Author Topic: Yaogan-30-group 03 - CZ-2C - XSLC - December 25, 2017 (19:44 UTC)  (Read 9989 times)

Offline beidou

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« Last Edit: 12/26/2017 01:49 PM by Chris Bergin »

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Re: Yaogan-30-03 - CZ-2C - XSLC - Late 2017 or Early 2018
« Reply #1 on: 12/09/2017 05:11 PM »
Spaceflightfans.cn giving a interesting schedule remark about the next YG-30 group launch.

They are giving the January 21 launch date for YG-30-3 sats.

Offline zubenelgenubi

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Re: Yaogan-30-03 - CZ-2C - XSLC - December 27, 2017 (?)
« Reply #2 on: 12/21/2017 05:40 PM »
Cross-post from the Chinese launch schedule thread:
Spaceflightfans.cn is giving the launch date for YG-30-03 as December 27 and January 9 for GJ-3/4.
Well, it says "tbd" (待定) in both cases

So, possibly wild guesses...
« Last Edit: 12/22/2017 07:27 PM by zubenelgenubi »
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Offline linxiaoyi

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Re: Yaogan-30-03 - CZ-2C - XSLC - Late December 2017 (?)
« Reply #3 on: 12/24/2017 06:31 AM »
2017.12.27 03:12–03:30(UTC+8).
A3862/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N263510E1072251-N264300E1065708-N265820E1070259-N265028E1072844
BACK TO START.VERTICAL LIMITS:GND-UNL. GND - UNL, 26 DEC 19:12 2017 UNTIL 26
DEC 19:30 2017.
CREATED: 24 DEC 05:01 2017
« Last Edit: 12/24/2017 06:49 AM by linxiaoyi »
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Offline input~2

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Just to confirm that this NOTAM is identical (except for the launch window) to those for YG-30-01 and YG-30-02

Offline input~2

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So this launch will occur 20 minutes after Angosat's launch from Baikonur

Online Galactic Penguin SST

BREAKING: The launch has moved forward to TODAY with a similar launch window:

A3872/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N263510E1072251-N264300E1065708-N265820E1070259-N265028E1072844
BACK TO START.VERTICAL LIMITS:GND-UNL. GND - UNL, 25 DEC 19:12 2017 UNTIL 25
DEC 19:32 2017. CREATED: 25 DEC 05:41 2017


The Chinese sometimes does that to avoid days with poor weather predictions.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

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BREAKING: The launch has moved forward to TODAY with a similar launch window:

A3872/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N263510E1072251-N264300E1065708-N265820E1070259-N265028E1072844
BACK TO START.VERTICAL LIMITS:GND-UNL. GND - UNL, 25 DEC 19:12 2017 UNTIL 25
DEC 19:32 2017. CREATED: 25 DEC 05:41 2017


The Chinese sometimes does that to avoid days with poor weather predictions.

How often has it happened recently? As this is the first I am aware of.

Online Galactic Penguin SST

Oh the launch time has shifted again.....to about 30 minutes later.  ::)

A3878/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:
N263510E1072251-N264300E1065708-N265820E1070259-N265028E1072844
BACK TO START.VERTICAL LIMITS:GND-UNL. GND - UNL, 25 DEC 19:42 2017 UNTIL 25 DEC 20:02 2017. CREATED: 25 DEC 13:37 2017


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Offline input~2

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Expected launch mission codename is 07-82

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Waiting for news from Xichang...

Offline GELORD

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Liftoff confirmed!!!
与战士站岗、炊事员做饭一样,航天员是一种职业,工作就是飞行。

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Is it me, or the topic related to this launch on 9ifly Chinese space forum, was deleted?

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Also, the information about the launch of the spaceflightfans.cn disappeared.

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Here http://news.sina.com.cn/o/2017-12-26/doc-ifypwzxq6656263.shtml there is a report of a successful launch...

...still, the information about the launch was deleted from 9ifly Chinese space forum and Spaceflightfans.cn.

Offline GELORD

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与战士站岗、炊事员做饭一样,航天员是一种职业,工作就是飞行。

Online Galactic Penguin SST

State media did just confirm successful launch. Launch time was at 19:44 UTC.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline linxiaoyi

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Here http://news.sina.com.cn/o/2017-12-26/doc-ifypwzxq6656263.shtml there is a report of a successful launch...

