/* FORMAT OF FILE NAME dddhhmm.yyw */ FILE NAME = 2640955.84w RECORD TYPE = VARIABLE_LENGTH MAXIMUM_RECORD_BYTES = 266 FILE_RECORDS = 6000 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 = (0,26382,52765,79146,105529,131910,158289, 184668,211048,237426,263806,290186,316567,342950, 369331,395715,422098,448480,474862,501241,527622, 554001,580379,606759,633138,659518,685900,712282, 738664,765046,791427,817810,844193,870574,896953, 923332,949712,976091,1002469,1028850,1055230,1081612, 1107994,1134375,1160757,1187140,1213522,1239903,1266283, 1292662,1319042,1345420,1371799,1398178,1424557,1450938, 1477320,1503701,1530083,1556465) /* Data set, time, and instrument information */ SPACECRAFT_ID = AMPTE SPACECRAFT_NAME = ACTIVE_MAGNETOSPERIC_PARTIAL _TRACER_EXPLORER_ION_RELEASE__MODULE START_EVENT_TIME = 1984-264-09T55:00:000Z STOP_EVENT_TIME = 1984-264-09T55:59:990Z /* 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 hig byte low 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