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nasa20/100

Voyager 1 Low-Energy Charged Particle (LECP) Background-Corrected Electron Differential Fluxes, Daily Data in CDF Format

This data set contains data from the LECP instrument on the Voyager 1 spacecraft. Each record in a file contains 1-day (24-hour) scan-averaged fluxes and flux uncertainties of electrons in two contiguous energy channels that cover the energy range 26-70 keV. The period 2002/001 through 2012/240 includes electrons measured upstream of the termination shock and in the heliosheath up though ~2 days after the heliopause crossing. The Voyager 1 LECP instrument steps through eight, 45 deg full-angle sectors, spending 192 sec in each sector, yielding a full scan through 360 deg every 25.6 min. The LECP scan plane is nearly parallel to RT-plane of the heliospheric RTN coordinate system. The electron data are averaged over the seven active sectors S1-S7; S8 is behind the sun-shield and not included in the average.-- Electron channels designated EB01 and EB02-- Data have been corrected to remove background due to penetrating cosmic ray ions-- Electron fluxes and uncertainties (one st. dev.) in units: (cm^2 s sr MeV)^-1-- Data are 5-point running averages of daily values-- Values -9.900e+01 used for missing or nonphysical data-- Negative year indicates filled data for the associated doy

restrictednotspecifiedApr 2025View details →
nasa20/100

VOYAGER 2 JUPITER MAGNETOMETER RESAMPLED DATA 9.60 SEC

This data set includes Voyager 2 Jupiter encounter magnetometer data that have been resampled at a 9.6 second sample rate. The data set is composed of 6 columns: 1) ctime - this column contains the data acquisition time. The time is always output in the ISO standard spacecraft event time format (yyyy-mm-dd-Thh:mm:ss.sss) but is stored internally in Cline time which is measured in seconds after 00:00:00.000 Jan 01, 1966, 2) br - this column contains the radial component of the magnetic field, 3) bphi - this column contains the phi component of the magnetic field, 4) btheta - this column contains the theta component of the magnetic field, 5) bmag - this column contains the magnitude of the magnetic field, 6) flag - a flag value that indicates either software error or spacecraft hardware interference reduced confidence in this record (flag value of 1 is bad , 0 is good or unchecked). All magnetic field observations are measured in nanoTeslas. The coordinate system for this dataset is Minus System III. All of the magnetic field data are calibrated (see the instrument calibration description for more details). The Jupiter System III coordinate system is defined in Dessler 1983 and the reference documents for this dataset are: Ness et al, 1979A Lepping et al, 1981 Connerney,Acuna,Ness, 1981 Behannon,Burlaga,Ness, 1981

restrictedus-pdMar 2025View details →
nasa20/100

VOYAGER 1 SATURN PLASMA DERIVED ION FITS BROWSE 96 SEC

THIS DATA SET CONTAINS THE ION DENSITIES, TEMPERATURES, AND VELOCITIES OBTAINED FROM VOYAGER 1 PLS DATA (VOLTAGE RANGE 10-5950 EV/Q) AT SATURN BY FITTING THE MEASURED SPECTRA WITH ISOTROPIC MAXWELLIAN DISTRIBUTIONS. IT IS A SUBSET OF THE DATA SET VG1-S-PLS-5-ION-FIT-96.0SEC WHICH SHOULD BE OBTAINED BEFORE THIS DATA IS USED. 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=10-12 ION SPECTRA CHANGE RAPIDLY, SO THE VALUES IN THIS DATA SET DO NOT REPRESENT AVERAGE PLASMA CONDITIONS IN THE OUTER MAGNETOSPHERE. A COMPLETE DESCRIPTION OF THIS DATA SET IS GIVEN IN RICHARDSON (1986). DATA FORMAT: FIRST 5 COLUMNS ARE TIME TAG (YEAR, DAY, HOUR, MIN SEC.MSEC), FOLLOWED BY PROTON DENSITY (CM-3), PROTON TEMPERATURE (EV), HEAVY ION DENSITY (CM-3), HEAVY ION TEMPERATURE (EV), AND THREE VELOCITY COMPONENTS, (RHO, PHI,Z) IN KM/S. 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. EACH ROW HAS THE FORMAT (2I4,2I3,F7.3,7E11.3). VALUES OF 1.E32 INDICATE THAT THE PARAMETER COULD NOT BE OBTAINED FROM THE DATA USING THE STANDARD ANALYSIS TECHNIQUE. 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).

