ALOS Data Users Handbook

Section 3 Outline of ALOS Satellite System(4) Extraction Start Pixel Position DataExtraction Start Pixel Position: 2byteb15-b12CCD numberb11-b0Image Buffer Address of each CCD000’H to 99F’H(LSB = 1Word)Figure 3.4-10 AUX Data Format at Extraction Start Pixel PositionThe CCD no. and the start pixel position data level status are given by the extraction start pixel position data ofthe forward and backward views (see Table 3.4-7) and that of the nadir view (see Table 3.4-8).a) Forward/Backward ViewsTable 3.4-7 Extraction Start Pixel Position Data of Forward and Backward ViewsData added in AUX Data HK Telemetry Output DataCCDImage Buffer Address Absolute Pixel PositionCCD No.of each CCD [Word][Byte]1 0’H 000’H to 99F’H 1 to 49282 1’H 000’H to 99F’H 4929 to 98563 2’H 000’H to 99F’H 9857 to 147844 3’H 000’H to 99F’H 14785 to 197125 4’H 000’H to 99F’H 19713 to 246406 5’H 000’H to 99F’H 24641 to 295687 6’H 000’H to 99F’H 29569 to 344968 7’H 000’H to 99F’H 34497 to 39424Example: When the data added in the AUX data is [3758’H], the HK telemetry output dataare calculated as [14784 + 3760 + 1] based on [CCD4] and [758’H], to become [18545].3-38