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BD-18, 40748

Orbit data source: Space-Track

BD-18, 40748 is a payload satellite owned by CNSA (CN) in MEO that was launched on Sat, 25 Jul 2015 UTC via a CHANG ZHENG 3B/YZ-1 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/40748?theme=dark&initialShowStats=false

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Identifier

40748, 2015-037A

Orbit

MEO

Last TLE update

22 hours ago

Origin

China National Space Administration (CN / PRC)

Manufacturer

CAST

Mission

Awaiting activation Defense Navigation

Bus & Motor

BD-3M, Unknown motor

Mass

1,014 kg wet, ~850 kg dry

Launch date (UTC)

2015-07-25 (10 years ago)

Launch vehicle

CHANG ZHENG 3B/YZ-1

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 18 m

Radar Cross Section

12.638 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 22 hours ago

0 BD-18
1 40748U 15037A   25192.35727145 -.00000065  00000-0  00000-0 0  9994
2 40748  55.1708 313.7601 0009739 250.2467 109.6602  1.86229311 67770

Epoch: 2025-07-11T08:34Z

TLE epoch observation values (Epoch: 2025-07-11T08:34:28.253Z)

Latitude

-0.00007°

Longitude

-104.38577°

Altitude

21,537.623 km

Speed

3.778 km/s

True Right ascension

20h 54m 58s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-45.68931°

Longitude

120.91564°

Altitude

21,517.655 km

Speed

3.782 km/s

Apparent Right ascension

11h 01m 53s

Apparent Declination

-49° 13' 54"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

18:25:40

Azimuth

234.745° WSW

Elevation

-41.684°

Doppler factor

Orbital elements

Apogee altitude

21,555.398 km

Perigee altitude

21,501.042 km

Semi-major axis

27,906.357 km

Eccentricity

0.00097

Inclination

55.1708°

RAAN

313.7601°

Arg. of periapsis

250.2467°

True anomaly

Unknown

Mean anomaly

109.6602°

Eccentric anomaly

Unknown

Mean motion

0.46557 °/min

Orbital period

773.24 mins

BSTAR

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Other satellites on launch #37 in the year 2015 (2015-07-25 UTC)

BD-19, 40749

CZ-3B R/B, 40750

YZ-1 R/B, 40751

BD-18 Visibility forecast

Observer location: undefined°, undefined°

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.
451 mins	2025-07-12 09:24:34.299Z	209.014° SW	2025-07-12 12:42:34.299Z	322.239° NNW	44.03°	2025-07-12 16:55:34.299Z	115.532° SE

Authenticating...

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Check out BD-18, 40748 on other resources

View BD-18, 40748 on NASA - NSSDCA Website

View BD-18, 40748 on Heavens-Above

View BD-18, 40748 on Keep Track

View BD-18, 40748 on Celestrak

View BD-18, 40748 on Gunter's Space Page

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