NASASpaceFlight.com Forum
International Space Flight (ESA, Russia, China and others) => Chinese Launchers => Topic started by: input~2 on 10/25/2015 07:59 am
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After "nearly 11 months of preparation work", construction of a ground control station started on Sept 9.
Source in Chinese: http://www.crcc12iec.com/newsnw.asp?id=703 (http://www.crcc12iec.com/newsnw.asp?id=703)
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Document filed to ITU.
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Apparently the main ground station is outside Algiers, the standby station in Medea province and a third station in Blida province
source (http://www.crcc12iec.com/newsnw.asp?id=634)
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A CCTV 13 broadcast showing a DFH-4 satellite during antenna test identified as "ALCOM" dated April 13, 2016
https://www.youtube.com/watch?v=W07_tcRGqdM&feature=youtu.be&t=568 (https://www.youtube.com/watch?v=W07_tcRGqdM&feature=youtu.be&t=568)
(from http://tv.cctv.com/2016/04/24/VIDEDWKhmNzBSP3pgULgnDtr160424.shtml (http://tv.cctv.com/2016/04/24/VIDEDWKhmNzBSP3pgULgnDtr160424.shtml) )
Some unofficial Alcomsat-1 payload details given here (http://www.menadefense.net/2016/09/15/lancement-dalcomsat-1-benefices-lanp/)
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According to the Algerian Space Agency DG Alcomsat-1 will be launched "before end June 2017"
source (http://www.elmoudjahid.com/fr/actualites/99761)
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Confirmation that launch is planned for June 2017
http://www.huffpostmaghreb.com/2016/11/11/alcomsat-1-satellite-alge_n_12910610.html
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Launch now planned "before the end of the year"
http://www.lesoirdalgerie.com/articles/2017/04/06/article.php?sid=211876&cid=2
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Dec. 11
http://bbs.9ifly.cn/forum.php?mod=redirect&goto=findpost&ptid=11059&pid=566645&fromuid=35435
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Apparently the satellite didn't arrive at Xichang until yesterday.
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Apparently the satellite didn't arrive at Xichang until yesterday.
Can the satellite be prepared in time for a December 11 launch date?
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No news from Xichang?
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Trusting on the automatic Google translation from 9ifly Chinese space forum, launch will take place around 1641UTC on December 10 (?)
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Trusting on the automatic Google translation from 9ifly Chinese space forum, launch will take place around 1641UTC on December 10 (?)
These are unfortunately only uneducated guesses.
However, are there no signs from the French/Arabian media in Algeria?
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Trusting on the automatic Google translation from 9ifly Chinese space forum, launch will take place around 1641UTC on December 10 (?)
These are unfortunately only uneducated guesses.
However, are there no signs from the French/Arabian media in Algeria?
No, nothing yet.
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Trusting on pictures posted on soaceflightfans.cn, there is a launcher at LC2 launch complex, so its possible that the launch is on schedule. Still, we are waiting for the NOTAM's for this launch.
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...and the launch time is now confirmed.
A3707/17 NOTAMN
Q) ZPKM/QRTCA/IV/BO/W/000/999/2719N10808E026
A) ZPKM B) 1712101626 C) 1712101734
E) A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED
BY:N272159E1083650-N273125E1074313-N271528E1073946-N270603E1083315
BACK TO START. VERTICAL LIMITS:GND-UNL.
F) GND G) UNL
A3708/17 NOTAMN
Q) ZXXX/QRTCA/IV/BO/W/000/999/2604N11413E016
A) ZSHA ZGZU B) 1712101627 C) 1712101744
E) A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N260808E1142921-N261444E1140013-N255857E1135553-N255223E1142456
BACK TO START. VERTICAL LIMITS: GND-UNL.
F) GND G) UNL
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Trusting on pictures posted on spaceflightfans.cn, there is a launcher at LC2 launch complex, so its possible that the launch is on schedule. Still, we are waiting for the NOTAM's for this launch.
http://www.spaceflightfans.cn/event/long-march-3b-rocket-launch-alcomsat-1-satellite
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For those who prefer the usual format for NOTAMs here there are (resp. for boosters and fairing debris)
A3707/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:N272159E1083650-N273125E1074313-N271528E1073946-N270603E1083315 BACK TO START. VERTICAL LIMITS:GND-UNL. GND - UNL, 10 DEC 16:26 2017 UNTIL 10 DEC 17:34 2017. CREATED: 08 DEC 13:43 2017
A3708/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY: N260808E1142921-N261444E1140013-N255857E1135553-N255223E1142456 BACK TO START. VERTICAL LIMITS: GND-UNL. GND - UNL, 10 DEC 16:27 2017 UNTIL 10 DEC 17:44 2017. CREATED: 08 DEC 13:45 2017
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Does someone know why Google is suspicious about 9ifly forum?
bbs.9ifly.cn/forum.php -
This site may harm your computer (https://www.google.fr/support/answer/45449?topic=360&hl=en&sa=X&ved=0ahUKEwi5iKvl9PrXAhVlCcAKHWfFALIQ2gEIRDAB)
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According to an unidentified source at ASAL (Algerian space agency), launch is imminent..
source (http://maghrebemergent.info/actualite/maghrebine/82811-algerie-le-lancement-du-nouveau-satellite-de-telecommunications-alcom-sat-depuis-la-chine-est-imminent-source-asal.html)
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Different people have different ideas about the meaning of "imminent"!
