PDS_VERSION_ID = PDS3
RECORD_TYPE = STREAM
OBJECT = TEXT
PUBLICATION_DATE = 2002-10-04
NOTE = "This file describes the contents of this directory."
END_OBJECT = TEXT
END
This directory contains the 96 second res. electron and ion browse and fit
data from the Plasma instrument on Voyager 2 in the solar wind and Saturn's
magnetosphere during the Saturn encounter period of 1981-08-19 and 1981-09-04.
The data are stored in 7 ASCII tables, each accompanied by a PDS label
file (.LBL) which describes properties of the data file. The PLS cup
information is also provided in an ASCII file (PLS_CUP.TAB) along with its
PDS label file. The data file details are described as the following:
---------------------------------------------------------------------------
File Name Data Coverage File Contents
---------------------------------------------------------------------------
ELE_BR.TAB 1981-08-25 to 1981-08-27 electron browse
ELE_FIT.TAB 1981-08-25 to 1981-08-27 electron fit
ION_BR.TAB 1981-08-25 to 1981-08-26 ion browse
ION_FIT.TAB 1981-08-25 to 1981-08-26 ion fit
ION_MOM.TAB 1981-08-25 to 1981-08-26 ion moment
ION_WBR.TAB 1981-08-19 to 1981-09-04 ion solar wind browse
ION_WIND.TAB 1981-08-24 to 1981-08-25 ion solar wind
PLS_CUP.TAB 1981-08-25 to 1981-08-26 PLS cup information
Additional information on this data set is available in the following
files:
file contents
/CATALOG/PLSINST.CAT CRS instrument description
/CATALOG/VG2_PLSEBDS.CAT electron browse data set description
/CATALOG/VG2_PLSEFDS.CAT electron fit data set description
/CATALOG/VG2_PLSIBDS.CAT ion browse data set description
/CATALOG/VG2_PLSIFDS.CAT ion fit data set description
/CATALOG/VG2_PLSIMDS.CAT ion moment data set description
/CATALOG/VG2_PLSIWBDS.CAT ion solar wind browse data set description
/CATALOG/VG2_PLSIWDS.CAT ion solar wind data set description
/CATALOG/PERSON.CAT personnel information
/CATALOG/REF.CAT key reference description
/DOCUMENT/PLS/PLSDATA.ASC ASCII and HTML versions of the NSSDC's Data
and PLSDATA.HTM instrument description document for this
data set [NSSDCCRS1979]
/DOCUMENT/PLS/PLSINST.ASC ASCII and HTML versions of the CRS investigation
and PLSINST.HTM description paper [STONEETAL1977]
/-------------------------\
| ELE_BR DATA |
\-------------------------/
=============================================================================
name type description
-----------------------------------------------------------------------------
time A24 time in the format yyyy-mm-ddThh:mm:ss.sssZ
fit_den 1PE10.3 fit density of thermal electron component (cnts/cm**3)
fit_temp 1PE10.3 fit temperature of thermal electron component (eV)
mom_den 1PE10.3 moment density of suprathermal electrons (cnts/cm**3)
mom_temp 1PE10.3 moment temperature of suprathermal electrons (eV)
/-------------------------\
| ELE_FIT DATA |
\-------------------------/
===============================================================================
name type description
-------------------------------------------------------------------------------
time A24 time in the format yyyy-mm-ddThh:mm:ss.sssZ
imax I2 points in spectrum
ifly I1 flag value: 1 = encounter, 0 = cruise
thbn 1PE9.3 angle between d cup normal and mag. field vector (radians)
rne 1PE9.3 moment electron density (cnts/cm**3)
rte 1PE9.3 moment electron temperature (eV)
phisc 1PE9.3 spacecraft potential (V)
rnc 1PE9.3 cold electron density (cnts/cm**3)
sgnc 1PE9.3 std. dev. of cold electron density (rnc) (cnts/cm**3)