restrictedus-pdMar 2025View details →
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VOYAGER 1 JUP LOW ENERGY CHARGED PARTICLE CALIB. BR 15MIN

THIS BROWSE DATA CONSISTS OF RESAMPLED DATA FROM THE LOW ENERGY CHARGED PARTICLE (LECP) EXPERIMENT ON VOYAGER 1 WHILE THE SPACECRAFT WAS IN THE VICINITY OF JUPITER. THIS INSTRUMENT MEASURES THE INTENSITIES OF IN-SITU CHARGED PARTICLES (>26 KEV ELECTRONS AND >30 KEV IONS) WITH VARIOUS LEVELS OF DISCRIMINATION BASED ON ENERGY, MASS SPECIES, AND ANGULAR ARRIVAL DIRECTION. A SUBSET OF ALMOST 100 LECP CHANNELS ARE INCLUDED WITH THIS DATA SET. THE LECP DATA ARE GLOBALLY CALIBRATED TO THE EXTENT POSSIBLE (SEE BELOW) AND THEY ARE TIME AVERAGED TO ABOUT 15 MINUTE TIME INTERVALS WITH THE EXACT BEGINNING AND ENDING TIMES FOR THOSE INTERVALS MATCHING THE LECP INSTRUMENTAL CYCLE PERIODS (THE ANGULAR SCANNING PERIODS). THE LECP INSTUMENT HAS A ROTATING HEAD FOR OBTAINING ANGULAR ANISOTROPY MEASUREMENTS OF THE MEDIUM ENERGY CHARGED PARTICLES THAT IT MEASURES. THE CYCLE TIME FOR THE ROTATION IF VARIABLE, BUT DURING ENCOUNTERS IT IS ALWAYS FASTER THAN 15 MINUTES. FOR THIS BROWSE DATA SET ONLY SCAN AVERAGE DATA IS GIVEN (NO ANGULAR INFORMATION). THE DATA IS IN THE FORM OF 'RATE' DATA WHICH HAS NOT BEEN CONVERTED TO THE USUAL PHYSICAL UNITS. THE REASON IS THAT SUCH A CONVERSION WOULD DEPEND ON UNCERTAIN DETERMINATIONS SUCH AS THE MASS SPECIES OF THE PARTICLES AND THE LEVEL OF BACKGROUND. BOTH MASS SPECIES AND BACKGROUND ARE GENERALLY DETERMINED FROM CONTEXT DURING THE STUDY OF PARTICULAR REGIONS. TO CONVERT 'RATE' TO 'INTENSITY' FOR A PARTICULAR CHANNEL ONE PERFORMS THE FOLLOWING TASKS: 1) DECIDE ON THE LEVEL OF BACKGROUND CONTAMINATION AND SUBTRACT THAT OFF THE GIVEN RATE LEVEL. BACKGROUND IS TO BE DETERMINED FROM CONTEXT AND FROM MAKING USE OF SECTOR 8 RATES (SECTOR 8 HAS A 2 mm AL SHIELD COVERING IT). 2) DIVIDE THE BACKGROUND CORRECTED RATE BY THE CHANNEL GEOMETRIC FACTOR AND BY THE ENERGY BANDPASS OF THE CHANNEL. THE GEOMETRIC FACTOR IS FOUND IN ENTRY 'channel_geometric_ factor' AS ASSOCIATED WITH EACH CHANNEL 'channel_id'. TO DETERMINE THE ENERGY BANDPASS, ONE MUST JUDGE THE MASS SPECIES OF THE OF THE DETECTED PARTICLES (FOR IONS BUT NOT FOR ELECTRONS). THE ENERGY BAND PASSES ARE GIVEN IN ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPENERGY', AND ARE GIVEN IN THE FORM 'ENERGY/NUCLEON'. FOR CHANNELS THAT BEGIN THEIR NAMES WITH THE DESIGNATIONS 'CH' THESE BANDPASSES CAN BE USED ON MASS SPECIES THAT ARE ACCEPTED INTO THAT CHANNEL (SEE ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPCHANZ', WHICH GIVE THE MINIMUM AND MAXIMUM 'Z' VALUE ACCEPTED -- THESE ENTRIES ARE BLANK FOR ELECTRON CHANNELS). FOR OTHER CHANNELS THE GIVEN BANDPASS REFERS ONLY TO THE LOWEST 'Z' VALUE ACCEPTED. THE BANDPASSES FOR OTHER 'Z' VALUES ARE NOT ALL KNOWN, BUT SOME ARE GIVEN IN THE LITERATURE (E.G. KRIMIGIS ET AL., 1979). THE FINAL PRODUCT OF THESE INSTRUCTIONS WILL BE THE PARTICLE INTENSITY WITH THE UNITS: COUNTS/(CM**2.STR.SEC.KEV). SOME CHANNELS ARE SUBJECT TO SERIOUS CONTAMINATIONS, AND MANY OF THESE CONTAMINATIONS CANNOT BE REMOVED EXCEPT WITH A REGION-BY-REGION ANALYSIS, WHICH HAS NOT BEEN DONE FOR THIS DATA. THUS, TO USE THIS DATA IT IS ABSOLUTELY VITAL THAT THE CONTAMINATION TYPES ('contamination_id' , 'contamination_desc') AND THE LEVELS OF CONTAMINATION ('data_quality_id' CORRESPONDING TO THE DEFINITIONS 'data_quality_desc') BE CAREFULLY EXAMINED FOR ALL REGIONS OF STUDY. A DEAD TIME CORRECTION PROCEDURE HAS BEEN APPLIED IN AN ATTEMPT TO CORRECT THE LINEAR EFFECTS OF DETECTOR OVERDRIVE (PULSE-PILEUP). THIS PROCEDURE DOES NOT FIX SEVERELY OVERDRIVEN DETECTORS. A PROCEDURE IS AVAILABLE FOR CORRECTING VOYAGER 2 LECP ELECTRON CONTAMINATION OF LOW ENERGY ION CHANNELS, BUT ITS EFFECTIVENESS HAS BEEN EVALUATED ONLY FOR THE URANUS DATA SET. THUS, CORRECTIONS HAVE BEEN APPLIED ONLY TO THE URANUS DATA SET.

