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ZK-1A / RB, 100789

Orbit data source: Space-Track

ZK-1A / RB, 100789 is a Chinese payload satellite in SSO that was launched on Mon, 21 Sep 2026 UTC launched 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/100789?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/100789?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

100789, 2026-220K

Orbit

SSO

Country

CN / PRC

Related business

None

Manufacturer

Unknown

Mission

Operational spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

2026-09-21 (11 hours ago)

Launch vehicle

Unknown

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

RCS unknown

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

TLE from 9 hours ago

0 ZK-1A / RB
1 A0789U 26220K   26264.55846415  .00182089  11051-4  59691-3 0  9997
2 A0789  97.5752 338.1246 0224020  10.5095 350.0729 15.60815498   225

Epoch: 2026-09-21T13:24Z

TLE epoch observation values (Epoch: 2026-09-21T13:24:11.302Z)

Latitude

-0.00005°

Longitude

136.64095°

Altitude

239.266 km

Speed

7.848 km/s

True Right ascension

22h 32m 29s

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

15:37:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

533.662 km

Perigee altitude

230.772 km

Semi-major axis

6,760.354 km

Eccentricity

0.0224

Inclination

97.5752°

RAAN

338.1246°

Arg. of periapsis

10.5095°

True anomaly

349.61781°

Mean anomaly

350.0729°

Eccentric anomaly

349.84663°

Mean motion

3.90471 °/min

Orbital period

92.2 mins

BSTAR

0.00059691

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Other satellites on launch #220 in the year 2026 (2026-09-21 UTC)

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ZK-1A / RB 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.
4 mins	2026-09-22 04:55:20.514Z	153.833° SSE	2026-09-22 04:57:20.514Z	62.509° ENE	52.692°	2026-09-22 04:59:20.514Z	357.312° N
5 mins	2026-09-22 17:39:20.514Z	34.196° NE	2026-09-22 17:41:20.514Z	117.813° SE	51.8°	2026-09-22 17:44:20.514Z	177.127° S

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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 ZK-1A / RB, 100789 on other resources

View ZK-1A / RB, 100789 on NASA - NSSDCA Website

View ZK-1A / RB, 100789 on Heavens-Above

View ZK-1A / RB, 100789 on Keep Track

View ZK-1A / RB, 100789 on Celestrak

View ZK-1A / RB, 100789 on Gunter's Space Page

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

ZK-1A / RB, 100789

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: 2026-09-21T13:24:11.302Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #220 in the year 2026 (2026-09-21 UTC)

ZK-1A / RB Visibility forecast

Co-orbital & Co-planar RSOs

Check out ZK-1A / RB, 100789 on other resources

Documentation

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