...still, the information about the launch was deleted from 9ifly Chinese space forum and Spaceflightfans.cn.

launch information was not deleted, Because sleep is not updated.
http://www.spaceflightfans.cn/23879.html
http://www.spaceflightfans.cn/event/long-march-2c-rocket-launch-yaogan30-03
Welcome to my website:http://www.spaceflightfans.cn/

Online Galactic Penguin SST

Here http://news.sina.com.cn/o/2017-12-26/doc-ifypwzxq6656263.shtml there is a report of a successful launch...

...still, the information about the launch was deleted from 9ifly Chinese space forum and Spaceflightfans.cn.

launch information was not deleted, Because sleep is not updated.
http://www.spaceflightfans.cn/23879.html
http://www.spaceflightfans.cn/event/long-march-2c-rocket-launch-yaogan30-03

...and for 9ifly the site owner wrote a month ago that they got overnight spams so people now need to wait for approval for posts at 17:30-22:30 GMT to be shown. In fact you can still see the concerned thread in the "live coverage box" on the main page.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline GELORD

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Re: Yaogan-30-03 - CZ-2C - XSLC - December 25, 2017 (19:44 UTC)
« Reply #19 on: 12/26/2017 12:06 AM »
与战士站岗、炊事员做饭一样,航天员是一种职业,工作就是飞行。

Online Galactic Penguin SST

Exact launch time is 19:44:05.269 UTC.
Launch code is 07-83.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Online Galactic Penguin SST

Some more photos of this launch:
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Online Galactic Penguin SST

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

Offline input~2

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Re: Yaogan-30-03 - CZ-2C - XSLC - December 25, 2017 (19:44 UTC)
« Reply #23 on: 12/26/2017 04:51 AM »
Exact launch time is 19:44:05.269 UTC.
Launch code is 07-83.
One explanation why launch code is 07-83 and not 07-82 could be that Beidou-3 MEO3/MEO4 was initially supposed to launch before this one (to be confirmed after next Beidou launch)

Offline input~2

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Re: Yaogan-30-03 - CZ-2C - XSLC - December 25, 2017 (19:44 UTC)
« Reply #24 on: 12/26/2017 05:02 AM »
4 objects cataloged by USSTRATCOM:

2017-085A/43081 in 590 x 603 km x 35.00°
2017-085B/43082 in 589 x 605 km x 34.99°
2017-085C/43083 in 589 x 605 km x 34.99°

2017-085D/43084 in 483 x 626 km x 34.67° (CZ-2C 2nd stage)

Offline input~2

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Re: Yaogan-30-03 - CZ-2C - XSLC - December 25, 2017 (19:44 UTC)
« Reply #25 on: 12/26/2017 05:10 AM »
« Last Edit: 12/26/2017 06:26 AM by input~2 »

Offline input~2

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View of the control center 6 minutes after lift-off

4 objects cataloged by USSTRATCOM:

2017-085A/43081 in 590 x 603 km x 35.00°
2017-085B/43082 in 589 x 605 km x 34.99°
2017-085C/43083 in 589 x 605 km x 34.99°

2017-085D/43084 in 483 x 626 km x 34.67° (CZ-2C 2nd stage)

Do they put that on the internet somewhere?
Thanks

Offline input~2

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4 objects cataloged by USSTRATCOM:

2017-085A/43081 in 590 x 603 km x 35.00°
2017-085B/43082 in 589 x 605 km x 34.99°
2017-085C/43083 in 589 x 605 km x 34.99°

2017-085D/43084 in 483 x 626 km x 34.67° (CZ-2C 2nd stage)

Do they put that on the internet somewhere?
Thanks
Orbits are derived from TLE available on the Net

Offline AStick

4 objects cataloged by USSTRATCOM:

2017-085A/43081 in 590 x 603 km x 35.00°
2017-085B/43082 in 589 x 605 km x 34.99°
2017-085C/43083 in 589 x 605 km x 34.99°

2017-085D/43084 in 483 x 626 km x 34.67° (CZ-2C 2nd stage)

Do they put that on the internet somewhere?
Thanks

Yes.  All TLEs are found free on www.space-track.org.  You just need to create an account.  TLEs are not to be disseminated without the prior approval of USSTRATCOM but the info here is free to post.

Offline jcm

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I continue to be confused by this constellation - if it is SIGINT, why is it only at 35 degree inc?
Makes it unlikely that it is a global system aimed at e.g. US and Russia

-  Operating in conjunction with a polar constellation?

-  Targeted specifically at India?

-  Targeted at South China Sea naval activities?