restrictedus-pdMar 2025View details →
nasa20/100

VOYAGER 1 SATURN PLASMA DERIVED ELECTRON BROWSE 96 SEC

THIS DATA SET CONTAINS THE THERMAL ELECTRON DENSITY AND TEMPERATURE IN THE PLS ENERGY RANGE (10-5950 EV) FROM VOYAGER 1 AT SATURN DERIVED BY FITTING THE LOW ENERGY ELECTRON COMPONENT WITH A MAXWELLIAN DISTRIBUTION, AND THE MOMENT DENSITY AND TEMPERATURE OF THE HOT ELECTRONS CALCULATED AFTER THE SIGNAL FROM THE THERMAL COMPONENT IS SUBTRACTED FROM THE ELECTRON SPECTRA. IT IS A SUBSET OF THE DATA SET VG1-S-PLS-5-ELE-FIT-96.0SEC WHICH SHOULD BE OBTAINED BEFORE THIS DATA IS USED. SPACECRAFT CHARGING MAY RESULT IN FACTOR OF 2-3 ERRORS IN THE THERMAL ELECTRON DENSITY. THE FIRST SIX COLUMNS ARE THE TIME TAG (YEAR, DAY, HOUR, MIN, SEC, MSEC), COLUMN 7 AND 8 ARE THE FIT DENSITY AND TEMPERATURE OF THE THERMAL ELECTRON COMPONENT, AND 9 AND 10 ARE THE MOMENT DENSITY AND TEMPERATURE OF THE SUPRATHERMAL ELECTRONS. EACH ROW HAS THE FORMAT (6I5,4E12.4). VALUES OF 1.E32 INDICATE THAT THE PARAMETER COULD NOT BE OBTAINED FROM THE DATA USING THE STANDARD ANALYSIS TECHNIQUE. 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 SITTLER ET AL. (1983) AND A COMPLETE INSTRUMENT DESCRIPTION CAN BE FOUND IN BRIDGE (1977).

