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.
Quote from: input~2 on 12/18/2017 08:16 pmQuote from: Satori on 12/18/2017 06:00 pmSpaceflightfans.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 casesSo, possibly wild guesses...
Quote from: Satori on 12/18/2017 06:00 pmSpaceflightfans.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
Spaceflightfans.cn is giving the launch date for YG-30-03 as December 27 and January 9 for GJ-3/4.
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-N265028E1072844BACK TO START.VERTICAL LIMITS:GND-UNL. GND - UNL, 25 DEC 19:12 2017 UNTIL 25DEC 19:32 2017. CREATED: 25 DEC 05:41 2017The Chinese sometimes does that to avoid days with poor weather predictions.
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.
Quote from: Satori on 12/25/2017 08:51 pmHere 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.htmlhttp://www.spaceflightfans.cn/event/long-march-2c-rocket-launch-yaogan30-03
Exact launch time is 19:44:05.269 UTC.Launch code is 07-83.
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)
Quote from: input~2 on 12/26/2017 05:02 am4 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
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
Quote from: Alter Sachse on 12/26/2017 03:43 pmquote:- 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 656That is correct as stated in an article by Chinese state media during the first launch.
Quote from: russianhalo117 on 12/26/2017 04:27 pmQuote from: Alter Sachse on 12/26/2017 03:43 pmquote:- 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 656That 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?
Capture from SciNews's excellent video (this user must have some great sources). Shows the three satellites as 07, 08 and 09.
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.
Quote from: russianhalo117 on 12/26/2017 05:36 pmit 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.
Quote from: Liss on 12/26/2017 07:33 pmQuote from: russianhalo117 on 12/26/2017 05:36 pmit 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)
Quote from: jcm on 12/26/2017 07:54 pmQuote from: Liss on 12/26/2017 07:33 pmQuote from: russianhalo117 on 12/26/2017 05:36 pmit 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
Quote from: russianhalo117 on 12/26/2017 08:01 pmQuote from: jcm on 12/26/2017 07:54 pmQuote from: Liss on 12/26/2017 07:33 pmQuote from: russianhalo117 on 12/26/2017 05:36 pmit 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.
Quote from: jcm on 12/26/2017 08:14 pmQuote from: russianhalo117 on 12/26/2017 08:01 pmQuote from: jcm on 12/26/2017 07:54 pmQuote from: Liss on 12/26/2017 07:33 pmQuote from: russianhalo117 on 12/26/2017 05:36 pmit 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?
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 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 tostart 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.