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PAYLOAD B, 49113

Orbit data source: Space-Track

PAYLOAD B, 49113 is a payload satellite owned by CAST (CN) in LEO that was launched on Tue, 24 Aug 2021 UTC via a CHANG ZHENG 2C/YZ-1S 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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<iframe src="https://www.satcat.com/sats-embedded/49113?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/49113?theme=dark&initialShowStats=false

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Identifier

49113, 2021-076B

Orbit

LEO

Country

CN / PRC

Related business

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

Manufacturer

CAST?

Mission

Operational Civil Communications

Bus & Motor

Unknown

Mass

~50 kg wet, ~50 kg dry

Launch date (UTC)

2021-08-24 (5 years ago)

Launch vehicle

CHANG ZHENG 2C/YZ-1S

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 0.5 m

Radar Cross Section

0.446 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 PAYLOAD B
1 49113U 21076B   26172.54330796  .00000317  00000-0  17092-3 0  9992
2 49113  86.4026  81.2832 0018524 186.6811 173.4127 14.09466365248048

Epoch: 2026-06-21T13:02Z

TLE epoch observation values (Epoch: 2026-06-21T13:02:21.807Z)

Latitude

-0.00004°

Longitude

-24.04973°

Altitude

877.539 km

Speed

7.407 km/s

True Right ascension

05h 25m 07s

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

21:27:59

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

871.602 km

Perigee altitude

844.793 km

Semi-major axis

7,236.335 km

Eccentricity

0.00185

Inclination

86.4026°

RAAN

81.2832°

Arg. of periapsis

186.6811°

True anomaly

173.437°

Mean anomaly

173.4127°

Eccentric anomaly

173.42485°

Mean motion

3.52586 °/min

Orbital period

102.1 mins

BSTAR

0.00017092

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Other satellites on launch #76 in the year 2021 (2021-08-24 UTC)

RSW-01, 49112

RSW-02, 49114

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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.

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PAYLOAD B 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.
10 mins	2026-06-22 18:06:59.062Z	164.592° S	2026-06-22 18:11:59.062Z	70.944° E	40.568°	2026-06-22 18:16:59.062Z	10.551° NNE
6 mins	2026-06-22 19:51:59.062Z	254.901° W	2026-06-22 19:54:59.062Z	291.152° WNW	16.417°	2026-06-22 19:57:59.062Z	324.109° NNW
6 mins	2026-06-23 04:49:59.062Z	38.959° NE	2026-06-23 04:52:59.062Z	77.956° E	19.515°	2026-06-23 04:55:59.062Z	115.883° SE
8 mins	2026-06-23 06:31:59.062Z	338.51° N	2026-06-23 06:35:59.062Z	260.65° W	36.163°	2026-06-23 06:39:59.062Z	204.249° SW

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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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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 descending order

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out PAYLOAD B, 49113 on other resources

View PAYLOAD B, 49113 on NASA - NSSDCA Website

View PAYLOAD B, 49113 on Heavens-Above

View PAYLOAD B, 49113 on Keep Track

View PAYLOAD B, 49113 on Celestrak

View PAYLOAD B, 49113 on Gunter's Space Page

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

PAYLOAD B, 49113

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-06-21T13:02:21.807Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #76 in the year 2021 (2021-08-24 UTC)

PAYLOAD B Visibility forecast

Co-orbital & Co-planar RSOs

Check out PAYLOAD B, 49113 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago