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SHIJIAN 6 05A (SJ-6 05A), 49961

Orbit data source: Space-Track

SHIJIAN 6 05A (SJ-6 05A), 49961 is a payload satellite owned by CASC (CN) in SSO that was launched on Fri, 10 Dec 2021 UTC via a CHANG ZHENG 4B 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 URL

https://www.satcat.com/sats-embedded/49961?theme=dark&initialShowStats=false

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Identifier

49961, 2021-122A

Orbit

SSO

Last TLE update

2 days ago

Origin

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

Manufacturer

SAST

Mission

Operational Defense Sigint

Bus & Motor

FY-1?, Unknown motor

Mass

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

Launch date (UTC)

2021-12-10 (4 years ago)

Launch vehicle

CHANG ZHENG 4B

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 4.3 m

Radar Cross Section

5.659 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 2 days ago

0 SHIJIAN 6 05A (SJ-6 05A)
1 49961U 21122A   25236.75581217  .00002387  00000-0  20799-3 0  9991
2 49961  97.3699 215.7049 0002196  82.4361 277.7111 14.97767332204353

Epoch: 2025-08-24T18:08Z

TLE epoch observation values (Epoch: 2025-08-24T18:08:22.171Z)

Latitude

-0.00008°

Longitude

-29.65913°

Altitude

576.653 km

Speed

7.572 km/s

True Right ascension

14h 22m 49s

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

22:28:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

572.316 km

Perigee altitude

569.264 km

Semi-major axis

6,948.927 km

Eccentricity

0.00022

Inclination

97.3699°

RAAN

215.7049°

Arg. of periapsis

82.4361°

True anomaly

277.68616°

Mean anomaly

277.7111°

Eccentric anomaly

277.69863°

Mean motion

3.74685 °/min

Orbital period

96.08 mins

BSTAR

0.00020799

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Other satellites on launch #122 in the year 2021 (2021-12-10 UTC)

SHIJIAN 6 05B (SJ-6 05B), 49962

CZ-4B DEB, 49963 (Decayed)

CZ-4B R/B, 49964 (Decayed)

CZ-4B DEB, 49965 (Decayed)

SHIJIAN 6 05A (SJ-6 05A) 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	2025-08-26 10:48:23.909Z	44.308° NE	2025-08-26 10:51:23.909Z	103.767° ESE	23.798°	2025-08-26 10:54:23.909Z	152.878° SSE
4 mins	2025-08-26 12:24:23.909Z	326.071° NNW	2025-08-26 12:26:23.909Z	285.881° WNW	20.764°	2025-08-26 12:28:23.909Z	249.49° W
5 mins	2025-08-26 23:11:23.909Z	205.277° SW	2025-08-26 23:13:23.909Z	256.013° W	32.38°	2025-08-26 23:16:23.909Z	325.957° NNW