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BD-20, 40938

Orbit data source: Space-Track

BD-20, 40938 is a payload satellite that was launched on Tue, 29 Sep 2015 UTC via a CHANG ZHENG 3B 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.

Not visible in the next 10 days

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/40938?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/40938?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

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ISO8601 Format

Identifier

40938, 2015-053A

Orbit

Active

Last TLE update

20 hours ago

Origin

China National Space Administration (CN)

Manufacturer

CAST

Mission

Awaiting activation Defense Navigation

Bus & Motor

BD-3I, AKM?

Mass

~1,150 kg wet, ~1,150 kg dry

Launch date (UTC)

2015-09-29 (10 years ago)

Launch vehicle

CHANG ZHENG 3B

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 18 m

Radar Cross Section

13.998 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 20 hours ago

0 BD-20
1 40938U 15053A   25135.32628916 -.00000141  00000-0  00000-0 0  9998
2 40938  49.8402 263.5051 0058407 187.6186 355.8394  1.00275196 35361

Epoch: 2025-05-15T07:49Z

TLE epoch observation values (Epoch: 2025-05-15T07:49:51.383Z)

Latitude

-2.66958°

Longitude

94.95009°

Altitude

35,540.521 km

Speed

3.093 km/s

True Right ascension

05h 42m 50s

True Declination

-2° 40' 01"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

42.64237°

Longitude

41.85899°

Altitude

35,703.856 km

Speed

3.081 km/s

Apparent Right ascension

01h 53m 28s

Apparent Declination

34° 44' 25"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

12:01:44

Azimuth

336.91° NNW

Elevation

-11.021°

Doppler factor

Orbital elements

Apogee altitude

36,032.061 km

Perigee altitude

35,539.527 km

Semi-major axis

42,163.931 km

Eccentricity

0.00584

Inclination

49.8402°

RAAN

263.5051°

Arg. of periapsis

187.6186°

True anomaly

Unknown

Mean anomaly

355.8394°

Eccentric anomaly

Unknown

Mean motion

0.25069 °/min

Orbital period

1,436.05 mins

BSTAR

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Other satellites on launch #53 in the year 2015 (2015-09-29 UTC)

CZ-3B R/B, 40939 (Decayed)

BD-20 Visibility

Observer location: undefined°, undefined°

BD-20 is not visible in the next 10 days

Authenticating...

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Check out BD-20, 40938 on other resources

View BD-20, 40938 on NASA - NSSDCA Website

View BD-20, 40938 on Heavens-Above

View BD-20, 40938 on Keep Track

View BD-20, 40938 on Celestrak

View BD-20, 40938 on Gunter's Space Page

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