Author Topic: Alcomsat-1 - CZ-3B/G2 - XSLC - December 10, 2017 (16:40 UTC)  (Read 16767 times)

Offline input~2

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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
« Last Edit: 12/21/2017 05:30 PM by gongora »

Offline beidou

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Re: Alcomsat-1, CZ-3B, XSLC, 2017
« Reply #1 on: 10/26/2015 07:52 PM »
Document filed to ITU.

Offline input~2

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Re: Alcomsat-1, CZ-3B, XSLC, 2017
« Reply #2 on: 10/27/2015 05:07 PM »
Apparently the main ground station is outside Algiers, the standby station in Medea province and a third station in Blida province
source

Offline input~2

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Re: Alcomsat-1, CZ-3B, XSLC, 2017
« Reply #3 on: 09/25/2016 12:33 PM »
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
(from  http://tv.cctv.com/2016/04/24/VIDEDWKhmNzBSP3pgULgnDtr160424.shtml )

Some unofficial Alcomsat-1 payload details given here
« Last Edit: 09/26/2016 07:10 AM by input~2 »

Offline input~2

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Re: Alcomsat-1, CZ-3B, XSLC, NLT end June 2017
« Reply #4 on: 09/29/2016 07:32 PM »
According to the Algerian Space Agency DG Alcomsat-1 will be launched "before end June 2017"
source

Offline input~2

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Re: Alcomsat-1, CZ-3B, XSLC, end June 2017
« Reply #5 on: 11/11/2016 06:41 PM »

Offline input~2

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Re: Alcomsat-1, CZ-3B, XSLC, NLT end 2017
« Reply #6 on: 04/06/2017 07:34 PM »

Offline SmallKing

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Offline Galactic Penguin SST

Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #8 on: 11/08/2017 02:41 AM »
Apparently the satellite didn't arrive at Xichang until yesterday.
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Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #9 on: 11/28/2017 06:45 PM »
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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Offline Satori

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Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #10 on: 12/07/2017 12:05 PM »
No news from Xichang?

Offline Satori

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Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #11 on: 12/07/2017 06:56 PM »
Trusting on the automatic Google translation from 9ifly Chinese space forum, launch will take place around 1641UTC on December 10 (?)

Offline Galactic Penguin SST

Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #12 on: 12/07/2017 08:19 PM »
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?
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

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Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #13 on: 12/07/2017 10:18 PM »
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.

Offline Satori

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Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #14 on: 12/08/2017 11:33 AM »
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.

Offline Galactic Penguin SST

Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #15 on: 12/08/2017 01:24 PM »
...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
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline linxiaoyi

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Re: Alcomsat-1 - CZ-3B/G2 - XSLC - December 11, 2017
« Reply #16 on: 12/08/2017 04:02 PM »
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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Offline input~2

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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
« Last Edit: 12/08/2017 04:07 PM by input~2 »

Offline input~2

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Does someone know why Google is suspicious about 9ifly forum?

Quote
bbs.9ifly.cn/forum.php -
This site may harm your computer

Offline input~2

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According to an unidentified source at ASAL (Algerian space agency), launch is imminent..
source
« Last Edit: 12/08/2017 07:50 PM by input~2 »

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Different people have different ideas about the meaning of "imminent"!
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Offline input~2

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Does someone know why Google is suspicious about 9ifly forum?

Quote
bbs.9ifly.cn/forum.php -
This site may harm your computer
More on this from https://transparencyreport.google.com/safe-browsing/search?url=bbs.9ifly.cn%2Fforum

Quote from:  transparencyreport.google.com
Current status
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The site bbs.9ifly.cn/forum contains harmful content, including pages that:

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This info was last updated on Dec 9, 2017

Offline Galactic Penguin SST

Apparently this photo of people waiting for launch is from right now:
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Galactic Penguin SST

Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Satori

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Expected 16:35UTC launch time. Waiting for news from Xichang...

Offline Galactic Penguin SST

Liftoff confirmed.
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Apparently, launch has taken place!!


Offline Satori

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Usual reports of rumbling and windows shaking. So launch did occur!

Offline input~2

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yes various reports of satellite launch compared to earthquake on Chinese microblogging..from some minutes ago

Offline input~2

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Let's see if launch mission codename is 867-32

Online Chris Bergin

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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A few launch images...

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Satellite separation confirmed.

Offline input~2

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Short launch video from Algérie Presse service:
https://www.facebook.com/algeriepresseservice/videos/1940022839345245/

Offline input~2

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Update from Algérie Presse service
Quote
"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

Offline input~2

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Close up on the antenna module (source: APS)

Offline input~2

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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

Online Chris Bergin

Launch video on youtube:

Offline input~2

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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

Offline input~2

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Sign reads "Congratulations on full success of Alcomsat-1 satellite launch by LM-3B"
(source: https://twitter.com/CGWIC)
« Last Edit: 12/10/2017 07:31 PM by input~2 »

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Offline GELORD

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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

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).

Offline Galactic Penguin SST

In high-res:
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Offline input~2

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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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Offline Satori

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Offline hvdh

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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!

Offline Satori

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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.

Offline input~2

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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 in September 2016.
In its publication 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 mentions "couverture nationale  et régionale (Afrique du nord et Sahel)"

Offline Satori

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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.
« Last Edit: 12/12/2017 03:14 PM by Satori »

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Boosters debris were recovered in the NOTAMed area near Dadi village (272100N1081303E) and Maxi village (271720N1080550E), Guizhou province
source

Offline linxiaoyi

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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

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.
« Last Edit: 12/18/2017 04:02 PM by input~2 »
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Quote
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

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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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"Alcomsat-1 Satellite Delivered to Algeria"
http://www.cgwic.com/news/2018/0402.html