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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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<iframe src="https://www.satcat.com/sats-embedded/41556?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/41556?theme=dark&initialShowStats=false

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Identifier

41556, 2016-033A

Orbit

SSO

Country

CN / PRC

Related business

China Aerospace Science and Technology Corporation (CASC) (CN)

Manufacturer

CAST

Mission

Operational Civil Imaging

Bus & Motor

ZY, AOCS 20N

Mass

2,650 kg wet, ~2,600 kg dry

Launch date (UTC)

2016-05-30 (10 years ago)

Launch vehicle

CHANG ZHENG 4B

Launch site

Taiyaun Space Center, China (TSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 5.0 m

Radar Cross Section

10.304 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 ZY 3 2
1 41556U 16033A   26264.94425412  .00003113  00000-0  14195-3 0  9996
2 41556  97.3761 338.8139 0012001 326.2900  33.7571 15.21313543572690

Epoch: 2026-09-21T22:39Z

TLE epoch observation values (Epoch: 2026-09-21T22:39:43.555Z)

Latitude

-0.0001°

Longitude

-1.93438°

Altitude

498.107 km

Speed

7.619 km/s

True Right ascension

22h 35m 15s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

00:59:31

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

507.093 km

Perigee altitude

490.587 km

Semi-major axis

6,876.977 km

Eccentricity

0.0012

Inclination

97.3761°

RAAN

338.8139°

Arg. of periapsis

326.29°

True anomaly

33.83361°

Mean anomaly

33.7571°

Eccentric anomaly

33.79535°

Mean motion

3.80581 °/min

Orbital period

94.59 mins

BSTAR

0.00014195

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Other satellites on launch #33 in the year 2016 (2016-05-30 UTC)

NUSAT 1, 41557 (Decayed)

NUSAT 1 DEB, 43427 (Decayed)

CZ-4B R/B, 41559 (Decayed)

NUSAT 2, 41558 (Decayed)

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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	2026-09-22 18:10:12.440Z	358.553° N	2026-09-22 18:13:12.440Z	262.209° W	52.55°	2026-09-22 18:16:12.440Z	208.322° SW
5 mins	2026-09-23 04:48:12.440Z	139.675° SSE	2026-09-23 04:50:12.440Z	65.607° ENE	50.716°	2026-09-23 04:53:12.440Z	0.461° NNE

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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 ZY 3 2, 41556 on other resources

View ZY 3 2, 41556 on NASA - NSSDCA Website

View ZY 3 2, 41556 on Heavens-Above

View ZY 3 2, 41556 on Keep Track

View ZY 3 2, 41556 on Celestrak

View ZY 3 2, 41556 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

ZY 3 2, 41556

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-09-21T22:39:43.555Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #33 in the year 2016 (2016-05-30 UTC)

ZY 3 2 Visibility forecast

Co-orbital & Co-planar RSOs

Check out ZY 3 2, 41556 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago