Beidou-3 M9, Beidou-3 M10 – CZ-3B – Сичан (XSLC) – 29.03.2018, 17:56 UTC

[che wi]

The first task for Yuanwang-3, which was active earlier in the year, will be to support the launch of two Beidou phase 3 satellites, which will join a constellation of satellites which form China's own Global Navigation Satellite System, Beidou, similar to America's GPS, Russia's GLONASS and Europe's Galileo systems.

The satellite duo will launch in late March on a Long March 3B rocket from the Xichang Satellite Launch Centre in Sichuan Province in the country's southwest, for direct insertion into medium Earth orbits with a Yuanzheng-1 upper stage.

https://gbtimes.com/space-tracking-ship-leaves-port-to-support-chinese-beidou-and-telecommunications-satellite-launches

[che wi]

http://bbs.9ifly.cn/forum.php?mod=viewthread&tid=89678&page=3#pid589840

[che wi]

Нотам на 29 марта 17:41-18:20 UTC.

A0903/18 (ZJSA) - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY: N180540E1115053-N184350E1111900-N181640E1104331-N173836E1111528 BACK TO START.
VERTICAL LIMITS:SFC-UNL. ALL ACFT SHALL BE FORBIDDEN TO FLY INTO THE RESTRICTED AREA. SFC - UNL, 29 MAR 17:41 2018 UNTIL 29 MAR 18:20 2018. CREATED: 27 MAR 03:19 2018

[Liss]

Плоскость A. Предполагаемые рабочие позиции -- A2 и A3. 
К сожалению, китайская Канцелярия системы "Бэйдоу" данных о рабочих точках не публикует: http://www.csno-tarc.cn/system/basicinfo&ce=english

[tnt22]

NOTAM на 2-ю ст РН

RPHI

B1357/18 - DUE TO SPACEFLIGHT ACT OF ATM BUREAU OF CAAC WI
12 10 19N 116 31 00E
12 53 32N 115 57 34E
12 27 11N 115 22 24E
11 44 02N 115 55 52E
 
ATS RTE SEGMENT M765 (BTN PANDI AND NOBEN) CLSD.
ALTN RTE: PANDI W17 LULBU N884 (NORTHEAST BOUND)
       REKEL DCT LULBU W17 PANDI (SOUTHWEST BOUND). 29 MAR 16:40 2018 UNTIL
29 MAR 19:20 2018. CREATED: 27 MAR 08:50 2018

[tnt22]

NOTAMs A0903/18 (ZJSA) и B1357/18 (RPHI) по координатам полностью идентичны A0455/18 (ZJSA) и B0654/18 (RPHI) - запуск Beidou-3 2018-02-12.

[поц]

Launch Schedule

March 29     Long March 3B • Beidou
Launch time: Approx. 1750 GMT (1:50 p.m. EDT)
Launch site: Xichang, China
A Chinese Long March 3B rocket with a Yuanzheng upper stage will launch two satellites for the country's Beidou navigation network into Medium Earth Orbit.

[tnt22]

Cosmic Penguin‏ @Cosmic_Penguin 1 мин. назад

Finally can confirm that the Chinese launch did took place - more than 20 minutes passed before someone posted a photo of the launch happening. Perhaps the rocket was too quiet this time to shake people off their beds....

[Liss]

Тоже стартовала. И тоже несколько часов до отделения.

[tnt22]

Chris B - NSF‏ @NASASpaceflight 2 мин. назад

This is an actual photo. Let's hope none of this lands on any homes downrange this time.

[zandr]

https://www.nasaspaceflight.com/2018/03/long-march-3b-beidou-3-meo-satellites/

Long March 3B launches pair of Beidou-3 MEO satellites
written by Rui C. Barbosa   March 29, 2018
A Long March-3B/YZ-1 has orbited a new pair of navigation satellites in what was China's ninth launch of the year. The launch of Beidou-3MEO5 (or Beidou-30) and Beidou-3MEO6 (or Beidou-31) took place at 17:50 UTC from the LC2 Launch Complex of the Xichang Satellite Launch Center, Sichuan province. It will take over four hours to complete the mission.

