Shiyan 31
Chinese satellite reported to be for "new optical imaging technological demonstration" purposes. Actual usage not known.
The Long March 2D, also known as the Chang Zheng 2D, CZ-2D and LM-2D, is a Chinese orbital carrier rocket. It is a 2-stage carrier rocket mainly used for launching LEO and SSO satellites.
Service provider
Government • CHN
The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.
Objects from this launch
2 objects
SATCAT inventory for 2025-227
Last checked: 2026-04-11T06:11:01.208+00:00
Last success: 2026-04-11T06:11:01.208+00:00
Last non-empty: 2026-04-11T06:11:01.208+00:00
Latest snapshot: 2026-04-10T06:11:01.708+00:00
Snapshot hash: 2e19a1b7100c3b3ff3b1603e5874227dcc0b26a6f7cb3749992698d271cfae81
LL2 payloads: 0SATCAT payloads: 1Delta: +1RB: 1DEB: 0UNK: 0
Open SATCAT inventory
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SATCAT payload objects
SHIYAN-31
Technical details
Orbit type: ORBOrbit center: EALaunch site: JSCPeriod: 94.51 min
Inc: 80.0°
488 km → 502 km
SATCAT non-payload objects
CZ-2D R/B
Technical details
Orbit type: ORBOrbit center: EALaunch site: JSCPeriod: 94.05 min
Inc: 80.2°
459 km → 486 km