Bajisitan PRSC-S1 - Kuaizhou-1A Pro - Xichang - July 31, 2025 (02:00 UTC)

[mikezang]

The NOTAM from Xichang for solid or YZ upper stage?

[Galactic Penguin SST]

The NOTAM from Xichang for solid or YZ upper stage?

Does not look like a Xichang originating launch at all, much more likely it’s from Jiuquan.

[mikezang]

The NOTAM from Xichang for solid or YZ upper stage?

Does not look like a Xichang originating launch at all, much more likely it’s from Jiuquan.

Maybe you are right..

[mikezang]

The NOTAM from Xichang for solid or YZ upper stage?

Does not look like a Xichang originating launch at all, much more likely it’s from Jiuquan.

But direction little different...

[TheKutKu]

There is little confusion on the launch site, it is very likely Xichang, when tracing the line from the center of the notam it is only a minor deviation from Xichang (0.3°), the deviation with Jiuquan is larger (10°)

Furthermore the NOTAM is very similar to the KZ-1A Pro (KZ-1B) upper stage NOTAM of the Dec 4 2024 launch from Xichang (pic 4)

We know that a KZ-1A series launcher is close a launch campaign from this Expace communique (Jul 12) https://mp.weixin.qq.com/s/VN4sC8cSWAkjh4fmyDds9A and a KZ-1A series launcher was also seen in final assembly in a recent visit of the Party Secretary of Hubei to Expace (Jun 25), I believe KZ-1A series is most likely.
 
As for CZ-11, informations  say that it should fly in October, not that soon.

[mikezang]

There is little confusion on the launch site, it is very likely Xichang, when tracing the line from the center of the notam it is only a minor deviation from Xichang (0.3°), the deviation with Jiuquan is larger (10°)

Furthermore the NOTAM is very similar to the KZ-1A Pro (KZ-1B) upper stage NOTAM of the Dec 4 2024 launch from Xichang (pic 4)

We know that a KZ-1A series launcher is close a launch campaign from this Expace communique (Jul 12) https://mp.weixin.qq.com/s/VN4sC8cSWAkjh4fmyDds9A and a KZ-1A series launcher was also seen in final assembly in a recent visit of the Party Secretary of Hubei to Expace (Jun 25), I believe KZ-1A series is most likely.
 
As for CZ-11, informations  say that it should fly in October, not that soon.

This will be confirmed when Chian NOTAM issued!

[Abdullah Hussain]

There is little confusion on the launch site, it is very likely Xichang, when tracing the line from the center of the notam it is only a minor deviation from Xichang (0.3°), the deviation with Jiuquan is larger (10°)

Furthermore the NOTAM is very similar to the KZ-1A Pro (KZ-1B) upper stage NOTAM of the Dec 4 2024 launch from Xichang (pic 4)

We know that a KZ-1A series launcher is close a launch campaign from this Expace communique (Jul 12) https://mp.weixin.qq.com/s/VN4sC8cSWAkjh4fmyDds9A and a KZ-1A series launcher was also seen in final assembly in a recent visit of the Party Secretary of Hubei to Expace (Jun 25), I believe KZ-1A series is most likely.
 
As for CZ-11, informations  say that it should fly in October, not that soon.

It looks to me that there is one KZ-1A and KZ-1A pro.
If they are gonna launch i believe it will most likely be KZ-1A Pro with Hashiao-2 satellite.  If not then they will do a return to flight of KZ-1A with possible Tianqi IoT Satellites. So, It's safe to eliminate CZ-11 as it scheduled for October and KZ-11 as it only launch from Jiuquan, yeah it will be interesting to know if it launches from Xichang, but is not likely.

[mikezang]

The China NOTAM issued!

[mikezang]

The MSA issued!

[mikezang]

It is said this will be Kuaizhou-11 Y8 and one of payloads might be Bajisitan Yaogan (巴基斯坦遥感卫星)...

[mikezang]

The YBBB NOTAM updated!

[mikezang]

Launched!

[mikezang]

The payload is Bajisitan PRSC-EO2 (巴基斯坦PRSC-EO2).