[tnt22]

Andrew Jones‏ @AJ_FI 17 мин. назад

Successful launch of 2 x Beidou-3 navigation satellites to medium Earth orbit confirmed. Liftoff at 17:56 UTC Thursday (01:56 Friday local) from Xichang via Long March 3b/YZ-1. These are the 7th & 8th Beidou-3 (global) sats & 30th & 31st Beidou sats overall.

Спойлер

[свернуть]

[tnt22]

Andrew Jones‏ @AJ_FI 19 мин. назад


( 0:14)

[tnt22]

http://www.xinhuanet.com/english/2018-03/30/c_137075599.htm

China sends twin BeiDou-3 navigation satellites into space
Source: Xinhua | 2018-03-30 06:26:14 | Editor: Liangyu



China sends twin satellites into space with a single carrier rocket, adding two more members for its domestic BeiDou Navigation Satellite System (BDS), in Xichang of southwest China's Sichuan Province, on March 30, 2018. (Xinhua/Liang Keyan)

XICHANG, Sichuan, March 30 (Xinhua) -- China on Friday sent twin satellites into space with a single carrier rocket, adding two more members for its domestic BeiDou Navigation Satellite System (BDS).

The Long March-3B carrier rocket lifted off from Xichang Satellite Launch Center in southwest China's Sichuan Province at 1:56 a.m. The launch was the 269th mission for the Long March rocket family.

The twin satellites are coded as the 30th and 31st satellites in the BDS.

They entered orbit more than three hours after the launch and will work together with six previously launched BeiDou-3 satellites once they pass a series of tests.

The satellites and the rocket for Friday's launch were developed by the Innovation Academy for Microsatellites at the Chinese Academy of Sciences and China Academy of Launch Vehicle Technology, respectively.

Named after the Chinese term for the Big Dipper, the BeiDou system started providing independent services over China in 2000 and will serve countries along the Belt and Road by the end of 2018.

By around 2020, when the BDS goes global, it will have more than 30 satellites.

[tnt22]

http://russian.news.cn/2018-03/30/c_137075647.htm

Китай успешно запустил два навигационных спутника "Бэйдоу-3"
2018-03-30 07:04:41丨Russian.News.Cn

Сичан /пров. Сычуань/, 30 марта /Синьхуа/ -- В пятницу Китай с помощью ракеты-носителя "Чанчжэн-3Б" /серия "Великий поход"/ вывел на орбиту два навигационных спутника "Бэйдоу-3".

Это седьмой и восьмой спутники "Бэйдоу-3", запущенные Китаем для спутниковой навигационной системы.

Запуск был произведен 30 марта в 01:56 по пекинскому времени с космодрома Сичан в юго-западной китайской провинции Сычуань.

После более чем трехчасового полета спутники успешно вышли на рабочие орбиты.

С учетом нынешнего запуска китайские ракеты-носители семейства "Чанчжэн" совершили 269 полетов. -0-

[tnt22]

НОРАД пока опубликовал набор TLE на ID 43247 / 18029C - TBA. Номера 43245 / 18029A и 43246 / 18029B зарезервированы

Код Выделить Развернуть

0 TBA - TO BE ASSIGNED
1 43247U 18029C   18088.86493936 -.00000561  56594-6  00000+0 0  9990
2 43247  54.9789  43.2549 5805796 170.3438 174.9187  4.42674411    07 193 x 18 386 km x 54.979 deg - возможно, ПМСМ, посл. ст. РН?

[tnt22]

Tкп = 01:56:04.130 (BJT) --> 17:56:04.130 UTC

[tnt22]

Видео пуска (канал CCTV13, 1:02)

http://tv.cctv.com/2018/03/30/VIDE9TNzL13pcuKrU03Gzkf7180330.shtml

[tnt22]

НОРАД опубдиковал наборы элементов на 4 объекта запуска - все TBA

Код Выделить Развернуть

0 TBA - TO BE ASSIGNED
1 43245U 18029A   18088.98929750 -.00000085  00000-0  00000+0 0  9995
2 43245  54.9962  43.2548 0116377 177.5109 239.3801  1.82918837    09

0 TBA - TO BE ASSIGNED
1 43246U 18029B   18089.08831911 -.00000086  00000-0  00000+0 0  9990
2 43246  54.9985  43.2548 0115129 177.9384 304.1311  1.82897754    09

