/* FORMAT OF FILE NAME dddhhmm.yyw */ FILE NAME = 2172209.72w RECORD TYPE = VARIABLE_LENGTH PACECRAFT_NAME = SMALL_SCIENTIFIC_SATELLITE_1 ARTH_BASE_ID = ROS20 TART_EVENT_TIME = ( 217, 22, 9, 34, 0 ) ANDWIDTH = 10000 YTE_OFFSET = (0,26367,52736,79104,105472,131839,158205, 84571,210938,237301,263668,290035,316399,342764, 69130,395496,421862,448228,474596,500963,527329, 53693,580058,606425,632792,659159) AXIMUM_RECORD_BYTES = 265 ILE_RECORDS = 2600 TOP_EVENT_TIME = ( 217, 22, 9, 59, 990 ) ND MAXIMUM_RECORD_BYTES = 265 FILE_RECORDS = 2600 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 = (0,26367,52736,79104,105472,131839,158205, 184571,210938,237301,263668,290035,316399,342764, 369130,395496,421862,448228,474596,500963,527329, 553693,580058,606425,632792,659159) /* 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