@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/05d8035f-176b-451a-a52b-43d2cc6286bb>
  skos:changeNote """2019-02-11 15:55:51.0 [mmorahan]  
insert WeightedRelation (id: null
related concept uuid: 6a3c8a54-48ae-4357-8bbc-bd2c48ede3a7
relationship type: null
relationship value: null
generated by: null); 
""" ;
  skos:definition """SSTL has developed the BEIJING-1 microsatellite bus for the Beijing Landview Mapping Information Technology Ltd (BLMIT). The BEIJING-1 enhanced microsatellite is an Earth observation spacecraft that combines SSTLs standard Disaster Monitoring Constellation (DMC) multispectral camera with a high resolution panchromatic imager.

The customised microsatellite has specific enhancements to provide accommodation for the two imagers: a 32m multispectral imager currently flown on AlSAT-1, UK-DMC and NigeriaSat-1, plus a new 4m panchromatic imager developed under contract to SIRA Electro-Optics Ltd. The satellite bus provides highly agile attitude control to provide accurate pointing and the knowledge necessary for the mapping requirements of the mission.

BEIJING-1 is supported by SSTL S-band telemetry, telecommand and an 8Mbps data retrieval ground station and is further supported by a customer furnished X-band data retrieval ground station and reflector subsystem.

The Satellite was Launched on October 27th 2005 following a 24-month spacecraft development programme and is presently undergoing in orbit commissioning.


Group: Platform_Details
   Entry_ID: BEIJING-1
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Short_Name: BEIJING-1
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: Tsinghua-1
      Short_Name: China DMC+4
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: BJ-1 PAN
      Short_Name: BJ-1 MSI
   End_Group
   Group: Orbit
      Orbit_Altitude: 686 km
      Orbit_Inclination: 98.1 degrees
      Equator_Crossing: 10:15
      Period: 98.6 min
      Perigee: 683 km
      Apogee: 703 km
      Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous
   End_Group
   Creation_Date: 2008-06-02
   Online_Resource: http://eo.belspo.be/Directory/SatelliteDetail.aspx?satId=22
   Online_Resource: http://www.sstl.co.uk/Missions/Beijing-1--Launched-2005/Beijing-1/Beijing-1--The-Mission
   Group: Platform_Logistics
      Launch_Date: 2005-10-27
      Launch_Site: Plesetsk Cosmodrome, Russia
      Primary_Sponsor: China
      Primary_Sponsor: SSTL
   End_Group
End_Group"""@en ;
  skos:prefLabel "BEIJING-1"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/591c05ef-9b21-4c96-84b5-33f95cca3ab7> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/591c05ef-9b21-4c96-84b5-33f95cca3ab7>
  skos:prefLabel "DMC-1G (Disaster Monitoring Constellation- 1st Generation)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/05d8035f-176b-451a-a52b-43d2cc6286bb> .