LKW-2 – CZ-2D – Цзюцюань (JSLC) – 23.12.2017 04:14 UTC

[che wi]

Нотамы на 23 декабря (совпадающие с зонами для запуска LKW-1)

A3662/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED
BOUNDED BY:N330743E0981215-N331228E0974709-N340515E0980115-N340028E0982635 BACK TO START.
VERTICAL LIMITS:GND-UNL. GND - UNL, 23 DEC 04:04 2017 UNTIL 23 DEC 04:32 2017. CREATED: 01 DEC 06:34 2017

A3664/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED
BOUNDED BY:N350925E0984346-N351301E0982430-N354201E0983231-N353712E0985821 BACK TO START.
VERTICAL LIMITS:GND-UNL. GND - UNL, 23 DEC 04:03 2017 UNTIL 23 DEC 04:26 2017. CREATED: 01 DEC 06:37 2017

[che wi]

Вчерашний видеорепортаж китайского телевидения о подготовке Цзюцюаня к 98-му пуску, который должен состояться через несколько дней (再过几天).

http://video.sina.com.cn/p/news/o/doc/2017-12-16/200467626933.html

[tnt22]

Космические полёты Китая - ChinaSpaceFlight
вчера в 20:21

23.12.2017 ~12:18 BJT (~ 04:18 UTC) — Jiuquan Satellite Launch Center (JSLC), LC43/603 — CZ-2D/Chang Zheng-2D — Weixing-32一号02星/遥感32号卫星

По сообщениям китайских инсайдеров в КНР завтра объявлена временная запретная зона для движения всех видов транспорта в районе космодрома Цзюцюань - Jiuquan Satellite Launch Center (JSLC) и близлежащих районах (северо-западная провинция Ганьсу).
 
Стартовое окно пуска ракеты-носителя CZ-2D/Chang Zheng-2D: 23 декабря 2017 года с 04:03 до 04:32 UTC (12:03-12:32 по пекинскому времени). Полезная нагрузка РН CZ-2D/Chang Zheng-2D — спутник ДЗЗ Weixing-32一号02星/遥感32号卫星 для использования в целях безопасности и обороноспособности КНР.

[tnt22]

[tnt22]

Cosmic Penguin‏ @Cosmic_Penguin 16 мин. назад
 
Launch success has been confirmed by state media. Rocket is Long March 2D, satellite is LKW-2 and T-0 was 04:14 UTC.

[tnt22]

Cosmic Penguin‏ @Cosmic_Penguin 3 мин. назад

Photos of the Chinese launch (video in link):

http://mp.weixin.qq.com/s/QTcYFwlGLlnPCUS8esb_AQ ...

Спойлер

[свернуть]

[tnt22]

Космические полёты Китая - ChinaSpaceFlight
26 минут назад

КИТАЙ УСПЕШНО ОСУЩЕСТВИЛ ЗАПУСК СПУТНИКА ДЛЯ ЗОНДИРОВАНИЯ ЗЕМЛИ

Китай успешно запустил в 04:14 UTC спутник ДЗЗ LKW-2 一号02星/遥感32号卫星 для использования в целях дистанционного зондирования природных ресурсов Земли, безопасности и обороноспособности КНР, сообщают китайские СМИ. Эта миссия - 259-й полёт ракеты-носителя серии CZ/Chang Zheng (Long March).

（航天）我国成功发射陆地勘查卫星二号

新华社甘肃酒泉１２月２３日电（李国利、李潇帆）１２月２３日１２时１４分，我国在酒泉卫星发射中心用长征二号丁运载火箭，成功将陆地勘查卫星二号发射升空，卫星进入预定轨道，发射任务获得圆满成功。
据介绍，这颗星主要用于开展陆地资源遥感勘查。
这次任务是长征系列运载火箭的第２５９次飞行。（完）
2017-12-23 12:36:41

http://news.21cn.com/caiji/roll1/a/2017/1223/12/32819..

