Beidou-12: Compass M3&M4 = CZ-3B/GI - 30.04.12 00:50 ЛМВ -Сичан

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=5060.msg682773#msg682773

February - CZ-3B - XSLC - Compass-M2, Compass-M3

[A]

Интересно, а есть ли какие данные о том был ли запуск? Или когда в итоге планируется?

[Liss]

Интересно, а есть ли какие данные о том был ли запуск? Или когда в итоге планируется?

Дня за два до реальной даты станет известно.

[Salo]

Пойдут в разных пусках:

http://forum.nasaspaceflight.com/index.php?topic=5060.msg863810#msg863810

April / May - CZ-3B - XSLC, LC2 - Compass-M3; Compass-M4
June - CZ-3B - XSLC, LC2 - Compass-M2; Compass-M5 ***

*** 23 Compass-MEO are planned for launch from 2013 to 2020.

Всвязи с чем переименовал тему.

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=5060.msg867151#msg867151

The satellite processing team for the first double-Compass-M launch is now in Xichang. If we assume the same processing time as the last Compass launch (though the number of satellites means that either the processing time will be longer or that more technicians are needed, complicating matters...), then I think the launch will be in late April / early May.

[instml]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg871039#msg871039

The two satellites were transported to XSLC on March 5th and 7th, respectively.

[instml]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg871070#msg871070

[Salo]

http://space.skyrocket.de/doc_sdat/bd-2m2.htm

BD-2 M[/size]


BD-2 M2 [CAST]

BD 2 (Beidou 2) is a chinese 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.

The operational intermediate orbit satellites are based on an dedicated bus, not on the DFH-3 Bus as the protype BD-2M 1. As they have no apogee propulsion system, they require the launch vehicle to perform the final orbit insertion. They feature a phased array antenna for navigation signals and a laser retroreflector.

Nation:   China
Type / Application:   Navigation
Operator:   
Contractors:   CAST
Equipment:   ?
Configuration:   
Propulsion:   
Power:   2 deployable solar arrays, batteries
Lifetime:   5 years
Mass:   800 kg
Orbit:   21519 km

[instml]

The mass of MEO satellite is more than 2000kg, possibly based on the DFH-3 bus.

http://forum.nasaspaceflight.com/index.php?topic=28199.msg874358#msg874358

 :?:

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg879011#msg879011

The launch vechile should be transported to XSLC already.

Indeed, the rocket has arrived at XSLC today! (It left the Beijing plant on March 29). Again, assuming that the launch flow follows the one put on the CZ-3 user manual, then the launch date would be around April 23 or so.

(source)

[instml]

http://forum.nasaspaceflight.com/index.php?topic=5060.msg884290#msg884290

Looks like there's a chance that the next Compass duo launch can happen next week (around April 20-21 or so).

Source

[instml]

Looks like launch is on April 28.

(source)

http://forum.nasaspaceflight.com/index.php?topic=28199.msg887444#msg887444

[instml]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg888794#msg888794

[Sharicoff]

Какой длинный ГО!

[Liss]

Вроде как официально объявили на 30 апреля в 04:40-04:50 по пекинскому, т.е. 29 апреля в 20:40-20:50 UTC.
Действительно два КА, M3 и M4, на CZ-3B.

[Liss]

Зоны объявили:

A0398/12 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY N2417E10608 N2447E10540 N2436E10527 N2406E10555 BACK TO START. VERTICAL LIMITS: SFC-UNL. ALL ACFT ARE PROHIBITED TO FLY INTO THE AREA. SFC - UNL, 29 APR 20:32 2012 UNTIL 29 APR 21:09 2012. CREATED: 28 APR 07:37 2012

A0395/12 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY N2311E10709 N2330E10651 N2320E10637 N2300E10655 BACK TO START. VERTICAL LIMITS: SFC-UNL. ALL ACFT ARE PROHIBITED TO FLY INTO THE AREA. SFC - UNL, 29 APR 20:32 2012 UNTIL 29 APR 21:09 2012. CREATED: 28 APR 06:49 2012

A0396/12 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY N1807E11149 N1846E11117 N1819E11041 N1740E11113 BACK TO START. VERTICAL LIMITS: SFC-UNL. ALL ACFT ARE PROHIBITED TO FLY INTO THE AREA. SFC - UNL, 29 APR 20:34 2012 UNTIL 29 APR 21:24 2012. CREATED: 28 APR 06:59 2012

[instml]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg891589#msg891589

The rocket on the launch pad.

Judging from the air-space closure times, the launch time may be closer to 20:40 UTC.

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg891666#msg891666

According to CAST, the 2 S/C are stacked on top of each other under the CZ-3B fairing via an adaptor. So 3 objects plus the 3rd stage are to reach orbit.
The S/C use an improved DFH-3 platform and are capable of orbit change.
Nominal S/C orbit has been indicated as 21528km circular, inclined 55°.

[Salo]

http://forum.nasaspaceflight.com/index.php?topic=28199.msg891691#msg891691

Seems to have been launched!

[Liss]

Да, пара фотографий на http://www.9ifly.cn/thread-6783-13-1.html уже есть.