Data Set Abstract |
THIS DATA SET CONTAINS THE ION PARAMETERS IN THE PLS VOLTAGE
RANGE (10-5950 EV/Q) WITH FORMAL 1 SIGMA ERRORS OBTAINED FROM
VOYAGER 1 DATA AT SATURN BY FITTING THE MEASURED SPECTRA WITH
ISOTROPIC MAXWELLIAN DISTRIBUTIONS TO OBTAIN PLASMA DENSITIES,
TEMPERATURES, AND VELOCITY. ONLY SPECTRA WHICH HAD DISTINCT
CURRENT PEAKS WERE FIT. SPECTRA WERE FIT USING ONE OR TWO ION
SPECIES, PROTONS AND/OR A HEAVY ION WHICH WAS TAKEN TO BE OXYGEN.
OUTSIDE L~10 ION SPECTRA CHANGE RAPIDLY, SO THE VALUES IN THIS
DATA SET DO NOT REPRESENT AVERAGE PLASMA CONDITIONS IN THE OUTER
MAGNETOSPHERE. THE VALUES FOR POSITION AND MAGNETIC FIELD GIVEN
IN THE DATA SET ARE ONLY APPROXIMATE AND SHOULD NOT BE USED FOR
PUBLICATION. PARAMETERS WHICH ARE IDENTICALLY 0 AND HAVE
UNCERTAINTIES OF 0 WERE NOT FIT DUE TO INSUFFICIENT DATA
DESCRIPTION OF THIS DATA SET IS GIVEN IN RICHARDSON (1986). DATA
FORMAT: EACH DATA RECORD CONSISTS OF 5+2N LINES, WHERE N IS THE
NUMBER OF IONS FIT. LINE 1: S (A1, INDICATES THE START OF A NEW
FIT) HRMIN(I5),SEC.MSEC(F7.3) RADIUS(F7.3),RHO(F7.3) MODE OF
FITTER(I4) THIS DATA SET, INDICATING PROGRAMS INCORPORATING THE
FULL RESPONSE FUNCTION OF THE INSTRUMENT FOR L MODES DATA):
CHI-SQUARE FROM FIT (E7.3) TELL WHICH CHANNELS WERE FIT: CUP
IDENTIFIER (A,B,C,D) (A1) NUMBER OF SETS OF CHANNELS FIT (I3)
CHANNEL OF EACH SET (2-20I3): LINE 6 F (LINE IDENTIFIER) (A1)
MASS, CHARGE (I3,I2) WHERE THE X* VARIABLES ARE FORMAL 1 SIGMA
UNCERTAINTIES: LINE 7 NUMBER (A1, I1) 6 AND 7 REPEAT ONCE FOR
EACH ION SPECIES. A CYLINDRICAL COORDINATE SYSTEM CENTERED ON THE
PLANET IS USED, WITH RHO OUTWARDS FROM THE SPIN AXIS, PHI IN THE
DIRECTION OF ROTATION, AND Z THE DISTANCE ABOVE THE EQUATOR.
V'S ARE VELOCITIES IN KM/S, W'S THERMAL SPEEDS IN KM/S,
AND DENSITIES IN CM-3. VALUES OF B AND POSITION INFORMATION MAY
BE UNRELIABLE AND SHOULD BE VERIFIED BEFORE USE. ADDITIONAL
INFORMATION ABOUT THIS DATASET AND THE INSTRUMENT WHICH PRODUCED
IT CAN BE FOUND ELSEWHERE IN THIS CATALOG. AN OVERVIEW OF THE
DATA IN THIS DATA SET CAN BE FOUND IN RICHARDSON (1986) AND A
COMPLETE INSTRUMENT DESCRIPTION CAN BE FOUND IN BRIDGE (1977). |