CZ-3A (ZX-20A / Zhongxing-20A / Chinasat-20A / ST 1B) - XLSC - 24.11.2010

Name:          OBJECT A
Brightness:     5.0 mag (at 1000 km, 50% illuminated)
               0.9 mag (at perigee, full illumination)
USSPACECOM Nr: 37234    Internat. Designator: 2010-064A
Orbit:         215.7 x 41849 km, 12.55h  Inclination: 24.9°
Age Elements:   0.3 days

Name:          OBJECT B
Brightness:     5.0 mag (at 1000 km, 50% illuminated)
               0.8 mag (at perigee, full illumination)
USSPACECOM Nr: 37235    Internat. Designator: 2010-064B
Orbit:         199.6 x 41777 km, 12.52h  Inclination: 24.9°Age Elements:   0.3 days

ZX-20A est un satellite de communication militaire, assimilé civile.

"China launched the second Shen Tong-1 military communications satellite via a CZ-3A Chang Zheng-3A (Y19) launch vehicle, providing secured voice/data communications services for PLA ground users in Ku-band. Receiving the designation ZX-20A ZhongZhing-20A, the satellite was launched from the Xi Chang Satellite Launch Center, in Sichuan Province at 00:09 loca time on Friday.
...
The spacecraft features a number of new technologies, providing Ku-band communication and utilizing the advanced multiple steerable spot beam antenna technology to enable ground users to communicate whilst on the move. These satellites are the first to use secured uplink transmission for satellite antenna control and have the most powerful onboard data processing capability."

by Satori @ NSF

http://www.nasaspaceflight.com/2010/11/china-launches-shen-tong-1-military-satellite-via-long-march-3a/

L'étage d'injection du lanceur CZ-3A est rentré dans l'atmosphère le 13 janvier 2021, à 23h06 GMT.
https://twitter.com/planet4589/status/1361122993494257664