2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Spacecraft
  3. GECAM B
// astronomy · 2020

GECAM B

Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor is a constellation of two small X-ray and gamma-ray all-sky observatories to search for gamma-ray counterparts to gravitational wave events.. GECAM B was launched on December 9, 2020 aboard a Chang Zheng 11 from Xichang. Latest status in GCAT: in orbit.

COSPAR 2020-094BNORAD 47235China

Identity

Name in GCAT
Xiaomu
Common name
GECAM B
Payload designation
GECAM B
Other names
Huairou-1B
International designator
2020-094B
NORAD catalog number
47235
GCAT identifier
S47235
UN registration
ST/SG/SER.E/1033

Mission

Mission type
Astronomy
Use
Civil government
Program
CAS
Owner
CAS
Country
China
Builder
Shanghai Engineering Center for Microsatellites, SIMIT
Platform (bus)
GECAM

Launch

Date
December 9, 2020 · 20:14 UTC
Launch record
2020-094Success
Spaceport
Xichang · pad LC4

Orbit and fate

Orbit class (GCAT)
LLEO/I
Perigee
586 km
Apogee
604 km
Inclination
29.00°
Status
In orbit
Last known active
February 2023

Size

Mass
150 kg
Dry mass
150 kg
Length
1.0 m
Diameter
0.30 m
Span
1.5 m

Launched together

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q111945511 (CC0).