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NAXING 1, 28221

Orbit data source: Space-Track

NAXING 1, 28221 is a payload satellite owned by CASC (CN) in SSO that was launched on Sun, 18 Apr 2004 UTC via a CHANG ZHENG 2C launch vehicle from the Xichang Space Center, China (XSC). 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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https://www.satcat.com/sats-embedded/28221?theme=dark&initialShowStats=false

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Identifier

28221, 2004-012B

Orbit

SSO

Country

CN / PRC

Related business

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

Manufacturer

Tsinghua

Mission

Civil Technology

Bus & Motor

NX, Unknown motor

Mass

25 kg wet, 25 kg dry

Launch date (UTC)

2004-04-18 (22 years ago)

Launch vehicle

CHANG ZHENG 2C

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box, 0.1 m

Radar Cross Section

0.060 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 NAXING 1
1 28221U 04012B   26251.54109234  .00001094  00000-0  79305-4 0  9998
2 28221  98.0003 282.4636 0011080 163.1940 196.9655 15.06167981219795

Epoch: 2026-09-08T12:59Z

TLE epoch observation values (Epoch: 2026-09-08T12:59:10.378Z)

Latitude

-0.00002°

Longitude

100.06433°

Altitude

558.319 km

Speed

7.578 km/s

True Right ascension

18h 49m 51s

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

15:13:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

552.604 km

Perigee altitude

537.263 km

Semi-major axis

6,923.07 km

Eccentricity

0.00111

Inclination

98.0003°

RAAN

282.4636°

Arg. of periapsis

163.194°

True anomaly

196.9285°

Mean anomaly

196.9655°

Eccentric anomaly

196.947°

Mean motion

3.76786 °/min

Orbital period

95.54 mins

BSTAR

0.000079305

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Other satellites on launch #12 in the year 2004 (2004-04-18 UTC)

CZ-2C DEB, 28224 (Decayed)

TANSUO 1, 28220

CZ-2C R/B, 28222

CZ-2C DEB, 28232 (Decayed)

CZ-2C DEB, 28225 (Decayed)

CZ-2C DEB, 35417 (Decayed)

CZ-2C DEB, 28233 (Decayed)

CZ-2C DEB, 28223 (Decayed)

CZ-2C DEB, 28226 (Decayed)

CZ-2C DEB, 28227 (Decayed)

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NAXING 1 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.
7 mins	2026-09-09 01:51:48.061Z	150.04° SSE	2026-09-09 01:55:48.061Z	50.899° ENE	51.147°	2026-09-09 01:58:48.061Z	358.793° N
6 mins	2026-09-09 15:04:48.061Z	12.99° NNE	2026-09-09 15:06:48.061Z	14.678° NNE	83.939°	2026-09-09 15:10:48.061Z	193.778° SSW

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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 NAXING 1, 28221 on other resources

View NAXING 1, 28221 on NASA - NSSDCA Website

View NAXING 1, 28221 on Heavens-Above

View NAXING 1, 28221 on Keep Track

View NAXING 1, 28221 on Celestrak

View NAXING 1, 28221 on Gunter's Space Page

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

NAXING 1, 28221

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-09-08T12:59:10.378Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #12 in the year 2004 (2004-04-18 UTC)

NAXING 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out NAXING 1, 28221 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago