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Yaogan-20A/B/C, Long March 4C, JSLC - August 9th, 2014
by
beidou
on 03 Apr, 2014 18:21
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Will the next Chinese launch be a Yaogao Weixing?
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#1
by
beidou
on 07 Jul, 2014 19:47
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#2
by
beidou
on 14 Jul, 2014 16:02
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This launch may not necessarily be in TSLC, it could be from JSLC as well. Let's just wait and see.
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#3
by
Galactic Penguin SST
on 03 Aug, 2014 14:26
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Base on this I think we need to bump this thread and change the title's launch place to JSLC......
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#4
by
Galactic Penguin SST
on 04 Aug, 2014 09:58
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Some plausible hint the points to this launch carrying the 4th YG-9/16/17 triplet soon can be found in
this article.
1. The payload
s have been transferred to the launch pad several days ago.
2. In the article it was mentioned the payload was flown to JSLC
over two days - hinting at multiple payloads. What kind of launch would come from JSLC with multiple sats that requires a tracking ship?
FYI latest reports points to T-zero being on 8 August.....
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#5
by
Satori
on 04 Aug, 2014 11:42
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On 9ifly someone is also saying that the launch cannot be (?) on August 8 and is talking about August 18. Automatic translation doesn't help much. Can you help with this?
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#6
by
Galactic Penguin SST
on 04 Aug, 2014 12:38
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On 9ifly someone is also saying that the launch cannot be (?) on August 8 and is talking about August 18. Automatic translation doesn't help much. Can you help with this?
Just superstitions.
Several previous Chinese launches related with the number 8 has failed - e.g. the last two on August 18 (1996, 2011), so one say that maybe the Chinese would avoid launching on that day. Doesn't look like to be true (unlike, e.g. Russians' October 24).....
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#7
by
tmtsquish
on 04 Aug, 2014 20:44
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On 9ifly someone is also saying that the launch cannot be (?) on August 8 and is talking about August 18. Automatic translation doesn't help much. Can you help with this?
Just superstitions. Several previous Chinese launches related with the number 8 has failed - e.g. the last two on August 18 (1996, 2011), so one say that maybe the Chinese would avoid launching on that day. Doesn't look like to be true (unlike, e.g. Russians' October 24).....
Isn't the GF-2 going around the 19th, with this launch happening some time in the near future?
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#8
by
Liss
on 04 Aug, 2014 21:45
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YUAN WANG 5
Position Recorded on: 2014-08-03 05:44:18 (UTC)
Lat/Lon: -6.070667 / 105.8303
Speed/Course: 20.1 kn / 219°
All other active ships are in home port.
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#9
by
Galactic Penguin SST
on 06 Aug, 2014 14:05
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I just took a look at the current orbital planes of the "CNOSS" system - if this launch is for replacing YG-9, then the launch time for the next few days would be around 05:00 UTC; if it isn't and is for expansion of the system to a 5-orbital plane system, then the possible launch times are probably around 16:00 and 21:00 UTC.
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#10
by
Satori
on 06 Aug, 2014 15:22
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What is the source for the August 9 launch date?
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#11
by
Galactic Penguin SST
on 07 Aug, 2014 15:30
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Related?
A1302/14 - THE SEGMENT JIAYUGUAN VOR 'CHW'- N3931.2E10157.0 OF ATS RTE B215 CLSD AT 11,000 M AND BELOW. FL000 - FL361, 08 AUG 01:50 2014 UNTIL 08 AUG 05:10 2014. CREATED: 07 AUG 14:35 2014
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#12
by
Chris Bergin
on 07 Aug, 2014 20:27
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So do we actually know the confirmed date - and estimated launch time?
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#13
by
beidou
on 07 Aug, 2014 20:53
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#14
by
Satori
on 07 Aug, 2014 20:53
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So do we actually know the confirmed date - and estimated launch time?
Rumors point for launch to take place at 0330UTC on August 8... just rumors.
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#15
by
Chris Bergin
on 09 Aug, 2014 00:46
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Any hint of this one going uphill in a few hours (based on that T-0 time from yesterday)?
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#16
by
Galactic Penguin SST
on 09 Aug, 2014 02:40
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Any hint of this one going uphill in a few hours (based on that T-0 time from yesterday)?
Oh don't get me started - the clues are only vaguely suggestive of a launch happening soon....
Regardless, I do think it may happen within the next few hours. Let's see...
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#17
by
Galactic Penguin SST
on 09 Aug, 2014 06:36
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Well, um, no insider source this time...
...but the state media has reported that it (they?
) has been launched successfully at 05:45 UTC. More to come soon...
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#18
by
Liss
on 09 Aug, 2014 07:30
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Umm, new combination of launch site and launch vehicle => new satellite type?
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#19
by
Galactic Penguin SST
on 09 Aug, 2014 07:34
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Umm, new combination of launch site and launch vehicle => new satellite type?
Um Igor, you have forgotten YG-9/16/17?
In fact this launch time is just right for YG-20 being the replacement for YG-9 launched more than 4 years ago...
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#20
by
Liss
on 09 Aug, 2014 07:48
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My fault -- I've checked SSO launches only :-(
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#21
by
NovaSilisko
on 09 Aug, 2014 08:08
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That's... probably not healthy to breathe. Or be within a hundred meters of.
Nitrogen Dioxide gas, correct? Produced from the Nitrogen Tetroxide left in the rocket?