restrictedus-pdMar 2025View details →
nasa20/100

VOYAGER 2 SATURN PLASMA DERIVED ION MOMENTS 96 SEC

THIS DATA SET CONTAINS ESTIMATES OF THE ION MOMENT DENSITY IN THE PLS VOLTAGE RANGE (10-5950 EV/Q) AT SATURN DURING THE VOYAGER 2 ENCOUNTER. RIGID COROTATION IS ASSUMED, WHICH LEADS TO AN UNDERESTIMATE OF THE DENSITY IN SOME REGIONS, AS DOES THE USE OF AN ACCEPTANCE AREA RELEVANT FOR A COLD BEAM FOR PLASMA WHICH IS TRANSONIC IS SOME REGIONS. DENSITIES MAY BE UNDERESTIMATED BY A FACTOR OF 2-3 IN THE INNER MAGNETOSPHERE, SO THIS DATA SET SHOULD BE USED PRIMARILY FOR STUDIES USING VARIATIONS IN PLASMA DENSITY. THE FIT DENSITIES GIVE A BETTER ESTIMATE OF THE ABSOLUTE DENSITY. THIS IS THE DATA SHOWN AND DESCRIBED IN DETAIL IN LAZARUS AND MCNUTT (1983). DATA FORMAT: COLUMNS 1-5 ARE TIME (YEAR, DAY, HOUR, MIN, SEC) AND COLUMN 6 IS THE MOMENT DENSITY IN CM-3. EACH ROW HAS FORMAT (I5,I4,2I3,I4,F8.3). 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 LAZARUS AND MCNUTT (1983) AND A COMPLETE INSTRUMENT DESCRIPTION CAN BE FOUND IN BRIDGE (1977).

restrictedus-pdMar 2025View details →
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VOYAGER 2 SATURN PLASMA DERIVED ELECTRON PARAMETERS 96 SEC

THIS DATA SET CONTAINS ELECTRON PARAMETERS IN THE PLS ENERGY RANGE (10-5950 EV) AT SATURN DURING THE VOYAGER 2 ENCOUNTER. PARAMETERS ARE CALCULATED IN SEVERAL WAYS. TOTAL MOMENT DENSITY AND TEMPERATURE ARE GIVEN. EACH ELECTRON SPECTRUM IS ALSO FIT WITH A THERMAL COMPONENT AND 1-3 HOT COMPONENTS DEPENDING ON HOW MANY MAXWELLIANS ARE NEEDED TO FIT THE ENTIRE DISTRIBUTION. THE MOMENT DENSITY AND TEMPERATURE OF THE HOT COMPONENT IS CALCULATED AFTER THE THERMAL COMPONENT IS SUBTRACTED FROM THE SPECTRUM. THE CHI-SQUARE VALUE FOR EACH FIT IS GIVEN. THE SPACECRAFT CHARGE IS NOT CALCULATED CONSISTENTLY, AND MAY RESULT IN FACTOR OF 2-3 ERRORS IN THE THERMAL ELECTRON DENSITY. DATA IS UNRELIABLE INSIDE 6 RS AND IN THE OCCULTATION REGIONS. A COMPLETE DESCRIPTION OF THIS DATA SET IS IN SITTLER ET AL. (1983). DATA FORMAT: THE DATA SET IS IN ASC FORMAT AND CAN BE READ USING THE FOLLOWING FORTRAN STATEMENT:\n

restrictedus-pdMar 2025View details →
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VOYAGER 2 SATURN MAGNETOMETER RESAMPLED DATA 48.0 SEC

This data set includes Voyager 2 Saturn encounter magnetometer data that have been resampled at a 48.0 second sample rate. The data set is composed of 6 columns: 1) ctime - this column contains the data acquisition time. The time is always output in the ISO standard spacecraft event time format (yyyy-mm-dd-Thh:mm:ss.sss) but is stored internally in Cline time which is measured in seconds after 00:00:00.000 Jan 01, 1966, 2) br - this column contains the radial component of the magnetic field, 3) bphi - this column contains the phi component of the magnetic field, 4) btheta - this column contains the theta component of the magnetic field, 5) bmag - this column contains the magnitude of the magnetic field, 6) flag - a flag value that indicates either software error or spacecraft hardware interference reduced confidence in this record (flag value of 1 is bad , 0 is good or unchecked). All magnetic field observations are measured in nanoTeslas. The coordinate system for this dataset is Minus Saturn Longitude System (-SLS). All of the magnetic field data are calibrated (see the instrument calibration description for more details). The SLS coordinate system is defined in Desch and Kaiser, 1981 and the reference documents for this dataset are: Ness et al, 1982 Acuna,Connerney,and Ness, 1983 Connerney,Acuna,and Ness, 1983 Behannon,Lepping,and Ness, 1983

restrictedus-pdMar 2025View details →
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VOYAGER 1&2 SATURN BRIGHTNESS NORTH/SOUTH MAP SET V1.0