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Does someone know why Google is suspicious about 9ifly forum?
bbs.9ifly.cn/forum.php -
This site may harm your computer (https://www.google.fr/support/answer/45449?topic=360&hl=en&sa=X&ved=0ahUKEwi5iKvl9PrXAhVlCcAKHWfFALIQ2gEIRDAB)
More on this from https://transparencyreport.google.com/safe-browsing/search?url=bbs.9ifly.cn%2Fforum (https://transparencyreport.google.com/safe-browsing/search?url=bbs.9ifly.cn%2Fforum)
Current status
warning
This site is unsafe
The site bbs.9ifly.cn/forum contains harmful content, including pages that:
Send visitors to harmful websites
This info was last updated on Dec 9, 2017
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Apparently this photo of people waiting for launch is from right now:
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Expected 16:35UTC launch time. Waiting for news from Xichang...
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Liftoff confirmed.
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Apparently, launch has taken place!!
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Rui's article!
https://www.nasaspaceflight.com/2017/12/chinese-long-march-3b-alcomsat-1-algeria/
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Usual reports of rumbling and windows shaking. So launch did occur!
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yes various reports of satellite launch compared to earthquake on Chinese microblogging..from some minutes ago
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Let's see if launch mission codename is 867-32
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yes various reports of satellite launch compared to earthquake on Chinese microblogging..from some minutes ago
You'd think the locals would have worked out these are rocket launches by now?
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from Algérie Presse Service launch time was 16:41 UTC
http://www.aps.dz/sante-science-technologie/66927-lancement-du-satellite-algerien-alcomsat-1-depuis-la-chine
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A few launch images...
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Satellite separation confirmed.
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Short launch video from Algérie Presse service:
https://www.facebook.com/algeriepresseservice/videos/1940022839345245/
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Update from Algérie Presse service
"26 minutes après le décollage vertical, selon les données du centre de poursuite et de contrôle des satellites de Xi’an, les opérations de séparation du satellite Alcomsat-1 du véhicule de lancement et son entrée en Orbite de Transfert Géostationnaire (GTO) se sont déroulées avec succès". L’apogée de cette Orbite de Transfert est de 4.1991km, son périgée est de 200km et son inclinaison est de 26.4º. Cinq manœuvres d’Alcomsat-1 seront nécessaires dans les 06 prochains jours, pour atteindre son orbite géostationnaire 36.000 km et sa position orbitale 24.8 Ouest", a-t-on expliqué auprès de l'ASAL.
26 minutes after launch, satellite separation and injection in GTO were successful. GTO is 200 x 41991 km x 26.4°
5 maneuvers are planned in the next 6 days.
Final orbital position will be 24.8°W
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Close up on the antenna module (source: APS)
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Official announcement of launch success
http://news.xinhuanet.com/world/2017-12/11/c_1122087682.htm
Lift-off time as 16:40 UTC
Some sources quote 16:40:40 UTC
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Launch video on youtube:
https://www.youtube.com/watch?v=o9DsIp_Wc2Y
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Launch pictures (source: http://news.xinhuanet.com/photo/2017-12/11/c_1122087691.htm)
"First international commercial launch of "New Long March""
http://calt.spacechina.com/n689/c10185/content.html
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Sign reads "Congratulations on full success of Alcomsat-1 satellite launch by LM-3B"
(source: https://twitter.com/CGWIC (https://twitter.com/CGWIC))
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Short amateur launch video
https://www.weibo.com/tv/v/Fz4fDsleh?fid=1034:ede6d19d7939a5434cc9f216b3beb915
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Lift-off time as 16:40:04.230 UTC
Serial number of the rocket CZ-3B/G2 (Y40)
Code missia — "867-32"
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Alcomsat-1 launched by Long March-3B
https://www.youtube.com/watch?v=fOk9K7J1z4A
Alcomsat-1, Algeria’s first communications satellite, was launched by a Long March-3B launch vehicle from the Xichang Satellite Launch Center, Sichuan province, on 11 December 2017, at 16:41 UTC (00:41 local time).