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#22
by
Chris Bergin
on 09 Aug, 2014 08:25
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#23
by
chewi
on 09 Aug, 2014 08:36
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China launches remote-sensing satellitehttp://news.xinhuanet.com/english/china/2014-08/09/c_133544286.htmJIUQUAN, Aug. 9 (Xinhua) -- China on Saturday sent a remote-sensing satellite into scheduled orbit.
The Yaogan XX satellite blasted off at 1:45 p.m. on the back of a Long March 4C carrier rocket from the Jiuquan Satellite Launch Center in the country's northwestern gobi desert, according to the center's statement.
The satellite will be used to conduct scientific experiments, carry out land surveys, monitor crop yields and aid in preventing and reducing natural disasters, the center said.
The launch marked the 190th mission for the nation's Long March rocket family.
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#24
by
Galactic Penguin SST
on 09 Aug, 2014 09:21
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China launches remote-sensing satellite
http://news.xinhuanet.com/english/china/2014-08/09/c_133544286.htm
JIUQUAN, Aug. 9 (Xinhua) -- China on Saturday sent a remote-sensing satellite into scheduled orbit.
The Yaogan XX satellite blasted off at 1:45 p.m. on the back of a Long March 4C carrier rocket from the Jiuquan Satellite Launch Center in the country's northwestern gobi desert, according to the center's statement.
The satellite will be used to conduct scientific experiments, carry out land surveys, monitor crop yields and aid in preventing and reducing natural disasters, the center said.
The launch marked the 190th mission for the nation's Long March rocket family.
In higher res:
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#25
by
Satori
on 09 Aug, 2014 09:37
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This was CZ-4C (Y14).
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#26
by
Liss
on 09 Aug, 2014 10:15
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First elset appeared at space-track.org.
Orbit is 63.40°, 1088x1124 km, 107.16 min.
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#27
by
input~2
on 09 Aug, 2014 12:09
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At this time 6 objects have been catalogued by USSTRATCOM:
Presumably 3 S/C (1 main & 2 subsatellites), 2 3rd stage debris or subsatellite mounting elements, 1 3rd stage
2014-047A/40109 in 1087 x 1104 km x 63.40°
2014-047B/40110 in 1087 x 1103 km x 63.40°
2014-047C/40111 in 1086 x 1104 km x 63.41°
2014-047D/40112 in 1089 x 1104 km x 63.40°
2014-047E/40113 in 1085 x 1103 km x 63.40°
2014-047F/40114 in 898 x 1111 km x 63.45° (CZ-4C 3rd stage)
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#28
by
cartman
on 09 Aug, 2014 12:38
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Forgive me if this have been asked before, but why is the payload fairing shedding so much debris ?
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#29
by
Galactic Penguin SST
on 09 Aug, 2014 12:41
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News report:
http://news.cntv.cn/2014/08/09/VIDE1407583741510301.shtmlExact liftoff time 05:45:03.343 UTC.
Forgive me if this have been asked before, but why is the payload fairing shedding so much debris ?
Thermal insulation boards for the satellites - Jiuquan (and even so for Taiyuan) can get very cold in the night even in the summer! Also check out the original Ariane rockets for another rocket that sheds so much thermal insulation at launch.
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#30
by
input~2
on 09 Aug, 2014 12:53
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#31
by
input~2
on 09 Aug, 2014 13:08
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From the video, flight path was East of Hainan
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#32
by
jcm
on 09 Aug, 2014 14:48
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#33
by
cartman
on 09 Aug, 2014 23:20
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News report: http://news.cntv.cn/2014/08/09/VIDE1407583741510301.shtml
Exact liftoff time 05:45:03.343 UTC.
Forgive me if this have been asked before, but why is the payload fairing shedding so much debris ?
Thermal insulation boards for the satellites - Jiuquan (and even so for Taiyuan) can get very cold in the night even in the summer! Also check out the original Ariane rockets for another rocket that sheds so much thermal insulation at launch.
Thanks for your answer! So I guess this means that they do not have active climate control, or that it is not powerful enough for the night temperatures.
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#34
by
Lewis007
on 10 Aug, 2014 10:30
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Two launch videos on YouTube, which are easier to download for those who wish to add it to their files
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#35
by
input~2
on 10 Aug, 2014 18:47
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The 3 lower lines on the display on the left indicate the expected times for the 3 satellites separations:
星(副星一)分离 Secondary satellite # 1 separation
星(主 星)分离 Primary satellite separation
星(副星二)分离 Secondary satellite # 2 separation
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#36
by
jcm
on 12 Aug, 2014 13:57
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The 3 lower lines on the display on the left indicate the expected times for the 3 satellites separations:
星(副星一)分离 Secondary satellite # 1 separation
星(主 星)分离 Primary satellite separation
星(副星二)分离 Secondary satellite # 2 separation
So that looks like T+1143 s for the primary sat sep, can't make out the ones for the secondary sat but maybe
1141 and 1145 s ?
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#37
by
input~2
on 12 Aug, 2014 18:55
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The 3 lower lines on the display on the left indicate the expected times for the 3 satellites separations:
星(副星一)分离 Secondary satellite # 1 separation
星(主 星)分离 Primary satellite separation
星(副星二)分离 Secondary satellite # 2 separation
So that looks like T+1143 s for the primary sat sep, can't make out the ones for the secondary sat but maybe
1141 and 1145 s ?
I tend to read 1217s, 1345s and 1415s (no guarantee
)
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#38
by
input~2
on 14 Aug, 2014 14:56
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Objects D and F have been switched: now D is the rocket body (CZ-4C 3rd stage) and F is labeled "CZ-4C debris"
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#39
by
Targeteer
on 05 Dec, 2014 14:04
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