Short Name:
CER_BDS_Terra-FM1

CER_BDS_Terra-FM1_Edition4

The Edition4 CERES BiDirectional Scans (BDS) for Flight Model 1 (FM1) on the Terra spacecraft (CER_BDS_Terra-FM1_Edition4) data are CERES geolocated and calibrated TOA filtered radiances and other instrument data. Each Clouds and the Earth's Radiant Energy System (CERES) BiDirectional Scans (BDS) data product contains twenty-four hours of Level-1b data for a CERES scanner instrument mounted on a spacecraft. The BDS includes samples taken in normal and short Earth scan elevation profiles in both fixed and rotating azimuth scan modes (including space, internal calibration, and solar calibration views). The BDS contains Level-0 raw (unconverted) science and instrument data as well as the geolocated converted science and instrument data. The BDS contains additional data not found in the Level-0 input file, including converted satellite position and velocity data, celestial data, converted digital status data, and parameters used in the radiance count conversion equations. CERES is a key component of the Earth Observing System (EOS) program. The CERES instruments provide radiometric measurements of the Earth's atmosphere from three broadband channels. The CERES missions are a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission. The first CERES instrument (PFM) was launched on November 27, 1997 as part of the Tropical Rainfall Measuring Mission (TRMM). Two CERES instruments (FM1 and FM2) were launched into polar orbit on board the EOS flagship Terra on December 18, 1999. Two additional CERES instruments (FM3 and FM4) were launched on board EOS Aqua on May 4, 2002. The newest CERES instrument (FM5) was launched on board the Suomi National Polar-orbiting Partnership (NPP) satellite on October 28, 2011.

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