Author Topic: Fengyun-3G - CZ-4B - Jiuquan - April 16, 2023 (01:36 UTC)  (Read 11672 times)

Offline mikezang

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我国今年将发射两颗风云气象卫星
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my country will launch two Fengyun meteorological satellites this year

The FY-3G satellite is expected to be launched in April. As the first low-inclination orbit precipitation measurement satellite in China, the satellite is mainly used for heavy precipitation monitoring of disastrous weather systems, and provides three-dimensional structure information of precipitation in low- and middle-latitude regions around the world. The Fengyun-3 G star is equipped with 4 payloads, 2 of which are newly developed and 1 of which is an upgrade.
The last FY-3E was launched from Jiuquan in 2021, though before that past FY-3s were launched from Taiyuan.
« Last Edit: 04/16/2023 01:37 am by mikezang »

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Re: Fengyun-3G - CZ-4C - Jiuquan - April, 2023
« Reply #1 on: 02/22/2023 05:07 pm »
Note that FY-3G is a non-polar LEO dedicated precipitation measurement satellite of the FY-3 series, quite different from the other FY-3 members.
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Offline russianhalo117

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Re: Fengyun-3G - CZ-4C - Jiuquan - April, 2023
« Reply #2 on: 02/22/2023 05:50 pm »
Note that FY-3G is a non-polar LEO dedicated precipitation measurement satellite of the FY-3 series, quite different from the other FY-3 members.
Also note that the new inclination FY-3 second generation sub-series has reserved options of six upgraded FY-3 sats consisting of the initial FY-3G sat, the presently exercised options FY-3H through FY-3J and the presently un-exercised options of FY-3K and FY-3L. The formerly proposed FY-3 third generation series formerly named FY-3M or FY-3 Modernized in English became the FY-5 series.
« Last Edit: 02/22/2023 06:52 pm by russianhalo117 »

Offline mikezang

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Re: Fengyun-3G - CZ-4C - Jiuquan - April, 2023
« Reply #3 on: 04/03/2023 11:29 am »
4月中旬风云三号G星(风云三号07星)计划发射
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【The name is up to you! The satellite is made by our aviation company and will be released in the middle of this month [Looking forward]] In mid-April, the Fengyun-3 G star (Fengyun-307 star) developed by the Eighth Academy of China Aviation Academy is planned to be launched, mainly for precipitation climatology research and disastrous weather System heavy precipitation monitoring. In order to expand the influence of the rain star and give full play to the benefits of the satellite, please brainstorm and give G star a powerful and powerful name! Search the "Fengyun Satellite" official account and write down the Chinese name and simple meaning in the message area. The deadline for comments is 18:00 on April 7, 2023. If the name is selected, there is a chance to get a plush toy of Fengyun-3 Satellite!
I guess it might be April 15.

Online Satori

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« Last Edit: 04/06/2023 05:30 pm by Satori »

Offline Steven Pietrobon

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Re: Fengyun-3G - CZ-4C - Jiuquan - April 15?, 2023
« Reply #5 on: 04/08/2023 07:23 am »
4月中旬风云三号G星(风云三号07星)计划发射

I guess it might be April 15.
Why?

"In mid-April, the Fengyun-3 G star (Fengyun-307 star) developed by the Eighth Academy of China Aviation Academy is planned to be launched,"
« Last Edit: 04/08/2023 07:23 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline mikezang

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Re: Fengyun-3G - CZ-4C - Jiuquan - April 15?, 2023
« Reply #6 on: 04/12/2023 06:12 am »

Offline Liss

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WMO lists 50° as FY-3G orbit inclination; the NOTAMed areas seem to support this.
This message reflects my personal opinion based on open sources of information.

Offline mikezang

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WMO lists 50° as FY-3G orbit inclination; the NOTAMed areas seem to support this.
I heard it will be 33°, my info is wrong?

Offline Liss

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WMO lists 50° as FY-3G orbit inclination; the NOTAMed areas seem to support this.
I heard it will be 33°, my info is wrong?
You cannot easily launch to 33° from Jiuquan or Taiyuan. For such inclination, Xichang or Wenchang would be used.
This message reflects my personal opinion based on open sources of information.

Offline mikezang

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Re: Fengyun-3G - CZ-4C - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #10 on: 04/12/2023 09:31 am »
WMO lists 50° as FY-3G orbit inclination; the NOTAMed areas seem to support this.
I heard it will be 33°, my info is wrong?
You cannot easily launch to 33° from Jiuquan or Taiyuan. For such inclination, Xichang or Wenchang would be used.
So this launch won't be CZ-4C for Fengyun-3G?