-  Actually a comms constellation to support users in China only?
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Online Alter Sachse

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quote:
-  Operating in conjunction with a polar constellation?

I've read somewhere here that the satellites with Yaogan 30 (15.05.2016) work together.
98.07 ° 97.54min 626 656

Online russianhalo117

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quote:
-  Operating in conjunction with a polar constellation?

I've read somewhere here that the satellites with Yaogan 30 (15.05.2016) work together.
98.07 ° 97.54min 626 656

That is correct as stated in an article by Chinese state media during the first launch.

Offline Liss

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quote:
-  Operating in conjunction with a polar constellation?

I've read somewhere here that the satellites with Yaogan 30 (15.05.2016) work together.
98.07 ° 97.54min 626 656

That is correct as stated in an article by Chinese state media during the first launch.
Is it correct that the three triplets work with YG-24 and GF-9 too? Or only YG-30? Why?
This message reflects my personal opinion based on open sources of information.

Offline SciNews

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Long March-2C launched three Yaogan-30 03 satellites

A Long March-2C rocket launched the third group of three Yaogan-30 remote sensing satellites from Xichang Satellite Launch Center, Sichuan province, on 25 December 2017, at 19:44 UTC (03:44 local time). According to official sources, the satellites entered their preset orbit.

Online russianhalo117

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quote:
-  Operating in conjunction with a polar constellation?

I've read somewhere here that the satellites with Yaogan 30 (15.05.2016) work together.
98.07 ° 97.54min 626 656

That is correct as stated in an article by Chinese state media during the first launch.
Is it correct that the three triplets work with YG-24 and GF-9 too? Or only YG-30? Why?
it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.

Offline Steven Pietrobon

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Capture from SciNews's excellent video (this user must have some great sources). Shows the three satellites as 07, 08 and 09.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline jcm

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Capture from SciNews's excellent video (this user must have some great sources). Shows the three satellites as 07, 08 and 09.

I'm guessing this numbering is the manufacturer's and applies to the CX-5 name  (Chuangxin-5 07 xing, etc)
rather than to the YG-30 name which always seems to be used with the 'zu' (group) numbering, YG 30 hao 03 zu 01 zing etc.
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Offline Liss

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it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.
I doubt it very much because orbital heights are different and hence there is no synchronization in movements of YG-24/GF-9/YG-30 optical birds with the three triplets which are not optical per official statements.
Yet I'm open to a possibility of three additional launches to bring the constellation to six planes x three satellites.
This message reflects my personal opinion based on open sources of information.

Offline jcm

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it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.
I doubt it very much because orbital heights are different and hence there is no synchronization in movements of YG-24/GF-9/YG-30 optical birds with the three triplets which are not optical per official statements.
Yet I'm open to a possibility of three additional launches to bring the constellation to six planes x three satellites.

I'm also skeptical, does someone have a link to the original claim? Seems like it could be a confusion with a statement that the YG-30 Groups would work with each other (as opposed to with the original YG-30)
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Online russianhalo117

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it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.
I doubt it very much because orbital heights are different and hence there is no synchronization in movements of YG-24/GF-9/YG-30 optical birds with the three triplets which are not optical per official statements.
Yet I'm open to a possibility of three additional launches to bring the constellation to six planes x three satellites.

I'm also skeptical, does someone have a link to the original claim? Seems like it could be a confusion with a statement that the YG-30 Groups would work with each other (as opposed to with the original YG-30)
original: https://forum.nasaspaceflight.com/index.php?topic=42724.msg1731226#msg1731226

Offline jcm

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it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.
I doubt it very much because orbital heights are different and hence there is no synchronization in movements of YG-24/GF-9/YG-30 optical birds with the three triplets which are not optical per official statements.
Yet I'm open to a possibility of three additional launches to bring the constellation to six planes x three satellites.

I'm also skeptical, does someone have a link to the original claim? Seems like it could be a confusion with a statement that the YG-30 Groups would work with each other (as opposed to with the original YG-30)
original: https://forum.nasaspaceflight.com/index.php?topic=42724.msg1731226#msg1731226

The "original" is a Hong Kong newspaper's English language restatement citing a Xinhua statement. It's hard to evaluate without seeing the original Xinhua release their claim is based on, preferably in its Chinese version.
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Offline input~2

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it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.
I doubt it very much because orbital heights are different and hence there is no synchronization in movements of YG-24/GF-9/YG-30 optical birds with the three triplets which are not optical per official statements.
Yet I'm open to a possibility of three additional launches to bring the constellation to six planes x three satellites.