rtc 1PE9.3 cold electron temperature (eV)
sgtc 1PE9.3 std. dev. of cold electron temperature (rtc) (eV)
chic 1PE9.3 chi squared of the cold fit
rnh1 1PE9.3 first hot electron density (cnts/cm**3)
sgnh1 1PE9.3 std. dev. of first hot electron dens. (rnh1) (cnts/cm**3)
th1 1PE9.3 first hot electron temperature (eV)
sgth1 1PE9.3 std. dev. of first hot electron temp. (th1) (eV)
chih1 1PE9.3 chi squared of the first hot fit
rnh2 1PE9.3 second hot electron density (cnts/cm**3)
sgnh2 1PE9.3 std. dev. of second hot electron dens. (rnh2) (cnts/cm**3)
th2 1PE9.3 second hot electron temperature (eV)
sgth2 1PE9.3 std. dev. of second hot electron temp. (th2) (eV)
chih2 1PE9.3 chi squared of second hot fit
rnh3 1PE9.3 third hot electron density (cnts/cm**3)
sgnh3 1PE9.3 std. dev. of third hot electron dens. (rnh3) (cnts/cm**3)
th3 1PE9.3 third hot electron temperature (eV)
sgth3 1PE9.3 std. dev. of third hot electron temp. (th1) (eV)
chih3 1PE9.3 chi squared of third hot fit
chi 1PE9.3 chi squared for total fit
rnh 1PE9.3 moment of the hot electron density (cnts/cm**3)
rth 1PE9.3 moment of the hot electron temperature (eV)
/-------------------------\
| ION_BR DATA |
\-------------------------/
=========================================================================
name type description
-------------------------------------------------------------------------
time A24 Output from Time fitting
pro_den 1PE9.2 proton density (1/cm^-3)
pro_temp 1PE9.2 proton temperature <eV>
hion_den 1PE9.2 heavy ion density <cm^-3>
hiontemp 1PE9.2 heavy ion temperature <eV>
v_rho 1PE9.2 velocity Rho component <km/sec>
v_phi 1PE9.2 velocity Phi component <km/sec>
v_z 1PE9.2 velocity Z component <km/sec>
/-------------------------\
| ION_FIT DATA |
\-------------------------/
=============================================================================
name type description
-----------------------------------------------------------------------------
time A24 time in the format yyyy-mm-ddThh:mm:ss.sssZ
r 1PE11.4 spacecraft radial distance from planet (planetary radii)
rho 1PE11.4 spacecraft position angle rho (radians)
brho 1PE10.3 rho component of magnetic field (nT)
bphi 1PE10.3 phi component of magnetic field (nT)
bz 1PE10.3 z component of magnetic field (nT)
mode A2 intrument mode (L or M)
fdate A10 date the fit was performed (MMDDYY)
who A6 intitials of person performing fit (JDR = Dr. John
Richardson, MIT)
chi2 1PE10.3 chi squared for the fit
num_fit I3 number of ion species fit
ionspec1 I3 atomic number of first ion species for the fit
ionmass1 I3 mass of the first ion species for the fit (amu)
ionchrg1 I3 char of the first ion species for the fit
den1 1PE10.3 denisty of the first ion species for the fit (cnts/cm**3)
xden1 1PE10.3 1 sigma uncertainty for den1 (cnts/cm**3)
vrho1 1PE10.3 velocity vector rho component of 1st ion species (cm/sec)
xvrho1 1PE10.3 1 sigma uncertainty for vrho1 (cm/sec)
vphi1 1PE10.3 velocity vector phi component of 1st ion species (cm/sec)
xvphi1 1PE10.3 1 sigma uncertainty for vphi1 (cm/sec)
vz1 1PE10.3 velocity vector z component of 1st ion species (cm/sec)
xvz1 1PE10.3 1 sigma uncertainty for vz1 (cm/sec)
wpar1 1PE10.3 thermal speed in parallel direction (cm/sec)
xwpar1 1PE10.3 1 sigma uncertainty for wpar1 (cm/sec)
wper1 1PE10.3 thermal speed in perpendicular direction (cm/sec)
xwper1 1PE10.3 1 sigma uncertainty for wper1 (cm/sec)
ionspec2 I3 atomic number of second ion species for the fit
ionmass2 I3 mass of the second ion species for the fit (amu)