[tnt22]

Видео пуска на VK.COM

https://vk.com/video-119361981_456239594 (2:03)

[tnt22]

Jonathan McDowell‏Подлинная учетная запись @planet4589 42 мин. назад

Second stage of the LKW-2 was probably deorbited, with entry over the Antarctic about 10 minutes ago.

[che wi]

Китайская ракета-носитель успешно вывела на орбиту спутник дистанционного зондирования наземных ресурсов

Цзюцюань /пров. Ганьсу/, 23 декабря /Синьхуа/ -- В субботу в 12:14 с космодрома Цзюцюань провинции Ганьсу /Северо-Западный Китай/ была запущена ракета-носитель, которая успешно вывела на намеченную орбиту спутник дистанционного зондирования наземных ресурсов под номером 2.

Спутник, который был выведен на орбиту ракетой-носителем "Чанчжэн-2D" /"Великий поход-2D"/, предназначен для обследования наземных ресурсов.

С учетом нынешнего запуска китайские ракеты-носители семейства "Чанчжэн" совершили уже 259 полетов.

[tnt22]

Официоз от Синьхуа

http://www.xinhuanet.com/english/2017-12/23/c_136847140.htm

China launches land exploration satellite
Source: Xinhua | 2017-12-23 12:48:51 | Editor: Lifang

JIUQUAN, Dec. 23 (Xinhua) -- China launched a land exploration satellite into a preset orbit from the Jiuquan Satellite Launch Center in the Gobi desert at 12:14 p.m. Saturday Beijing Time.

The satellite is mainly used for remote sensing exploration of land resources.

A Long March-2D rocket carried the satellite into space.

The launch was the 259th mission of the Long March rocket series.

[che wi]

12:14:26.237 по местному времени.

 

https://v.qq.com/x/page/t05235t35u4.html

[che wi]

LKW-2 (2017-084A / 43080): 491.4 х 501.5 км, 97.46°

Для сравнения, текущие параметры LKW-1 (2017-077A / 43034): 488.0 х 503.8 км, 97.46°

[che wi]

Jonathan McDowell‏ @planet4589 · 18m

China's LKW-2 satellite tracked in a 489 x 502 km x 97.5 deg sunsync orbit with 1030 local time descending node. Same orbit and plane as LKW-1, but 180 degrees away from it in orbital phase.

[tnt22]

http://spaceflight101.com/second-lkw-land-survey-satellite-launched-by-chinese-long-march-2d-rocket/

Second LKW "Land Survey Satellite" Launched by Chinese Long March 2D Rocket
December 23, 2017


Photo: Xinhua/Weibo

China sent the second satellite of the LKW constellation into orbit on Saturday via a Long March 2D rocket, coming less than three weeks after the first LKW satellite reached orbit in what observers suspected was the first launch in a new series of reconnaissance spacecraft flying under the cover of land surveying missions.

Long March 2D carrying LKW-2 lifted off from the Jiuquan Satellite Launch Center at 4:14 UTC on Saturday and successfully dispatched the satellite into orbit, Chinese State Media confirmed half an hour after the day's launch.

Спойлер

The launch of LKW-2 marked the third orbital space launch performed on Saturday in the span of less than three hours. Earlier in the night, Japan's H-IIA rocket carrying a pair of satellites for climate research & technology development lifted off just 72 seconds before SpaceX's final Falcon 9 rocket of the year blasted off from the other side of the Pacific Ocean with the fourth set of Iridium-NEXT communications satellites.


H-IIA & Falcon 9 Launches on Dec. 23, 2017 – Photos: MHI/SpaceX

Interesting enough, Saturday night's salvo of three launches marked the third time this year that three orbital space launches were carried out on a single calendar day (UTC), the most recent being an October 9 threefer with an H-IIA, Falcon 9 and CZ-2D in action that day – the very same grouping of launchers flying on Saturday.

While H-IIA and Falcon 9 launched in full public view, China carried out the LKW-2 mission in the usual secrecy with prior signs of an imminent launch only coming through navigational warnings issued to pilots. Since the closed airspace areas lined up perfectly with the LKW-1 airspace closures, the suspicion was that another member would be added to the constellation.

