ISEE3 data files
Each file contains the data for one day.
The files are in Ascii, formatted as comma separated values.
Each line contains one record.
Lines are terminated by a line-feed character.
File names include the date formatted as YYYYMMDD
where YYYY is the month, MM is the month number,
and DD is the day-of-month number.
All files are compressed using gzip and hence
have a suffix of ".gz".
108 sec files - name: iaYYYYMMDD.txt.gz
Column Type Contents
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1 I Record number.
2 I Data date as YYDOY where YY is last two digits of year
and DOY is day-of-year (Jan 1 = 1).
3 I Date time of day in milliseconds.
4 I Instrument mode.
5-7 I XYZ coordinates of spacecraft in geocentric solar ecliptic
coordinates (meters).
8 I Z dipole configuration.
9-20 F For each frequency channel:
for modes 1 and 2: the SB average,
for mode 3: the SN average.
21-32 F For each frequency channel:
for mode 1: SN average,
for other modes: 0
33-44 F For each frequency channel:
For modes 1 and 2, the SB RMS value,
For mode 3, the SN RMS value.
45-56 F For each frequency channel:
For mode 1, the SN RMS value,
For other modes: 0.
57-68 F For each frequency channel:
for modes 1 and 2: the ZB average,
for mode 3: the ZN average.
69-80 F For each frequency channel:
for mode 1: ZN average,
for other modes: 0
81-92 F For each frequency channel:
For modes 1 and 2, the ZB RMS value,
For mode 3, the ZN RMS value.
93-104 F For each frequency channel:
For mode 1, the ZN RMS value,
For other modes: 0.
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1.5 sec modulated data files - name: imYYYYMMDD.txt.gz
Column Type Contents
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1 I Record number.
2 I Data date as YYDOY where YY is last two digits of year
and DOY is day-of-year (Jan 1 = 1).
3 I Date time of day in milliseconds.
4 I Frequency channel (1-12) of this record.
5 I Step number (1-72).
6 I Status.
7 I First phase.
8 I Second phase.
9 I Number of non-fill S samples.
10 I Record quality.
11 I Instrument mode.
12 I Always 0.
13-20 I Status words.
21-44 F Calibrated S and Z samples as log TA.
Contents depend on mode and bitrate.
45 F Modes 1 & 2: SB average, mode 3: SN average.
46 F Mode 1: SN average, other modes: 0.
47 F Modes 1 & 2: SN RMS value, mode 3: SN RMS value.
48 F Mode 1: SN RMS value, other modes: 0.
49 F Spin period in msec.
50 F Dipole aziumth at msec, angle between Sun and
S-dipole normal in radians.
51-53 F Location of spacecraft [X,Y,Z] in geosolar ecliptic
coordinates (meters).
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1.5 sec demodulated data files - name: idYYYYMMDD.txt.gz
Column Type Contents
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1 I Record number.
2 I Data date as YYDOY where YY is last two digits of year
and DOY is day-of-year (Jan 1 = 1).
3 I Data time of day in milliseconds.
4 I Frequency channel (1-12) of this record.
5 I Number of S samples in fit.
6 I Quality of analysis for B.
7 I Quality of analysis for N.
8 I Instrument mode.
9 F Modes 1 & 2: despun SB amplitude, mode 3: despun SN amplitude
10 F Despun SN amplitude if mode 1.
11 F Log of SB as log TA.
12 F If mode 1: log SN, otherwise 0.
13 F Modes 1 & 2: modulation index for B,
mode 3: modulation index for N.
14 F Mode 1: modulation index of N, otherwise 0.
15 F Source longitude (degrees, increasing to west of sun) for B.
16 F Source longitude (degrees, increasing to west of sun) for N.
17 F Modes 1 & 2: despun ZB amplitude,
mode 3: despun ZN amplitude
18 F Despun ZN amplitude if mode 1.
19 F Log of ZB as log TA.
20 F If mode 1: log ZN, otherwise 0.
21 F Phase (volts) for first input record used in
group for B (modes 1 & 2) or N (mode 3).
22 F Phase (volts) for first input record used in
group for B (mode 2) or N (modes 1 & 3).
23 F Sun angle in radians for B.
24 F Sun angle in radians for N.
25 F Calculated elevation angle for B.
26 F Calculated elevation angle for N.
27 F Calculated source radius in degrees for B.
28 F Calculated source radius in degrees for N.
29 F Background value used for SB in calculating elevation and radius.
30 F Background value used for SN (mode 1).
31 F Background value used for ZB.
32 F Background value used for ZN (mode 1).
33 F Fractional standard deviation of least squares fit for B.
34 F Fractional standard deviation of least squares fit for N.
35 F Uncertainity in least squares fit for mean amplitude for SB.
36 F Uncertainity in least squares fit for modulation index (degrees) for B.
37 F Uncertainity in least squares fit for source longitude for B.
38 F Uncertainity in least squares fit for mean amplitude for SN.
39 F Uncertainity in least squares fit for modulation index (degrees) for N.
40 F Uncertainity in least squares fit for source longitude for N.
41 F Spin period in msec.
42-44 F XYZ coordinates of spacecraft in geocentric solar
ecliptic coordinaes (meters).
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