0 TBA - TO BE ASSIGNED
1 43247U 18029C   18089.11240791  .00034774  62602-6  95969-3 0  9999
2 43247  54.9959  43.1193 5803052 170.4236 209.1990  4.42596679    13

0 TBA - TO BE ASSIGNED
1 43248U 18029D   18088.98065832 -.00000072  00000-0  00000+0 0  9996
2 43248  55.2486  43.3288 0092537 350.8706  58.4685  1.77418310    04
43245 / 18029A - 21 535 x 22 193 km x 54.996°
43246 / 18029B - 21 541 x 22 191 km x 54.998°
43247 / 18029C - 198 x 18 385 km x 54.996°
43248 / 18029D - 22 178 x 22 711 km x 55.249°

[tnt22]

China launches twin navigation satellites into space

CGTN

Опубликовано: 29 мар. 2018 г.

China has sent twin satellites into space with a single carrier rocket, adding two more members to its domestic BeiDou Navigation Satellite System (BDS). The launch, which took place at the Xichang Satellite Launch Center in southwestern Sichuan Province on Friday, was the 269th mission for the Long March carrier rocket family. The twin satellites are coded as the 30th and 31st satellites in the BDS. They will work together with six others already in orbit once they pass a series of tests. The BeiDou system started providing independent services over China in 2000 and will serve countries along the Belt and Road route by the end of 2018.

 (1:03)

[tnt22]

https://gbtimes.com/china-sends-latest-pair-of-beidou-satellites-into-medium-earth-orbit-with-ninth-launch-of-2018

China sends latest pair of Beidou satellites into medium Earth orbit with ninth launch of 2018
by Andrew Jones | Mar 30, 2018 07:20 | CHINA ● SICHUAN PROVINCE ● CASC


Launch of a Long March 3B/YZ-1 launch vehicle at 17:56 UTC on March 30, 2018, carrying a pair of Beidou-3 satellites to medium Earth orbit. CNS

China launched its latest duo of Beidou satellites from Xichang on Friday, as the country continues constructing its own positioning and navigation system to rival GPS and others.

Launch via Long March 3B rocket took place at 01:56 Beijing time Friday (17:56 UTC Thursday) from the Xichang Satellite Launch Centre in the southwest of the country.

The satellites were ins erted into the desired medium Earth orbits by a Yuanzheng-1 upper stage more than three hours after launch, with CASC, China's main aerospace contractor, then confirming success.

Спойлер

The satellites were developed by the Innovation Academy for Microsatellites at the Chinese Academy of Sciences (CAS), while the China Academy of Launch Vehicle Technology (CALT) under CASC provided the Long March 3B launch vehicle.


China launches twin Beidou navigation satellites into space

Beidou GNSS

The satellites launched were the seventh and eighth - and the 30th and 31st Beidou satellites overall - of the third phase of deployment of the Beidou system.

The satellites, which join six others orbiting at around 21,000 km above the Earth, will help expand Beidou navigation, positioning and timing services from regional to global coverage by 2020.

The Beidou navigation system is China's answer to the US Global Positioning System (GPS), Russia's GLONASS and Europe's Galileo GNSS constellations.

As well as civilian applications such as navigation for shipping and road traffic, and mapping and surveying, Beidou will provide the People's Liberation Army military assistance from space in targeting, positioning and locating, and synchronising operations.

The Beidou phase 3 satellites are based on a new bus featuring a phased array antenna for navigation signals and a laser retroreflector, with a launch mass of 1,014 kg.


A Beidou-3 positioning and navigation satellite, to be launched into medium Earth orbit. CNS

Rapid start to 2018

The mission was China's ninth launch in 2018, and third Beidou satellite mission. CASC says it plans 10 Beidou satellite launches this year, with eight of these set to be dual launches to MEO.

Overall, China could launch around 40 times in 2018 - nearly double the national record of 22 set in 2016 - with the next launch se t for Saturday from the Taiyuan launch centre.

The launch on Friday was the 269th launch overall for the Long March families of rockets.


Preparations for launch of the Beidou-3 M5 and M6 satellites via Long March 3B from Xichang Satellite Launch Centre in Sichuan Province in March 2018. CASC

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[tnt22]

http://spaceflight101.com/long-march-3b-meo-5-6-launch/

Long March 3B Thunders off from China with Beidou Navigation Satellite Pair
 March 29, 2018

Photo: Xinhua (File Image)

China launched a Long March 3B rocket on Thursday, carrying the next pair of Beidou-3 navigation satellites to join the country's growing Global Navigation Satellite System set to reach operational strength later this year. Out of nine orbital space launches carried out so far this year by the Chinese, three were in support of Beidou-3 – showcasing the drive behind getting the system into service with up to 18 Beidou craft headed up the hill in 2018.

