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 CMANRSCC
Status Operational
Details on Status
(as available)
  • Relocated from 133E to 105E in Feb 2024
Launch 02 Jun 2021 EOL ≥2028
Last update: 2024-02-15
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

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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