ionchrg2 I3 char of the second ion species for the fit
den2 1PE10.3 denisty of the second ion species for the fit (cnt/cm**3)
xden2 1PE10.3 1 sigma uncertainty for den2 (cnts/cm**3)
vrho2 1PE10.3 velocity vector rho component of 2nd ion species (cm/sec)
xvrho2 1PE10.3 1 sigma uncertainty for vrho2 (cm/sec)
vphi2 1PE10.3 velocity vector phi component of 2nd ion species (cm/sec)
xvphi2 1PE10.3 1 sigma uncertainty for vphi2 (cm/sec)
vz2 1PE10.3 velocity vector z component of 2nd ion species (cm/sec)
xvz2 1PE10.3 1 sigma uncertainty for vz2 (cm/sec)
wpar2 1PE10.3 thermal speed in parallel direction (cm/sec)
xwpar2 1PE10.3 1 sigma uncertainty for wpar2 (cm/sec)
wper2 1PE10.3 thermal speed in perpendicular direction (cm/sec)
xwper2 1PE10.3 1 sigma uncertainty for wper2 (cm/sec)
/-------------------------\
| ION_MOM DATA |
\-------------------------/
=======================================================================
name type description
-----------------------------------------------------------------------
time A24 time in the format yyyy-mm-ddThh:mm:ss.sssZ
ion_mden 1PE9.2 total ion moment (cnts/cm**3)
/-------------------------\
| ION_WBR DATA |
\-------------------------/
=======================================================================
name type description
-----------------------------------------------------------------------
time A24 time in the format yyyy-mm-ddThh:mm:ss.sssZ
den F7.4 Ion fit density <cm^-3>
Vr F6.1 Radial vel. comp. - RTN coords
Vt F6.1 Tangential vel comp - RTN coords
Vn F6.1 Normal vel. comp. - RTN coords
Vmag F6.1 Ion velocity vector magnitude
Wth F6.1 Thermal speed of the ions
temp F8.3 Ion temperature <eV>
/-------------------------\
| ION_WIND DATA |
\-------------------------/
===========================================================================
name type description
---------------------------------------------------------------------------
time A24 time in the format YYYY-MM-DDThh:mm:ss.sssZ
chi2 1PE11.5 chi-squared (indicates 'goodness' of the fit)
ionmass1 I2 ion mass of first ion species
ionchrg1 I2 ion charge of first ion species
den1 F7.4 density of first ion species
xden1 F7.4 1 sigma error in den1
Vr1 F9.4 radial velocity component of first ion species
xVr1 F9.4 1 sigma error in Vr1
Vt1 F9.4 tangential velocity component of first ion species
xVt1 F9.4 1 sigma error in Vt1
Vn1 F9.4 normal velocity component of first ion species
xVn1 F9.4 1 sigma error in Vn1
Wth1 F9.4 thermal speed of first ion species
xWth1 F9.4 1 sigma error in Wth1
ionmass2 I2 ion mass of second ion species
ionchrg2 I2 ion charge of second ion species
den2 F7.4 density of second ion species
xden2 F7.4 1 sigma error in den2
Vr2 F9.4 radial velocity component of second ion species
xVr2 F9.4 1 sigma error in Vr2
Vt2 F9.4 tangential velocity component of second ion species
xVt2 F9.4 1 sigma error in Vt2
Vn2 F9.4 normal velocity component of second ion species
xVn2 F9.4 1 sigma error in Vn2
Wth2 F9.4 thermal speed of second ion species
xWth2 F9.4 1 sigma error in Wth2
/-------------------------\
| PLS_CUP DATA |
\-------------------------/
=========================================================================
name type description
-------------------------------------------------------------------------
time A24 time in the format yyyy-mm-ddThh:mm:ss.sssZ
cup A1 vg2satplscup.cup
nchanset I1 vg2satplscup.nchanset
start_ch I2 vg2satplscup.start_ch
stop_ch I2 vg2satplscup.stop_ch