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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
41556 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
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: 5 hours ago
TLE from 5 hours ago
0 ZY 3 2
1 41556U 16033A 25299.16538545 .00009464 00000-0 42790-3 0 9996
2 41556 97.4082 14.1117 0012907 60.4603 299.7918 15.21068464522401Epoch: 2025-10-26T03:58Z
TLE epoch observation values (Epoch: 2025-10-26T03:58:09.302Z)
Latitude
-0.00002°
Longitude
-80.21255°
Altitude
501.303 km
Speed
7.616 km/s
True Right ascension
00h 56m 26s
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
04:11:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
508.458 km
Perigee altitude
490.704 km
Semi-major axis
6,877.718 km
Eccentricity
0.00129
Inclination
97.4082°
RAAN
14.1117°
Arg. of periapsis
60.4603°
True anomaly
299.66334°
Mean anomaly
299.7918°
Eccentric anomaly
299.72758°
Mean motion
3.80519 °/min
Orbital period
94.61 mins
BSTAR
0.0004279
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #33 in the year 2016 (2016-05-30 UTC)
Did you know?
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
Loading 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-10-26 17:10:37.896Z | 49.993° ENE | 2025-10-26 17:12:37.896Z | 85.557° E | 18.447° | 2025-10-26 17:15:37.896Z | 141.84° SSE |
| 4 mins | 2025-10-26 18:45:37.896Z | 317.606° NNW | 2025-10-26 18:46:37.896Z | 293.231° NW | 21.806° | 2025-10-26 18:49:37.896Z | 236.292° WSW |
| 5 mins | 2025-10-27 05:22:37.896Z | 187.918° SSW | 2025-10-27 05:24:37.896Z | 291.471° WNW | 40.252° | 2025-10-27 05:27:37.896Z | 340.502° 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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|