Offline Liss

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Re: Fengyun-3G - CZ-4C - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #11 on: 04/12/2023 10:14 am »
WMO lists 50° as FY-3G orbit inclination; the NOTAMed areas seem to support this.
I heard it will be 33°, my info is wrong?
You cannot easily launch to 33° from Jiuquan or Taiyuan. For such inclination, Xichang or Wenchang would be used.
So this launch won't be CZ-4C for Fengyun-3G?
So this launch will be CZ-4C with FY-3G to 50°.
This message reflects my personal opinion based on open sources of information.

Online Alter Sachse

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Re: Fengyun-3G - CZ-4C - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #12 on: 04/12/2023 10:41 am »
According to the document
https://space.oscar.wmo.int/satellites/view/fy_3g

altitude 407 km
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Online Galactic Penguin SST

It looks like a possible drop zone (perhaps for the 2nd stage) filed for this launch has accidentally caused a diplomatic incident between the PRC and ROC as the ROC accidentally thought this is for a no-fly zone set-up. The downrange track and dates involved seems to match.

(I have been unable to find related NOTAMs within notices for the Taipei and Fukuoka FIRs)

https://www.reuters.com/world/asia-pacific/taiwan-determined-safeguard-freedom-democracy-president-tsai-says-2023-04-12/

https://www.reuters.com/world/asia-pacific/china-close-airspace-north-taiwan-april-16-18-sources-2023-04-12/

EDIT: This is the zone in question, originally filed for 01:00 - 06:00 UTC April 16-18. The area and direction seems to match with this launch.

https://twitter.com/BenHsiao0522/status/1646114692031709185
« Last Edit: 04/12/2023 11:39 am by Galactic Penguin SST »
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Online Galactic Penguin SST

BTW I saw an insider commenting a LM-4B will be used. WMO lists the satellite being going to a 407 km orbit, which is indeed low enough to not needing a re-ignitable 3rd stage.
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Offline mikezang

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Re: Fengyun-3G - CZ-4C - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #15 on: 04/13/2023 01:20 am »
BTW I saw an insider commenting a LM-4B will be used. WMO lists the satellite being going to a 407 km orbit, which is indeed low enough to not needing a re-ignitable 3rd stage.
It might be CZ-4C if RCAA NOATM is active.

Offline russianhalo117

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Re: Fengyun-3G - CZ-4B - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #16 on: 04/13/2023 02:11 am »
BTW I saw an insider commenting a LM-4B will be used. WMO lists the satellite being going to a 407 km orbit, which is indeed low enough to not needing a re-ignitable 3rd stage.
It might be CZ-4C if RCAA NOATM is active.
Galactic Penguin SST's insider information post is more credible. Both CZ-4B  and CZ-4C can use RCAA.

Online Bean Kenobi

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Re: Fengyun-3G - CZ-4B - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #17 on: 04/13/2023 11:26 am »
BTW I saw an insider commenting a LM-4B will be used. WMO lists the satellite being going to a 407 km orbit, which is indeed low enough to not needing a re-ignitable 3rd stage.
It might be CZ-4C if RCAA NOATM is active.
Galactic Penguin SST's insider information post is more credible. Both CZ-4B  and CZ-4C can use RCAA.

Just to remember, all previous FY-3 used CZ-4C.

Online Alter Sachse

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Re: Fengyun-3G - CZ-4B - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #18 on: 04/13/2023 03:08 pm »
BTW I saw an insider commenting a LM-4B will be used. WMO lists the satellite being going to a 407 km orbit, which is indeed low enough to not needing a re-ignitable 3rd stage.
It might be CZ-4C if RCAA NOATM is active.
Galactic Penguin SST's insider information post is more credible. Both CZ-4B  and CZ-4C can use RCAA.

Just to remember, all previous FY-3 used CZ-4C.
That's right.
But another orbit is planned here.
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline russianhalo117

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Re: Fengyun-3G - CZ-4B - Jiuquan - April 16, 2023 (~01:35 UTC)
« Reply #19 on: 04/13/2023 07:35 pm »
BTW I saw an insider commenting a LM-4B will be used. WMO lists the satellite being going to a 407 km orbit, which is indeed low enough to not needing a re-ignitable 3rd stage.
It might be CZ-4C if RCAA NOATM is active.
Galactic Penguin SST's insider information post is more credible. Both CZ-4B  and CZ-4C can use RCAA.

Just to remember, all previous FY-3 used CZ-4C.
That's right.
But another orbit is planned here.
Correct this is the first FY-3 series sat in a new subseries of upto six spacecraft with additional instruments and other differences.
« Last Edit: 04/13/2023 07:37 pm by russianhalo117 »

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