11T18:12Z

TLE epoch observation values (Epoch: 2025-08-11T18:12:50.55Z)

Latitude

-0.00008°

Longitude

-6.55332°

Altitude

613.028 km

Speed

7.552 km/s

True Right ascension

15h 08m 28s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-68.96853°

Longitude

153.80696°

Altitude

636.868 km

Speed

7.537 km/s

Apparent Right ascension

23h 14m 51s

Apparent Declination

-58° 03' 46"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

09:59:34

Azimuth

207.375° SW

Elevation

-68.213°

Doppler factor

Orbital elements

Apogee altitude

608.844 km

Perigee altitude

602.394 km

Semi-major axis

6,983.756 km

Eccentricity

0.00046

Inclination

97.7715°

RAAN

227.1186°

Arg. of periapsis

115.8752°

True anomaly

244.24633°

Mean anomaly

244.294°

Eccentric anomaly

244.27016°

Mean motion

3.71886 °/min

Orbital period

96.8 mins

BSTAR

0.000076861

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

CZ-4C R/B, 59729

SHIYAN 23 (SY-23) Visibility forecast

Observer location: undefined°, undefined°
Set Observer location

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	2025-08-12 23:26:02.280Z	119.067° SE	2025-08-12 23:29:02.280Z	70.482° E	21.809°	2025-08-12 23:32:02.280Z	19.685° NNE
5 mins	2025-08-13 01:03:02.280Z	224.014° SW	2025-08-13 01:05:02.280Z	267.961° W	24.849°	2025-08-13 01:08:02.280Z	319.459° NNW
6 mins	2025-08-13 12:48:02.280Z	32.276° NE	2025-08-13 12:51:02.280Z	117.315° SE	36.144°	2025-08-13 12:54:02.280Z	171.515° S

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.