/* FORMAT OF FILE NAME dddhhmm.yyw */ FILE NAME = 0250422.72w RECORD TYPE = VARIABLE_LENGTH PACECRAFT_NAME = SMALL_SCIENTIFIC_SATELLITE_1 ARTH_BASE_ID = ROS20 TART_EVENT_TIME = ( 25, 4, 22, 9, 0 ) ANDWIDTH = 10000 YTE_OFFSET = (0,26374,52776,79181,105590,131993,158401, 84804,211213,237617,264025,290429,316837,343242, 69648,396055,422461,448867,475273,501679,528086, 54492,580898,607305,633709,660116,686520,712928, 39331,765740,792143,818552,844956,871362,897768, 24173,950580,976985,1003390,1029797,1056202,1082607, 109014,1135418,1161825,1188228,1214636,1241038,1267446, 293848,1320256) AXIMUM_RECORD_BYTES = 265 ILE_RECORDS = 5100 TOP_EVENT_TIME = ( 25, 4, 22, 59, 990 ) ND MAXIMUM_RECORD_BYTES = 265 FILE_RECORDS = 5100 LABELS_RECORDS = 0 * BYTE_OFFSET is a list of byte offset to the data records that */ * begin at t = 0 sec ., 1 sec, 2 sec, ....of the time period */ BYTE_OFFSET = (0,26374,52776,79181,105590,131993,158401, 184804,211213,237617,264025,290429,316837,343242, 369648,396055,422461,448867,475273,501679,528086, 554492,580898,607305,633709,660116,686520,712928, 739331,765740,792143,818552,844956,871362,897768, 924173,950580,976985,1003390,1029797,1056202,1082607, 1109014,1135418,1161825,1188228,1214636,1241038,1267446, 1293848,1320256) /* Data set, time, and instrument information */ PACECRAFT_ID = EXPLORER 45 PACECRAFT_NAME = SMALL_SCIENTIFIC_SATELLITE /* Description of directory structure */ Each data directory contains two files. The first is the data file, see the directory "FORMAT" for format of the data files. The second file is a header file which indicates what is in the associated data record. The naming conventions for these records is: dddhhmm.yy(w or L) ddd is the day of the data. hh is the hour of the data. mm is the minute of the data. yy is the year of the data. w indicates that the record is a data record. L indicates that the record is a label record. /* description of file structure */ /* Data items are 8 bit unsigned bytes with values from 0 to 255 */ /* the units are values proportional to the output of the sensor */ /* with a zero of 127.5. */ /* The first 4 columns are 2 bytes values are in MSB byte LSB byte*/ /* order. */ OBJECT = TABLE NAME = UIOWA_ARCHIVED_WAVEFORM INTERCHANGE_FORMAT = BINARY COLUMNS = 5 ROWS = 6000 ROW_BYTES = VARIABLE DESCRIPTION = "University of Iowa single channel digitized waveform file. Each file (table) contains data occurring in an integral one minute interval, and each record (row) contains a 10 millisecond waveform series." OBJECT = COLUMN NAME = REMAINING_ROW_BYTES DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 1 BYTES = 2 DESCRIPTION = "Byte offset to beginning of next record (row)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = MILLISECOND_OF_MINUTE DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 3 BYTES = 2 DESCRIPTION = "Millisecond of minute corresponding to beginning of first sample in this record (row)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = FLAGS DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 5 BYTES = 2 DESCRIPTION = "Flag indicating interpreted or interpolated timecode (0 or 1)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = SAMPLES DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 7 BYTES = 2 DESCRIPTION = "Number of waveform samples in this record (row)" END_OBJECT = COLUMN OBJECT = COLUMN NAME = WAVEFORM_SERIES DATA_TYPE = MSB_UNSIGNED_INTEGER START_BYTE = 9 BYTES = 1 ITEMS = SAMPLES OFFSET = 127.5 DESCRIPTION = "Consecutive 8-bit unsigned waveform samples ranging from 0 to 255" END_OBJECT = COLUMN END_OBJECT = TABLE END