PDS_VERSION_ID = PDS3
DATA_SET_ID = {"GO-J-PWS-2-EDR-WAVEFORM-1KHZ-V1.0",
"GO-J-PWS-2-EDR-WAVEFORM-10KHZ-V1.0",
"GO-J-PWS-2-EDR-WAVEFORM-80KHZ-V1.0"}
PRODUCT_ID = "ROWPFX.TXT"
PRODUCT_TYPE = "DOCUMENT"
RECORD_TYPE = STREAM
OBJECT = TEXT
PUBLICATION_DATE = 1999-08-16
NOTE = "This file describes the structure of the header
that occurs before each data record in the PWS
waveform data files."
END_OBJECT = TEXT
END
Row Prefix Header Description
Byte Bits Type Name Description
------------------------------------------------------------------------------
0 0-15 LSB INT "REC NUM" Record number, 1 to 91
2 0-15 LSB INT "1st RIM" Spacecraft clock major frame counter of
the first data block in the current
record. One RIM is ~60 2/3 seconds.
The structure of the spacecraft clock
(SCLK) is RIM.MF.R.S, where MF is the
minor frame, R is the real time interrupt
(RTI = 0-9) and S is the sub-RTI (0-7).
4 0-15 LSB INT "1st MF" MOD91 = the minor frame of the current RIM
of the SCLK. Each MOD91 is ~2/3 second.
6 0-15 BYTE "1st RTI" MOD10 = Real time interrupt. There are
10 RTIs (0-9) in each minor frame.
8 0-15 BYTE "1st MOD8" MOD8 = sub-RTI There are 8 sub-RTIs (0-7)
in each RTI.
10 0-4 BIT "TEL FMT" Realtime identifier of format
identification (FID) in low rate science
(LRS) header. For asynchronous playback
(APB) data this field contains the record
identifier.
Values: LPW, MPW, MPP, HPW.
The telemetry format, coupled with the
instrument mode, determines the waveform
data record structure.
10 5-6 BIT "ANTENNA" Antenna switch position:
0 = E 1 = B 2 = UNKNOWN.
11 0-7 BYTE "INST MODE" Last known waveform receiver mode-
0 = waveform survey 1 = 100.8 kbps
2 = 806.4 kbps 3 = 12.6 kbps
The corresponding sampling rates are:
1 = 25,200/sec
2 = 201,600/sec
3 = 3,150/sec
12 0-7 BYTE "AGC" PWS automatic gain control (AGC) for the
data in this record. This field always
contains the last AGC received in low rate
science (LRS).
13 0 BIT "AGC VALID" Set to 1 if automatic gain control was
not present in this record or if the LRS
is unavailable.
14 0-79 BYTE "VALID DATA" These 10 bytes correspond to high-rate
data for each of possible 10 blocks of PWS
high-rate data in this row, with binary
1 bits indicating valid data. Each byte
item corresponds to one MOD10 count and
each bit within, to one MOD8. The first
byte corresponds to MOD10 = 0 and the
lowest order bit (0) to MOD8 = 0.
24 0-41 BYTE "FILLER" Reserved for future use.