Thursday's launch from the Xichang Satellite Launch Center in the Sichuan Province occurred at 17:56 UTC, 1:56 a.m. local time and marked the start of a four-hour ascent mission comprising a climb into a preliminary orbit by the three-stage CZ-3B rocket followed by two burns of the YZ-1 upper stage to dispatch the Beidou-3 MEO-9 and MEO-10 satellites directly into their operational orbit 21,500 Kilometers above the planet. Liftoff was confirmed through local observers present for the launch and an official acknowledgement is expected to come once the satellites have arrived in their target orbit later on Thursday.

Спойлер

Beidou MEO Satellites – Image: CCTV

China remains at pace with the United States so far this year with Thursday's launch marking the country's ninth orbital space launch in 2018, taking them one ahead of the U.S. – but only for 20 hours as a Falcon 9 gears up for liftoff from California on Friday carrying the fifth set of Iridium-NEXT satellites. 2018 is expected to become China's busiest space flight year to date and one particular item of focus is the country's Beidou navigation constellation that has been available as a regional navigation system since 2009 and is now being expanded to full global coverage.

Thursday's Beidou-3 mission followed up on dual-satellite launches on January 11 and February 12 and brought the total number of Beidou-3 satellites to thirteen, joining fifteen Beidou-2 satellites that remain in operation. Still on the manifest for this year are four or five dual launches of Medium Earth Orbit satellites atop Long March 3B rockets, the launch of the first Beidou-3G satellite toward Geostationary Orbit and the launch of the third Beidou-3 satellite headed into an inclined Geosynchronous Orbit.


Operational Beidou Constellation – Image: beidou.gov.cn

The overall goal for this year will be bringing the Beidou constellation to an initial operational capability for global navigation services before full operational capability is reached in 2020 when all constellation slots will be filled. According to China's Satellite Navigation Office, the finished Beidou constellation will consist of five Beidou-G satellites parked in Geostationary Orbit, three Beidou-I satellites in 55-degree Geosynchronous Orbits and 27 satellites in Medium Earth Orbit, flying in three orbital planes with eight active members and one spare in each plane.

The combination of GEO, IGSO and MEO satellites is unique among the world's navigation satellite systems: the U.S. GPS, Europe's Galileo and Russia's Glonass system operate solely from Medium Earth Orbit with Geostationary Augmentation Satellites supplying correction data for high-precision applications; India's Navic only operates from GEO; and Japan takes GPS as a basis and augments its availability and accuracy via three satellites in a specialized Quasi-Zenith Orbit.


Beidou-3 Satellite Types – Image: beidou.gov.cn


Beidou Operational Coverage, March 28, 2018 (Beidou-3 MEO not yet operational) – Image: beidou.gov.cn

China's home-grown navigation system started out in the first half of the 1980s when the first proposals for a navigation satellite constellation were made but the program would not see a satellite launched until 2000. Reaching the launch pad after a lengthy development effort, the project was broken down in three major phases, starting out as a regional system covering the Chinese mainland before expanding coverage to the Asia-Pacific Region and eventually pushing for global round-the-clock coverage.

The first step was realized with a two-satellite system in Geostationary Orbit that required a ground station to process two-dimensional position data obtained from the two satellites into a three-dimensional product then relayed to the ground-based user terminal. Beidou-2, covering the broader Asia-Pacific region, was inaugurated in 2009 and consisted of five active satellites in GEO plus a limited number of MEO Satellites.

To achieve full global coverage, China planned to expand the MEO constellation to a similar setup as GPS/Galileo while retaining the GEO/GSO segment to provide compatibility with the first generation of ground terminals and to augment the navigation and timing solutions offered by the advanced Beidou-3 system.

