@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/7b07ea0a-714f-4883-b202-898dfa0d4a69>
  ns0:altLabel [ ] ;
  skos:definition """FY-1 is China's meteorological satellite. Multichannel Visible
and IR Scan Radiometer (MVISR) is the major sensor of FY- 1. The
total number of channels of the sensor is increased from 5
channels in FY-1 A and B to 10 channels in FY-1 C and D. These
channels include 4 VIS channels, 3 near IR channels, 1 short
wave IR channel and 2 long wave IR channels.

The instantaneous field of view of the sensor is 1.2 microrad
and the resolution at subpoint is 1.1 Km. The scan rate of MVISR
is still 6 lines/second and total pixel of every scan line is
20480.

The High Resolution Picture Transmission of FY-1 C and D is
named CHRPT. It is considered that the system which receives and
processes HRPT/NOAA- Now data can receive and process CHRPT with
updating as few as possible.

The scan rate of MVISR is 6 lines/second. The words of every
channel are 2048 and the total words of 10 channels are
20480. Plus the sync and auxiliary information there are 22180
words every scan line and 10 bits every word. The bit rate is
1.3308 Mbps, just twice as many as the bit rate of
HRPT/NOAA-Now. The modulation of CHRPT data is PSK and bit
format is split phase. The transmission frequency of CHRPT will
be 1700.5MHz and the data format will be similar to the
HRPT/NOAA-Now data format. Therefore, it will to be easy to
process CHRPT data with HRPT/NOAA-Now data processing system.

Additional information available at
"http://nsmc.cma.gov.cn/fy1e.html"

[Summary provided by China's National Satellite Meteorological Center]


Group: Platform_Details
   Entry_ID: FY-1
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: FY (Feng-Yun)
      Short_Name: FY-1
      Long_Name: China's Meteorological Satellite-1
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: MVISR - Multichannel Visible and Infrared Scan Radiometer
      Short_Name: CHRPT - The High Resolution Picture Transmission of FY-1 C
   End_Group
   Group: Orbit
      Orbit_Altitude: 863 km
      Orbit_Inclination: 98.8 degrees
      Equator_Crossing: 8:53 AM
      Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous
   End_Group
   Online_Resource: http://nsmc.cma.gov.cn/item/fy_demo2.asp
   Group: Platform_Logistics
      Launch_Date: 1988-09-06
      Launch_Site: Taiyuan Space Launch Center, China
      Primary_Sponsor: China National Meteorology Center
   End_Group
End_Group"""@en ;
  skos:prefLabel "FY-1"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/edf02962-aafa-484f-84e5-2549f6db7552> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/edf02962-aafa-484f-84e5-2549f6db7552>
  skos:prefLabel "FY (Feng-Yun)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/7b07ea0a-714f-4883-b202-898dfa0d4a69> .