LKW-1 lifted off from Jiuquan at 4:11 UTC on December 3rd and settled in an orbit of 488 by 504 Kilometers, 97.46 degrees, officially conducting an Earth observation mission for the purpose of "remote sensing exploration of land resources."


Photo: Xinhua/Weibo

However, as often seen in China's primarily military-oriented space program, reconnaissance satellites are often operated under the cover of civilian Earth observation and environmental monitoring missions and LKW appears to fit right into this scheme – especially with the rapid deployment of the system based on the interval between the first two launches.

Saturday's launch, occurring at 4:14 UTC, 12:14 p.m. local, came right at the time the Earth's rotation carried LKW-1's orbital plane over the Jiuquan Satellite Launch Center (in plane time around 4:15:30). LKW-2 is therefore expected to enter the same plane as the first member of the system and the two will likely orbit at 180-degree separation to create a system optimized for coverage/revisit time – important factors for remote sensing missions, but also desired properties of a reconnaissance constellation.


Image: CCTV

The Ludikancha Weixing satellite series, now with two members, appears to be linked to the Yaogan reconnaissance satellite fleet through similar orbital parameters as electro-optical imaging satellites flown under Yaogan – possibly building an extension or sub-constellation of Yaogan. The two programs are also tied through satellite builder CAST that has been responsible for the low-orbiting optical reconnaissance satellites under Yaogan and has also been announced as the manufacturer of LKW.

CGI imagery and actual video from satellite deployment showed LKW-1 possesses a hexagonal satellite body with three deployable solar panels – a design shared by a number of low-orbiting imaging satellites operated by a number of nations as well as private entities. (e.g. the recently-launched Mohammed VI-A)


Image: CCTV

Based on its appearance, the satellite is suitable for a telescope of similar size as the latest medium-sized imaging satellites designed by Airbus & Thales, hosting 65-centimeter telescopes and achieving ground resolutions of up to 0.7 meters for black-and-white imagery and better than three meters for multi-band color and near-infrared imagery. This would be in line with reports that LKW is more advanced than the commercial Jilin video and imaging satellites, capable of a ground resolution of 1.13 meters for panchromatic imagery.

The orbit of the LKW satellites fits right in with the low-orbiting Yaogans, showing very similar parameters, both in altitude and ascension, to Yaogan-21 and 26, both launched in 2014 and likely approaching the end of a typical three-to-four-year mission life for low-orbiting imaging satellites. Yaogan 21 and 26 launched on Long March 4B rockets while LKW flew on the less-powerful CZ-2D, strongly hinting the satellite is using a more compact platform with a launch mass around one metric ton.


Photo: Xinhua (File)

Saturday's launch marked the 17th Chinese launch of the year and brought the total number of launches performed around the globe in 2017 to 88. It was the 259th flight of the Long March launcher family and the 35th for the Long March 2D variant that debuted back in 1992.

A member of the Long March family, the 2D vehicle was designed as a two-stage version of the Long March 4 launch vehicle, optimized for Low Earth and Sun Synchronous Orbit missions. Up until last December's partial failure, Long March 2D had kept a perfect success record.

CZ-2D is a two-stage rocket standing 41.1 meters tall, 3.35 meters in diameter and weighing around 232 metric tons at liftoff, capable of placing 3,500 Kilograms into Low Earth Orbit and 1,300kg into Sun Synchronous Orbit. Both Stages of the Long March 2D use Nitrogen Tetroxide and Unsymmetrical Dimethylhydrazine as propellants.

For the first 157 seconds of Flight, the vehicle is powered by its first stage, equipped with a YF-21C engine module that provides a thrust of 2,962 Kilonewtons and comprises four clustered YF-20C engines. The stage is 27.9 meters long, 3.35 meters in diameter and filled with 183 metric tons of Unsymmetrical Dimethylhydrazine and Nitrogen Tetroxide Propellants for a total weight of the first stage at launch of 192,700kg.