I'm also skeptical, does someone have a link to the original claim? Seems like it could be a confusion with a statement that the YG-30 Groups would work with each other (as opposed to with the original YG-30)
original: https://forum.nasaspaceflight.com/index.php?topic=42724.msg1731226#msg1731226

The "original" is a Hong Kong newspaper's English language restatement citing a Xinhua statement. It's hard to evaluate without seeing the original Xinhua release their claim is based on, preferably in its Chinese version.
Was it an extrapolation of the 2nd paragraph of the original Xinhua press release (http://news.xinhuanet.com/politics/2017-09/29/c_1121745112.htm ) which prompted the SCMP author to talk about a "constellation" involving the earlier YG-30?

Offline input~2

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Other ideas on YG-30-Groups mission (in French)
http://www.eastpendulum.com/la-mysterieuse-constellation-yaogan-30

Offline jcm

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it is quite possible that they work together but all we know from the State media and the forums in China is that YG-30 operates with the YG-30 Groups and that we may see additional launches for this Constellation in 2018 to further expand coverage in this multi inclination constellation.
I doubt it very much because orbital heights are different and hence there is no synchronization in movements of YG-24/GF-9/YG-30 optical birds with the three triplets which are not optical per official statements.
Yet I'm open to a possibility of three additional launches to bring the constellation to six planes x three satellites.

I'm also skeptical, does someone have a link to the original claim? Seems like it could be a confusion with a statement that the YG-30 Groups would work with each other (as opposed to with the original YG-30)
original: https://forum.nasaspaceflight.com/index.php?topic=42724.msg1731226#msg1731226

The "original" is a Hong Kong newspaper's English language restatement citing a Xinhua statement. It's hard to evaluate without seeing the original Xinhua release their claim is based on, preferably in its Chinese version.
Was it an extrapolation of the 2nd paragraph of the original Xinhua press release (http://news.xinhuanet.com/politics/2017-09/29/c_1121745112.htm ) which prompted the SCMP author to talk about a "constellation" involving the earlier YG-30?

I bet that's it.  "Remote sensing satellite No. 30 uses multi-satellitet networking mode, mainly for electromagnetic environment detection and related technical tests. Since the satellite came into operation on August 21, Xichang Satellite Launch Center has conducted a comprehensive review on organization and management, command operation, facilities and equipment, test instruments and so on"

I interpret that as referring not to the original YG-30 but the YG-30 Group satellites, and the Aug 21 referring to
start of ground tests at Xichang. So I think the claim that there is an admitted link to the original YG-30 is very weak.
And indeed I still suspect that someone goofed and it should have been YG-31 Group 01 etc.
« Last Edit: 12/27/2017 02:27 AM by jcm »
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Online Phillip Clark

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Following from Jonathan's comment, this is what I posted on September 29 in the thread for the first cluster in this constellation:

"Maybe the Chinese screwed up with the numbering system or mis-translated it into western numbers, and it should be Yaogan Weixing 31A, B and C?"
I've always been crazy but it's kept me from going insane - WJ.

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Following from Jonathan's comment, this is what I posted on September 29 in the thread for the first cluster in this constellation:

"Maybe the Chinese screwed up with the numbering system or mis-translated it into western numbers, and it should be Yaogan Weixing 31A, B and C?"

As I'm sure you know, we are now sure it's not a mistranslation - it's definitely 30 and not 31 in the Chinese: 三十
But it could be a mistake that they were too embarrassed to correct! Or, they are deliberately trolling us.
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Offline input~2

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I bet that's it.  "Remote sensing satellite No. 30 uses multi-satellitet networking mode, mainly for electromagnetic environment detection and related technical tests. Since the satellite came into operation on August 21, Xichang Satellite Launch Center has conducted a comprehensive review on organization and management, command operation, facilities and equipment, test instruments and so on"

I interpret that as referring not to the original YG-30 but the YG-30 Group satellites, and the Aug 21 referring to
start of ground tests at Xichang. So I think the claim that there is an admitted link to the original YG-30 is very weak.
And indeed I still suspect that someone goofed and it should have been YG-31 Group 01 etc.
The sentence 自卫星8月21日进场以来 can be translated as "Since the arrival of the satellite on August 21,..' which fits all the more with your interpretation.

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First stage debris were recovered near Longchang village (264621N1072751E) Guizhou province, at the edge of the NOTAMed area
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