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Here are details about a :
Space commemorative cover
or Space Cover.

Cosmodrom : China

Date of Cancellation: Nov. 5, 2017
Printed: 500 units
Kind of Event : Launch
Launch pad : CHINE Jiuquan
habité?/manned?: robot
Mission type : Meteorology

ou?/where?: au sol - ground
autographe?: non - none

Description : BD 3M (Beidou 3M) satellites are the MEO component of the 3rd phase of the chinese Beidou (Compass) satellite navigation system, which, in contrast to GPS and GLONASS, uses both geostationary satellites and satellites in intermediate orbit.

This series provides the satellites for the intermediate constellation called "Compass-M" in 12-hours orbits. Ulitmately, the MEO constellation will comprise 27 satellites.

The 3rd phase intermediate orbit satellites are based on an dedicated bus, not on the DFH-3 Bus as the earlier BD-2M satellites. They feature a phased array antenna for navigation signals and a laser retroreflector. As they have no apogee propulsion system, they require the launch vehicle to perform the final orbit insertion.

The third phase MEO satellites can be launched as single stellites on a CZ-3C/YZ1 with additional dispenser stage, two at a time on a CZ-3B/YZ1 with additional dispenser stage or four at a time on a CZ-5 with additional dispenser stage.

Keyword(s) :

SPACE REVUE : 05 - 2018

Last modified: 05/01/2018 @ 15h38

stock 5 informationpurchase this item CHINE  630  8,-  

     item shown right here with picture.
     items linked to the item shown.
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enveloppe CHI 630 - cover CHI 630
CHI 630

Page : future · Ref: CHINE  630 

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Space Event :

BEIDOU · Navigation · Long March 3B

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