After first stage burnout and jettison, the second stage starts controlling the flight. The upper Stage is 10.9 meters in length and has the standard CZ-2D diameter, holding around 52 metric tons of UDMH and NTO propellants at launch. The second stage is powered by a YF-24C main engine providing 742 Kilonewtons of thrust and a 47.1-Kilonewton four-chamber vernier engine for attitude control and circular orbit insertion capability. Long March 2D can be outfitted with two different payload fairings to accommodate payloads of different sizes with fairing diameters of 2.9 and 3.35 meters.

[свернуть]

[tnt22]

http://tass.ru/kosmos/4837670

Китай вывел на орбиту спутник дистанционного зондирования Земли

Космос | 23 декабря, 8:39 UTC+3

Запуск был осуществлен с космодрома Цзюцюань на северо-западе страны


ПЕКИН, 23 декабря. /ТАСС/. Китайский спутник дистанционного зондирования Земли в субботу успешно выведен на орбиту при помощи ракеты-носителя "Чанчжэн-2D". Об этом сообщило агентство Синьхуа.

Запуск был осуществлен в 12:14 по местному времени (07:14 мск) с космодрома Цзюцюань (северо-западная китайская провинция Ганьсу).

КНР активно развивает национальную космическую программу. Помимо метеорологических спутников, в стране разрабатываются технологии для исследования астероидов и Марса, к интенсивному изучению поверхности которого китайские ученые намерены приступить в 2020-2025 годах.

[tnt22]

В довесок с сообщению che wi #12

Космические полёты Китая - ChinaSpaceFlight
три часа назад

23.12.2017 - 12:14 BJT (04:14 UTC) — Jiuquan Satellite Launch Center (JSLC), LC43/603 — CZ-2D(Y48 ) /Chang Zheng-2D(Y48 ) — LKW-2/号02星
 
Точное время пуска ракеты-носителя CZ-2D(Y48 ) /Chang Zheng-2D(Y48 ) из космодрома Цзюцюань:
 
23 декабря 2017 в 12:14:26.237 BJT (04:14:26.237 UTC)
Обозначение миссии - код 01-85, серийный номер РН (Y48 ).

[tnt22]

https://spaceflightnow.com/2017/12/23/land-imaging-craft-launched-for-chinese-military/

Land imaging craft launched for Chinese military
December 23, 2017 Stephen Clark


A Long March 2D rocket lifted off at 0414 GMT Saturday (11:14 p.m. EST Friday) from the Jiuquan space base in northwestern China. Credit: Xinhua

A land imaging satellite soared to a 300-mile-high perch above Earth Saturday after lifting off on top of a Long March 2D rocket from the Jiuquan space base in the Gobi Desert, joining a similar military reconnaissance craft launched earlier this month in the same type of orbit.

The spacecraft, dubbed LKW-2, will be "mainly used for remote sensing exploration of land resources," China's state-run Xinhua news agency reported.

Спойлер

The Long March 2D booster lifted off at 0414 GMT Saturday (11:14 p.m. EST Friday) from the Jiuquan launch base in northwestern China, and headed south to deploy its payload into a nearly-circular orbit around 310 miles (500 kilometers) in altitude. The orbit's inclination, or tilt to the equator, is 97.5 degrees, according to tracking data published by the U.S. military.

The circumstances of Saturday's mission, which blasted off at 12:14 p.m. Beijing time, are nearly identical to a launch from Jiuquan on Dec. 3, when a Long March 2D rocket took off at almost the same time of day and placed a payload in the same type of orbit.

In both cases, Chinese state media said the satellites would be used for land imaging, and the spacecraft are presumably part of a new Chinese imaging and reconnaissance network.

Saturday's launch placed the LKW-2 satellite into an orbit positioned 180 degrees away from the location of the LKW-1 craft launched Dec. 3, allowing them to revisit and re-image the same place on Earth twice as often as possible with one satellite.

Western analysts believe the satellites are likely high-resolution imaging platforms for the Chinese military.

Sunday's launch marked the 17th Chinese space launch attempt of the year. Sixteen of the missions successfully reached orbit.

[свернуть]