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Многообразие китайских спутников РЭР
 
Я насчитал 4 эксплуатирующихся в настоящее время типа китайских КА радиоэлектронной разведки:

1. Тип "Яогань-9" ("Цзяньбинь-8" ;)  . Запуски 2010-2018 гг. 6 групп по 3 КА. Три орбитальных плоскости, по две тройки в каждой плоскости. Наклонение 63°

2. Тип "Яогань-30" ("Чуансинь-5" ;) . Запуски 2017-2018 гг. 4 запуска по 3 КА. Три орбитальные плоскости через 120° по ДВУ. Наклонение 35°

3. Тип "Шицзянь-11". Запуски 2009-2014 гг. 8 запусков, из них 1 аварийный. Наклонение 98.2° Количество плоскостей 5...7 (зависит от того, как считать), по LTDN от ~8 часов до ~15:30.

4. Тип "Шицзянь-16". Запуски 2013-2016 гг. 2 запуска. Наклонение 75°. Количество плоскостей 2, через 90° по ДВУ.
Изменено: Безумный Шляпник - 08.07.2018 21:02:00
Какой-то бредовый NSTP-Sat..., (ничего не понимаю)
 
[url]http://spacenews.com/nasa-seeks-payload-ideas-for-mystery-satellite/[/url]

[QUOTE]WASHINGTON — NASA is soliciting concepts for payloads that could fly on a mysterious satellite it is in discussions to inherit from another government agency.

NASA issued a request for information (RFI) Feb. 15 [url=https://nspires.nasaprs.com/external/solicitations/summary.do?method=init&solId={16C0FA2D-C5B0-B41C-3BC5-CFAF14C6D483}&path=init]for a proposed spacecraft called the NASA Science/Technology Platform Satellite, or NSTP-Sat. The RFI was the first time NASA had publicly discussed such a mission[/url].

The RFI, issued by NASA’s science mission directorate, solicits ideas for payloads, including remote sensing instruments and technology demonstrations, which could fly on the spacecraft. The RFI offered few details about the proposed mission, noting NSTP-Sat could fly “to low earth orbit, geostationary equatorial orbit, medium Earth orbit, Earth-Moon L1, or lunar orbit in the 2021 timeframe.”

The RFI, which remains open until March 17, seeks ideas for how this spacecraft could be used to meet NASA’s science and technology development goals. The RFI states that NASA will use the responses to determine “whether there are science opportunities for new uses of this spacecraft” and “whether a solicitation for proposals is warranted to enable such opportunities.”

The RFI offered few details about the spacecraft itself. “The NSTP-Sat is a spacecraft platform that has become available to NASA as excess Government property through an interagency agreement,” it stated. It added the spacecraft was a “Boeing GEO spinner bus” that could launch on an EELV-class rocket or as a secondary payload on a Space Launch System mission.

NASA and other organizations involved with NSTP-Sat have been reticent to provide additional details about how NASA gained access to the satellite bus. Alan Zide, a program executive in NASA’s heliophysics division and the point of contact listed in the RFI, did not respond to email messages with questions about the satellite.

NASA spokesman Dwayne Brown said March 1 that NASA is in discussions with the U.S. Air Force to obtain the bus. “NASA and the U.S. Air Force (USAF) are in discussions concerning the transfer of a satellite bus that the USAF has determined does not meet current or projected Air Force mission requirements,” he said.

U.S. Air Force spokeswoman Capt. AnnMarie Annicelli said March 2 she was not familiar with the satellite and was looking into it, but has not provided any additional information. When asked who the original customer was for this Boeing-built satellite, Addrian Brooks, a spokesman for Boeing Network and Space Systems, said March 2 that the company was “unable to disclose this information.”

Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics who specializes in space history, notes the dimensions for the satellite provided in the RFI are consistent with two versions of satellites built by Hughes Space and Communications. One, the HS-389, was used for the Intelsat 6 series of satellites, while the HS-393 was sold to other commercial customers. Those satellites were built and launched in the late 1980s and early 1990s. Boeing acquired Hughes Space and Communications in 2000.

