https://weibo.com/6528178851/L3kZFlgBCvia web translation:
On November 27, 2021 at 0:40 Beijing time China successfully launched the "Zhongxing 1D" satellite with the Long March III B carrier rocket at the Xichang Satellite Launch Center. The satellite successfully entered its intended orbit and the launch mission was a complete success. The mission was the 399th flight of the Long March series launch vehicles.
There's no news on this rocket's serial number
2021-114A/49505 in 182 x 35831 km x 27.06° (S/C)
2021-114B/49506 in 143 x 34386 km x 27.06° (3rd stage)
http://www.news.cn/english/2021-11/27/c_1310335484.htmXICHANG, Nov. 27 (Xinhua) -- China successfully sent a new satellite into space from the Xichang Satellite Launch Center in southwest China's Sichuan Province Saturday.
The satellite, Zhongxing-1D, was launched at 0:40 a.m. (Beijing Time) by a Long March-3B carrier rocket and entered the planned orbit successfully.
This launch marked the 399th mission for the Long March series carrier rockets.
FWIW Chinasat-1A and Chinasat-1C were thought to be military tactical communication satellites
Translated from
航天科技集团长三乙火箭发射中星1D卫星任务侧记 bu Google.
For the first time, "Eastern shooting direction two-way wind compensation" was adopted
The location of the Xichang Satellite Launch Center has a subtropical monsoon climate. In winter, high-altitude winds are very obvious. The experience of China's aerospace over the years has shown that high-altitude winds are an important factor affecting the success or failure of the launch.
In response to this problem, at the beginning of this year, the CZ-3A rocket team incorporated it into the topic for research. This flight is the first time for the team to adopt the "East-fire direction two-way wind compensation" method, which can reduce the impact of high-altitude wind on launch release conditions and flight reliability.
Chen Minkang, chief designer of CZ-3B Rocket, introduced that on the one hand, the team carried out refined design of high-altitude wind assessment and release conditions to increase the probability of release under high-altitude wind conditions in winter; on the other hand, the team reduced the high-altitude wind The load design is improved, and the “two-way wind compensation” method and the method of active load shedding of the first-stage rocket are used to reduce the flight load.
"A series of combo punches make us not afraid of high-altitude wind in winter." Chen Minkang said, "Launch with confidence and fly with confidence. This is the state we want to achieve."
The various technologies of the Gold Medal Rockets "CZ-3B" have been very mature, but for the gold medal team of the Gold Medal Rockets, they have never been satisfied with the current state and stopped moving forward. Individual improvements in local processes and materials are continuing, and the Gold Medal Rockets have been working towards a more perfect direction.
...
In the next month, the CZ-3A series rocket team will also have a launch mission. Most of the team's personnel will continue to stay to complete the follow-up tasks, and some will stick to it until the end, ushering in the successful ending of the CZ-3A series of rockets this year.
The last segment proved there will be rest launch of CZ-3 serials, I think those will be two CZ-3B themselves.
Positioned at 130.15 E, near to ZX-1A and ZX-2D.