BackForward Satellite: FY-4B 

Satellite details
Acronym FY-4B
Full name Feng-Yun - 4B
WIGOS Station Identifier ---
Satellite Description
  • 2nd flight unit of the FY-4 programme.
  • Mission: operational meteorology.
  • Substantial contribution to space weather.
  • See https://fy4.nsmc.org.cn/nsmc/en/theme/FY4B.html 
Mass at launch 5400 kg Dry mass
Power 3200 W
Data access link http://data.nsmc.org.cn/portalsite/default.aspx
Data access information
  • Near-real time availability of full resolution data by HRIT and CMACast.
  • Availability of selected information by LRIT.
  • Meteorological warnings (WAIB) sharing the LRIT link.
  • Availability of DCP messages by land lines.
Orbit Geostationary orbit Altitude 35786 km
Longitude 105° E

 

Space agency CMA , NRSCC
Status Operational
Details on Status
(as available)
  • Relocated from 133E to 105E in Feb 2024
Launch 02 Jun 2021 EOL ≥2028
Last update: 2024-04-15
Associated satellite programme and related satellites

Note: red tag: no longer operational , green tag: operational , blue tag : future

Satellite Payload

All known Instruments flying on FY-4B

Acronym Full name
DCS Data Collection Service
AGRI Advanced Geostationary Radiation Imager
SEP/HEPS Space Environment Package / High Energy Particles Sensor
SEP-fields Space Environment Package - fields
GHI Geostationary High-speed Imager
SEP/MEPS Space Environment Package / Medium Energy Particles Sensor
SEP/LEPS Space Environment Package / Low Energy Particles Sensor
FGM Fluxgate Magnetometer
GIIRS-2 Geostationary Interferometric Infrared Sounder-2
Show instrument status and calibration
Satellite Field of View

Estimate of the satellite's footprint, assuming a zenith angle of 75 °
You can drag the image around and zoom using the mousewheel

Map cannot be displayed!
Satellite frequencies for Earth Observation, data transfer and platform communications and control
Frequencies for satellite management
Service Direction Frequency (MHz) Emission designator Bandwidth (kHz) Polarisation D/A Data rate (kbps) or Baseband (kHz) Comments
TARS E-S 2047 MHz 8M0GXD-- 10000 kHz RHCP D   Ranging
TARS S-E 2227 MHz 8M0GXD-- 10000 kHz RHCP D   Ranging
TARS S-E 1693 MHz 8M0GXD-- 8000 kHz linear D   Ranging
T&C E-S 2067.5 MHz 85000 kHz RHCP D   Telemetry and commands
T&C S-E 2245 MHz 90000 kHz RHCP D   Telemetry and commands
Frequencies for scientific data acquisition and communication services at ground stations
Service Direction Frequency (MHz) Bandwidth (kHz) Polarisation D/A Data rate (kbps) or Baseband (kHz) Comments
DCPS E-S 401.1 MHz - 401.4 MHz - RHCP D   Regional DCP reports
DCPS E-S 402 MHz - 402.1 MHz - RHCP D   International DCP reports
DCPS S-E 1686 MHz - 1690 MHz - linear D   DCP report relay
CDAS S-E 7450 MHz - 7550 MHz - RHCP&LHCP D   Raw Data
HRIT E-S 8175 MHz - 8195 MHz - RHCP D   High Resolution Data
HRIT E-S 8195 MHz - 8215 MHz - RHCP D   High Resolution Data
HRIT S-E 1675 MHz - 1687 MHz - linear D   High Resolution Data
LRIT E-S 2056.5 MHz - 2057.5 MHz - RHCP D   Selected data and information
LRIT S-E 1696 MHz - 1698 MHz - linear D   Selected data and information