The National Reconnaissance Office (NRO), he noted, is thought to have used the same bus for a series of data relay satellites operating under the code name QUASAR, also known as the Satellite Data System (SDS). Four such satellites launched from 1989 through 1996.

Spin-stabilized satellites have fallen out of favor, having been replaced by three-axis stabilized satellites. The last Boeing-built commercial spin-stabilized satellite, a Boeing 376 spacecraft called e-BIRD, launched in 2003.

McDowell said a later generation of QUASAR satellites, launched from 1998 to as recently as 2014, were also assumed to be three-axis stabilized. However, he noted there’s little known about this series of satellites, leaving open the possibility it also used the same bus as the earlier spacecraft.

“It’s possible that some other NRO program also used this bus, but QUASAR/SDS is definitely the most likely,” he said in a March 3 email.

If the satellite in question is indeed from the NRO, it would not be the first time NASA inherited spare hardware from that intelligence agency. In 2012, NASA announced it was taking possession of two 2.4-meter mirror assemblies from the NRO. The mirrors were reportedly built for NRO’s Future Imagery Architecture program, and became surplus when the NRO cancelled the optical portion of that program in the mid-2000s.

NASA, after taking possession of the mirrors, solicited ideas from the scientific community on how to use what it called Astrophysics Focused Telescope Assets. NASA decided to use one of the mirrors for the Wide Field Infrared Survey Telescope (WFIRST), which originally planned to build a much smaller mirror. WFIRST is planned for launch in the mid-2020s.

Phillip Swarts contributed to this story.
[/QUOTE]

[IMG]http://spacenews.com/wp-content/uploads/2017/03/nstpsat-figure.jpg[/IMG]
Harris и их крупногабаритные антенны
 
https://www.harris.com/solution/unfurlable-mesh-reflector-antennas

[QUOTE]Today, [B]more than 80 of our unfurlable, large-aperture mesh reflectors have rolled out of our factory and entered orbit[/B]—10 times the number of our closest competitor and representing 800 years of collective service. They are providing unmatched performance for satellite communications and broadcast systems that require high reliability for mission critical performance and higher antenna gain for increased satellite capacity.[/QUOTE]
[QUOTE]To meet the growing need for large satellite antenna systems that can be stowed into small launch envelopes, Harris offers unfurlable reflector solutions in [B]sizes ranging from 2 to 25 meters[/B].[/QUOTE][url]https://www.harris.com/sites/default/files/downloads/solutions/55387_d0593_5m_unfurlable_ka-band_space_antenna_final_web.pdf[/url]
[url]https://www.harris.com/sites/default/files/downloads/solutions/55430_d0807_unfurlable_space_antenna_solutions_final_web.pdf[/url]

Спецификация:

RF Performance Up to 90 GHz
Surface Accuracy and
Reflectance Performance
Up to and beyond Ka band
PIM-free Performance Proven from UHF to Ka bands at high incident power levels
Aperture Sizes 2 to 25 meters
Ka Band Aperture Sizes 2 to 9 meters
f/D Requirement Any focal ratio requirement
Mounting Options Center-mounted or edge-mounted rib reflectors for
prime focus or offset antenna geometries, respectively
[COLOR=#FF0000][B]Shadowing Up to 85% optical transparency[/B][/COLOR]
Умер Саймон Рамо
 
Один из основателей компании TRW (буква "R" в названии - это как раз он и есть, Simon Ramo).

Казалось бы, где тот TRW - и где мы в своем 2016-м году. А однако ж вот, на 104-м году жизни.

[IMG]http://img.timeinc.net/time/magazine/archive/covers/1957/1101570429_400.jpg[/IMG]
Сайт ЦООПИ оживет?, Или поигрались и хватит?
 