The Beidou-3 satellites operating from Geostationary Orbit are built by CAST, the IGSO segment employs two types of satellites supplied by CASC and CAS and the MEO satellites also use two different manufacturers: CAST (MEO-1 through 6) and CAS (MEO-7 through 12). Launches of the first set of MEO satellites from each manufacturer in 2015 and 2016 were classed as in-orbit validation satellites; the same was the case for the IGSO craft and presumably will apply to the Beidou-3G series as well.

>> Beidou-3 Satellite & Constellation Overview


First Beidou 3-M Satellite during Integration – Photo: SASTIND

The GEO/IGSO satellites each have two payloads – one for navigation and augmentation as part of Beidou-3 and one to provide compatibility with the previous generation of Beidou satellites. These two are known as the Radio Determination Satellite Service (RDSS) and the Radio Navigation Satellite Service (RNSS), respectively.

MEO satellites flying under Beidou-3 only host the RNSS payload that operates in a similar way as the GPS, Galileo, Glonass and Navic systems – sending coded signals in the L-Band frequency with ultra high timing precision so that receivers on the ground can process three or four different signals in order to calculate the user's precise position, elevation and speed. Only carrying a single payload allows the MEO satellites to be more compact in size, weighing 1,014 or 1,060 Kilograms per piece (CAST vs. CAS) and permitting dual launches atop Long March 3B/YZ-1 rockets.


Photo: Xinhua (File Image)

The 56.3-meter tall Long March 3B climbed vertically for a few seconds before aligning itself with a south-easterly trajectory, taking it over the Yunnan, Guizhou and Guangxi provinces, the Gulf of Tonkin, Hainan Island and out over the Pacific Ocean. With its four liquid-fueled boosters and large core stage firing at full throttle, the Long March 3B had a total launch thrust of 604 metric-ton-force as it departed Xichang, en-route to an initial Parking Orbit.

The four boosters, 16.09 meters long and 2.25 meters in diameter, were to fire for two minutes and 20 seconds – each delivering 740 Kilonewtons of additional thrust and burning through 41,100 Kilograms of hypergolic propellants. After separation of the boosters, the vehicle was to continue ascent powered by the stage alone, fitted with a four-chamber DaFY-6-2 engine cluster providing 2,961 Kilonewtons of thrust. The stage stands 24.76 meters tall and holds 186,200 Kilograms of propellants at liftoff enabling it to burn for 158 seconds.

Separation of the stages was planned to occur in hot mode, starting with the ignition of the second stage's vernier engine and followed by the firing of cutting charges to allow the spent core to be discarded and the second stage to fire up its main engine. The 12.9-meter long second stage, holding 49,000kg of propellants, was expected to burn for nearly three minutes with a total thrust of 742 Kilonewtons.

>> Long March 3B Launch Vehicle Overview


Image: CCTV

Assuming control of the flight, the third stage was to ignite its YF-75 dual engine cluster that, unlike the other CZ-3B stages, burns Liquid Oxygen and Liquid Hydrogen. Generating 157 Kilonewtons of thrust, the third stage was to burn through 18,200 Kilograms of cryogenics over the course of one or two burns to raise put the stack into an elliptical transfer orbit for separation of the YZ-1 Upper Stage.

The Yuanzheng-1 (Expedition-1) upper stage has been developed as a multi-purpose vehicle capable of executing mission profiles with several engine burns over extended mission durations. Using storable propellants, the main engine of the YZ-1 stage delivers 6.5 Kilonewtons of thrust and supports at least two in-space engine starts – first to finish the parking orbit insertion and setting the proper apogee altitude and again for the circularization after an extended coast phase. Injection of the Beidou-3 satellites is planned directly into their operational orbit nearly four hours after launch.

[свернуть]

[tnt22]

Официоз

CGWIC‏ @CGWIC 2 ч. назад

LM-3B successfully launches two BeiDou-3 navigation satellites today from Xichang Satellite Launch Center, adding two more members for the BeiDou Navigation Satellite System (BDS).The launch was the 269th mission for the Long March launch vehicle family.

[tnt22]

НОРАД идентифицировал объекты запуска

[ВВК]

Видео 

[tnt22]

Andrew Jones‏ @AJ_FI 12 мин. назад

Commemorative postcards for China's recent launches of Beidou-3 M9 & M10 satellites from Xichang via Long March 3B/YZ-1 (Long March #269), and Long March 4C of 3 x Gaofen-1 EO sats from Taiyuan (LM #270)

Спойлер

[свернуть]