[TheKutKu]

KZ-1A pro
Official English abbreviation seems PRSC-S1


Just the video feed: https://www.bilibili.com/video/BV1gY82zGEA6

[jcm]

https://www.chinanews.com.cn/gn/2025/07-31/10456750.shtml


China News Service, Beijing, July 31 (Ma Shuaisha, Liu Jia) At 10:00 AM Beijing time on July 31, my country successfully launched Pakistan Remote Sensing Satellite 01 from the Xichang Satellite Launch Center using a Kuaizhou-1A carrier rocket. The satellite entered its planned orbit smoothly, marking a complete success. The satellite will be primarily used for land surveys and disaster prevention and mitigation

[Abdullah Hussain]

https://www.chinanews.com.cn/gn/2025/07-31/10456750.shtml


China News Service, Beijing, July 31 (Ma Shuaisha, Liu Jia) At 10:00 AM Beijing time on July 31, my country successfully launched Pakistan Remote Sensing Satellite 01 from the Xichang Satellite Launch Center using a Kuaizhou-1A carrier rocket. The satellite entered its planned orbit smoothly, marking a complete success. The satellite will be primarily used for land surveys and disaster prevention and mitigation

Bro the rocket is Kuaizhou-1A Pro not Kuaizhou-1A.

[mikezang]

https://www.chinanews.com.cn/gn/2025/07-31/10456750.shtml


China News Service, Beijing, July 31 (Ma Shuaisha, Liu Jia) At 10:00 AM Beijing time on July 31, my country successfully launched Pakistan Remote Sensing Satellite 01 from the Xichang Satellite Launch Center using a Kuaizhou-1A carrier rocket. The satellite entered its planned orbit smoothly, marking a complete success. The satellite will be primarily used for land surveys and disaster prevention and mitigation

Only Kuaizhou-1A and pro just a modification, check all news...

Bro the rocket is Kuaizhou-1A Pro not Kuaizhou-1A.

[jcm]

https://www.chinanews.com.cn/gn/2025/07-31/10456750.shtml


China News Service, Beijing, July 31 (Ma Shuaisha, Liu Jia) At 10:00 AM Beijing time on July 31, my country successfully launched Pakistan Remote Sensing Satellite 01 from the Xichang Satellite Launch Center using a Kuaizhou-1A carrier rocket. The satellite entered its planned orbit smoothly, marking a complete success. The satellite will be primarily used for land surveys and disaster prevention and mitigation

Bro the rocket is Kuaizhou-1A Pro not Kuaizhou-1A.

This is a direct translation  of the link to chinanews.com.  They just call it " 快舟一号甲 " (Kuaizhou yihao jia) and do not mention the Pro variant. That doesn't mean it's not, just that the official launch statement doesn't describe it as such.

[Abdullah Hussain]

https://www.chinanews.com.cn/gn/2025/07-31/10456750.shtml


China News Service, Beijing, July 31 (Ma Shuaisha, Liu Jia) At 10:00 AM Beijing time on July 31, my country successfully launched Pakistan Remote Sensing Satellite 01 from the Xichang Satellite Launch Center using a Kuaizhou-1A carrier rocket. The satellite entered its planned orbit smoothly, marking a complete success. The satellite will be primarily used for land surveys and disaster prevention and mitigation

Only Kuaizhou-1A and pro just a modification, check all news...

Bro the rocket is Kuaizhou-1A Pro not Kuaizhou-1A.

I know but both have know differences.

[Abdullah Hussain]

https://www.chinanews.com.cn/gn/2025/07-31/10456750.shtml


China News Service, Beijing, July 31 (Ma Shuaisha, Liu Jia) At 10:00 AM Beijing time on July 31, my country successfully launched Pakistan Remote Sensing Satellite 01 from the Xichang Satellite Launch Center using a Kuaizhou-1A carrier rocket. The satellite entered its planned orbit smoothly, marking a complete success. The satellite will be primarily used for land surveys and disaster prevention and mitigation

Bro the rocket is Kuaizhou-1A Pro not Kuaizhou-1A.

This is a direct translation  of the link to chinanews.com.  They just call it " 快舟一号甲 " (Kuaizhou yihao jia) and do not mention the Pro variant. That doesn't mean it's not, just that the official launch statement doesn't describe it as such.

Yeah, on Next Spaceflight and on Chinese Wikipedia they all called it Kuaizhou-1A not 1A pro. But bro both are different variant.  It just like soyuz Rocket. Like sometimes Soyuz-U Sometimes Soyuz-2.1b/1a, etc.