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In high-res:
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2 objects have been cataloged by USSTRATCOM:
Alcomsat-1 2017-078A/43039 in 183 x 41799 km x 26.39° at epoch 2017-12-10 19:27 UTC
CZ-3B 3rd stage 2017-078B/43040 in 143 x 40045 km x 26.37° at epoch 2017-12-10 19:37 UTC
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Launch videos
http://tv.cctv.com/2017/12/11/VIDEnsngDl25aj4Nya3JDuBk171211.shtml
http://tv.cctv.com/2017/12/11/VIDEzXZtW2WoQUZq6uH0Yzqx171211.shtml
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LM-3B Launches Alcomsat-1Satellite for Algeria Successfully (http://www.cgwic.com/news/2017/1211.html).
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Details on the satellite's payload are still contradicting.
Is the payload just 2*L, 19*Ku, 12*Ka band transponders, or is it UHF, X, Ku, Ka, EHF band.
And no footprint found at all!
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Details on the satellite's payload are still contradicting.
Is the payload just 2*L, 19*Ku, 12*Ka band transponders, or is it UHF, X, Ku, Ka, EHF band.
And no footprint found at all!
If there is any kind of military aplication of AlComSat-1 communications payload, I wouldn't expect any public information about it.
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Details on the satellite's payload are still contradicting.
Is the payload just 2*L, 19*Ku, 12*Ka band transponders, or is it UHF, X, Ku, Ka, EHF band.
And no footprint found at all!
Ku, Ka as well as military bands on board were first mentionned in the unofficial site menadefense (http://www.menadefense.net/2016/09/15/lancement-dalcomsat-1-benefices-lanp/) in September 2016.
In its publication (https://pbs.twimg.com/media/DQtBuHxX4AAGMDr.jpg) soon after launch, CGWIC mentionned only, as you said, 19Ku, 12Ka and 2L (these 2 presumably for the Xinhua referenced GPS augmentation service).
As for footprints, ASAL (http://www.asal.dz/Lancement-Alcomsat1-ASAL.php) mentions "couverture nationale et régionale (Afrique du nord et Sahel)"
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I don't remember now where I've read it, some of the services provided by the new satellite will be used on the fight of Polisario Front with Morocco. So, I firmly believe that the military bands are onboard AlComSat-1 communications satellite.
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Planned usage of payload according to APS
http://www.aps.dz/sante-science-technologie/66977-alcomsat-1-dispose-de-33-transpondeurs-dont-9-dedies-a-la-diffusion-tele-et-radio-numerique-asal
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Boosters debris were recovered in the NOTAMed area near Dadi village (272100N1081303E) and Maxi village (271720N1080550E), Guizhou province
source (http://www.gzsrf.gov.cn/xwzx/sbdt/201712/t20171214_2941390.html)
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Successful fixed-point
2017年12月18日20时45分,经过8天紧张有序的飞行控制工作,阿尔及利亚一号通信卫星历经5次变轨、3次定点捕获,成功定点于地球静止轨道西经24.8°,为后续投入运营打下坚实基础。中阿双方在西安卫星测控中心共同见证了这一历史时刻。
http://www.spaceflightfans.cn/23487.html (http://www.spaceflightfans.cn/23487.html)
Edit by mod:
English translation:
At 2045 hours [Beijing Time] on 18 December 2017, after eight days of intense and orderly flight control task during which Alcomsat-1 has undergone 5 orbital changes and 3 final orbit acquisition maneuvers, the satellite was successfully located at 24.8 ° west longitude in the geostationary orbit, laying a solid foundation for subsequent operation. Both Chinese and Algerian parties together witnessed this historic moment in Xi'an Satellite Control Center.
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This latest technology satellite will allow gathering the favorite TV channels of Algerians on a single satellite, instead of switching between two satellites (Nilesat and Astra)
source: today's ASAL press conference (http://maghrebemergent.info/actualite/maghrebine/83299-le-satellite-alcomsat-1-a-coute-a-l-algerie-plus-de-250-millions-de-dollars.html)
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Successful fixed-point
At 2045 hours [Beijing Time] on 18 December 2017, after eight days of intense and orderly flight control task during which Alcomsat-1 has undergone 5 orbital changes and 3 final orbit acquisition maneuvers, the satellite was successfully located at 24.8 ° west longitude in the geostationary orbit, laying a solid foundation for subsequent operation. Both Chinese and Algerian parties together witnessed this historic moment in Xi'an Satellite Control Center.
As 24.8°W is not visible from Xi'an another ground control station had to be used maybe one in Algeria (Bouchaoui 364418N0025625E)
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Coverage maps found here:
https://www.menadefense.net/2017/12/10/lancement-premier-satellite-de-telecommunications-algerien-alcomsat-1/couverture-2/
In-orbit testing in progress now since a few days.
What is stated in French wiki page fits better what is actually scanned now:
total 22 Ku transponders (18 * 36 MHz + 4 * 54 MHz)
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Positive television transmission tests on Alcomsat-1
http://www.algeriemondeinfos.com/2018/03/27/television-radio-satellite-tests-concluants-alcomsat-1/
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"Alcomsat-1 Satellite Delivered to Algeria"
http://www.cgwic.com/news/2018/0402.html