CZ-3 R/B, 20559

Orbit data source: Space-Track

CZ-3 R/B, 20559 is space debris originally from a launch on Sat, 07 Apr 1990 UTC launched from the Xichang Space Center, China (XSC). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/20559?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/20559?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

20559, 1990-030B

Orbit

Active

Last TLE update

17 hours ago

Origin

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

Manufacturer

BWYIC

Mission

Spacecraft

Bus & Motor

CZ-3 STAGE 3, Unknown motor

Mass

~2,000 kg wet, ~2,000 kg dry

Launch date (UTC)

1990-04-07 (35 years ago)

Launch vehicle

Unknown

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 3.7 m

Radar Cross Section

15.189 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 17 hours ago

0 CZ-3 R/B
1 20559U 90030B   25224.08346561  .00113299  61468-7  14343-2 0  9995
2 20559  30.7781 233.9764 4315671  74.2248 328.2633  6.97662876226528

Epoch: 2025-08-12T02:00Z

TLE epoch observation values (Epoch: 2025-08-12T02:00:11.428Z)

Latitude

-0.00002°

Longitude

-116.85245°

Altitude

2,043.409 km

Speed

7.76 km/s

True Right ascension

15h 35m 54s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

6.93873°

Longitude

-106.28114°

Altitude

1,465.427 km

Speed

8.197 km/s

Apparent Right ascension

18h 15m 53s

Apparent Declination

-17° 38' 01"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

09:41:15

Azimuth

78.63° E

Elevation

-40.615°

Doppler factor

Orbital elements

Apogee altitude

10,188.523 km

Perigee altitude

199.993 km

Semi-major axis

11,572.395 km

Eccentricity

0.43157

Inclination

30.7781°

RAAN

233.9764°

Arg. of periapsis

74.2248°

True anomaly

285.83248°

Mean anomaly

328.2633°

Eccentric anomaly

309.06431°

Mean motion

1.74345 °/min

Orbital period

206.49 mins

BSTAR

0.0014343

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

Other satellites on launch #30 in the year 1990 (1990-04-07 UTC)

ASIASAT 1, 20558

CZ-3 R/B 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.
7 mins	2025-08-13 09:23:46.363Z	207.231° SW	2025-08-13 09:25:46.363Z	175.03° S	17.966°	2025-08-13 09:30:46.363Z	138.107° SSE
15 mins	2025-08-13 13:03:46.363Z	210.463° SW	2025-08-13 13:08:46.363Z	192.841° SSW	13.184°	2025-08-13 13:18:46.363Z	172.185° S

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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 ascending order

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

Check out CZ-3 R/B, 20559 on other resources

View CZ-3 R/B, 20559 on Heavens-Above

View CZ-3 R/B, 20559 on Keep Track

View CZ-3 R/B, 20559 on Celestrak

View CZ-3 R/B, 20559 on Gunter's Space Page

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