Который день не могу зайти на сайт ЦООПИ. Вообще, ни www.khrunichev.ru/, ни www.space-center.ru не функционируют. Это только у меня так?
Beidou G7 - CZ-3C - Сичан - 12.06.2016 15:30 UTC
 
12 июня 2016 около 23:30 (непонятно по какому времени)

[QUOTE]第23颗北斗导航卫星(G7) 2016年6月12日23:30左右,将在西昌卫星发射中心由长征三号丙CZ-3C火箭发射升空

西昌卫星发射中心将于2016年6月12日23时30分执行“北斗二号”备份卫星工程GEO-7卫星任务[/QUOTE]http://www.chinaspaceflight.com/satellite/Beidou/Beidou-G7-launch.html
Gaofen-4 -- CZ-3B -- Сичан -- 28.12.2015, 16:04 UTC, (успешно)
 
高分四号

По слухам, 31-го декабря.

https://twitter.com/cnspaceflight/status/678050718654160896
ZX-1C Zhongxing-1C – CZ-3B – Сичан – 09.12.2015 16:46 UTC, (успешно)
 
[B]A3550/15[/B] - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY: N2722E10837-N2731E10743-N2715E10740-N2706E10833 BACK TO START. VERTICAL LIMITS:GND-UNL. GND - UNL, 09 DEC 16:39 2015 UNTIL 09 DEC 17:14 2015. CREATED: 03 DEC 07:13 2015

[B]A3551/15[/B] - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY: N2608E11429-N2615E11400-N2559E11356-N2552E11425 BACK TO START. VERTICAL LIMITS:GND-UNL. GND - UNL, 09 DEC 16:40 2015 UNTIL 09 DEC 17:29 2015. CREATED: 03 DEC 07:15 2015
Yaogan-29 – CZ-4C, Тайюань, LC9 – 26.11.2015 21:24 UTC, (успешно)
 
UPD: CZ-4C, не CZ-4B!

http://news.xinhuanet.com/photo/2015-11/27/c_128473809.htm

[IMG WIDTH=558 HEIGHT=367]http://news.xinhuanet.com/photo/2015-11/27/128473809_14485794466271n.jpg[/IMG]

[IMG WIDTH=556 HEIGHT=403]http://news.xinhuanet.com/photo/2015-11/27/128473809_14485835451261n.jpg[/IMG]
Изменено: Безумный Шляпник - 27.11.2015 05:17:47
Разрушение NOAA-16?, опять аккумулятор взорвался?
 
[QUOTE]On 25 November 2015 at 0816z the JSpOC identified a possible breakup of NOAA 16 (#26536). All associated objects have been added to conjunction assessment screenings, and satellite operators will be notified of close approaches between the debris and active satellites. The JSpOC will catalog the debris objects as soon as sufficient data is available. [/QUOTE]
Рассекречены архивные документы по программе AFTRACK, дополнительные ПН для радиотехнической разведки на "Адженах"
 
http://www.nro.gov/foia/declass/AFTRACK.html
Beidou-3 I2-S (№20) -- CZ-3C? -- Сичан -- 29.09.2015 около 23:15 UTC
 
Кажется, с ChinaSpaceFlight нам осторожно намекают на запуск с Сичана в ближайшее время КА Beidou-3 I2S:

[IMG]https://pbs.twimg.com/media/CNZBVdBUkAELEG7.jpg[/IMG]

https://twitter.com/cnspaceflight/status/636768236315406336/photo/1

http://www.chinaspaceflight.com/satellite/Beidou/Beidou-I2S.html

UPD: на фото LC2, а сабж улетел с LC3 - так что фотка мимо кассы.
Изменено: Безумный Шляпник - 30.09.2015 15:14:20
Beidou M1S, Beidou M2S -- CZ-3B/YZ-1 -- Сичан -- 25.07.2015
 
[QUOTE]网络消息:北斗双星(M1-S , M2-S)将在7月24日发射。仅供参考。[/QUOTE]
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