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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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<iframe src="https://www.satcat.com/sats-embedded/40748?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/40748?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

40748, 2015-037A

Orbit

MEO

Last TLE update

1 day 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 1 day ago

0 BD-18
1 40748U 15037A   25127.92220578 -.00000075  00000-0  00000-0 0  9994
2 40748  55.2251 315.9606 0007876 260.5508  99.3654  1.86229333 66576

Epoch: 2025-05-07T22:07Z

Definitive object data (Epoch: 2025-05-07T22:07:58.579Z)

Latitude

-0.00001°

Longitude

117.9691°

Altitude

21,532.12 km

Speed

3.779 km/s

True Right ascension

21h 03m 51s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

10.32585°

Longitude

-69.34055°

Altitude

21,529.018 km

Speed

3.779 km/s

Apparent Right ascension

07h 53m 32s

Apparent Declination

1° 56' 39"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

14:03:00

Azimuth

273.01° WNW

Elevation

-0.567°

Doppler factor

Orbital elements

Apogee altitude

21,550.195 km

Perigee altitude

21,506.237 km

Semi-major axis

27,906.353 km

Eccentricity

0.0007876

Inclination

55.2251°

RAAN

315.9606°

Arg. of periapsis

260.5508°

True anomaly

99.45444°

Mean anomaly

99.3654°

Eccentric anomaly

99.40992°

Mean motion

0.46557 °/min

BSTAR

Unknown

Orbital period

773.24 mins

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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.
384 mins	2025-05-09 11:36:15.761Z	181.049° SSW	2025-05-09 14:31:15.761Z	106.106° ESE	44.674°	2025-05-09 18:00:15.761Z	72.526° E

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.