ZY 3 2, 41556
Orbit data source: Space-Track
ZY 3 2, 41556 is a Chinese payload satellite in SSO that was launched on Mon, 30 May 2016 UTC via a CHANG ZHENG 4B launch vehicle from the Taiyaun Space Center, China (TSC). 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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41556 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Civil Imaging
Bus & Motor
ZY, AOCS 20N
Mass
2,650 kg wet, ~2,600 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 5.0 m
Radar Cross Section
10.304 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 ZY 3 2
1 41556U 16033A 25261.01555343 .00006898 00000-0 31197-3 0 9991
2 41556 97.4130 336.5673 0010704 186.2973 173.8130 15.21187861516609Epoch: 2025-09-18T00:22Z
TLE epoch observation values (Epoch: 2025-09-18T00:22:23.816Z)
Latitude
-0.00001°
Longitude
-26.21515°
Altitude
512.672 km
Speed
7.603 km/s
True Right ascension
22h 26m 16s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
23:03:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
506.583 km
Perigee altitude
491.859 km
Semi-major axis
6,877.358 km
Eccentricity
0.00107
Inclination
97.413°
RAAN
336.5673°
Arg. of periapsis
186.2973°
True anomaly
173.8262°
Mean anomaly
173.813°
Eccentric anomaly
173.8196°
Mean motion
3.80549 °/min
Orbital period
94.6 mins
BSTAR
0.00031197
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Other satellites on launch #33 in the year 2016 (2016-05-30 UTC)
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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.ZY 3 2 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 | 2025-09-18 18:17:46.220Z | 359.293° N | 2025-09-18 18:20:46.220Z | 292.441° WNW | 37.437° | 2025-09-18 18:23:46.220Z | 212.461° SW |
| 6 mins | 2025-09-19 04:55:46.220Z | 148.079° SSE | 2025-09-19 04:57:46.220Z | 104.803° ESE | 38.269° | 2025-09-19 05:01:46.220Z | 357.057° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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