According to the information, three satellites were launched, two by CASC and one by Our Space.
Do you have a link for this? What is the Chinese version of "Our Space"?
CASC mentions that three satellites were launched which are "communication technology test", regarding "Our Space", I may be wrong as I also read that it was DFH Satellite Co. or Aerospace Dongfanghong Satellite Co. Ltd.
https://mp.weixin.qq.com/s/xlbOlxLaFBqAq7D2sijHtA
I see. Your link here implies that all three sats were developed by CAST: 本次任务发射的3颗通信技术试验卫星，由中国航天科技集团有限公司五院研制，
I wonder if this kind of re-entries will be more normal after China starts launching its constellation of satellites, I would expect these satellites to be launched at least once a month, it all depends on how CASC plans to launch this constellation.
3 objects cataloged so far:
2021-076A/49112 in 1082 x 1106 km x 86.41°
2021-076B/49113 in 1085 x 1109 km x 86.40°
2021-076C/49114 in 1085 x 1111 km x 86.40°
I wonder if this kind of re-entries will be more normal after China starts launching its constellation of satellites, I would expect these satellites to be launched at least once a month, it all depends on how CASC plans to launch this constellation.
If the YZ-1S deorbit burn is fully successful, and if they plan to use a re-entry area over a remote sea, maybe not. Re-entry would be visible, weather allowing, but there would likely be no one to see it.
What may become more common is seeing the deorbit burn and/or the YZ-1S excess propellant dump.
86.4° 1096 km
A DFH satellite info is from https://mp.weixin.qq.com/s/DYeIdIhJaLOndWH5pAjFsQ
Thanks. This link appears to have been deleted.
The original text with Google translation is as follows:
通信技术试验卫星发射任务圆满成功
The launch mission of the communication technology test satellite was a complete success
航天东方红 航天东方红卫星有限公司
Aerospace Dongfanghong Aerospace Dongfanghong Satellite Co., Ltd.
2021年8月24日，由航天科技集团五院航天东方红卫星有限公司抓总研制的通信技术试验卫星搭乘长征二号丙运载火箭，由酒泉卫星发射中心成功发射。随后，卫星太阳翼顺利展开，在轨运行稳定，状态良好，标志着卫星发射任务取得圆满成功。
On August 24, 2021, the communication technology test satellite developed by the Aerospace Dongfanghong Satellite Co., Ltd. of the Fifth Academy of CASC took the Long March 2C carrier rocket and was successfully launched by the Jiuquan Satellite Launch Center. Subsequently, the satellite solar wing unfolded smoothly, operating stably in orbit and in good condition, marking the complete success of the satellite launch mission.
该卫星主要用于开展通信技术试验任务。
The satellite is mainly used to carry out communication technology test missions.