This data set contains Voyager 1 and 2 measurements of the brightness of Saturn at H Lyman alpha and in the H2 Lyman and Werner bands shortward of H Lyman alpha. Pointing has been corrected by the C-Smithing process, and these data were derived from the pre-encounter North-South Map sequences. In this sequence, the UVS field of view was located near the central meridian of the planet. The field of view stepped slowly from north to south, and then rapidly repositioned to the north. These scans were repeated until all longitudes had been sampled. Coverage in longitude was nearly continuous in time. There were short breaks for observations of satellites.

restrictedus-pdMar 2025View details →
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VOYAGER 2 JUP LOW ENERGY CHARGED PARTICLE CALIB. BR 15MIN

THIS BROWSE DATA CONSISTS OF RESAMPLED DATA FROM THE LOW ENERGY CHARGED PARTICLE (LECP) EXPERIMENT ON VOYAGER 2 WHILE THE SPACECRAFT WAS IN THE VICINITY OF JUPITER. THIS INSTRUMENT MEASURES THE INTENSITIES OF IN-SITU CHARGED PARTICLES (>26 KEV ELECTRONS AND >30 KEV IONS) WITH VARIOUS LEVELS OF DISCRIMINATION BASED ON ENERGY, MASS SPECIES, AND ANGULAR ARRIVAL DIRECTION. A SUBSET OF ALMOST 100 LECP CHANNELS ARE INCLUDED WITH THIS DATA SET. THE LECP DATA ARE GLOBALLY CALIBRATED TO THE EXTENT POSSIBLE (SEE BELOW) AND THEY ARE TIME AVERAGED TO ABOUT 15 MINUTE TIME INTERVALS WITH THE EXACT BEGINNING AND ENDING TIMES FOR THOSE INTERVALS MATCHING THE LECP INSTRUMENTAL CYCLE PERIODS (THE ANGULAR SCANNING PERIODS). THE LECP INSTUMENT HAS A ROTATING HEAD FOR OBTAINING ANGULAR ANISOTROPY MEASUREMENTS OF THE MEDIUM ENERGY CHARGED PARTICLES THAT IT MEASURES. THE CYCLE TIME FOR THE ROTATION IF VARIABLE, BUT DURING ENCOUNTERS IT IS ALWAYS FASTER THAN 15 MINUTES. FOR THIS BROWSE DATA SET ONLY SCAN AVERAGE DATA IS GIVEN (NO ANGULAR INFORMATION). THE DATA IS IN THE FORM OF 'RATE' DATA WHICH HAS NOT BEEN CONVERTED TO THE USUAL PHYSICAL UNITS. THE REASON IS THAT SUCH A CONVERSION WOULD DEPEND ON UNCERTAIN DETERMINATIONS SUCH AS THE MASS SPECIES OF THE PARTICLES AND THE LEVEL OF BACKGROUND. BOTH MASS SPECIES AND BACKGROUND ARE GENERALLY DETERMINED FROM CONTEXT DURING THE STUDY OF PARTICULAR REGIONS. TO CONVERT 'RATE' TO 'INTENSITY' FOR A PARTICULAR CHANNEL ONE PERFORMS THE FOLLOWING TASKS: 1) DECIDE ON THE LEVEL OF BACKGROUND CONTAMINATION AND SUBTRACT THAT OFF THE GIVEN RATE LEVEL. BACKGROUND IS TO BE DETERMINED FROM CONTEXT AND FROM MAKING USE OF SECTOR 8 RATES (SECTOR 8 HAS A 2 mm AL SHIELD COVERING IT). 2) DIVIDE THE BACKGROUND CORRECTED RATE BY THE CHANNEL GEOMETRIC FACTOR AND BY THE ENERGY BANDPASS OF THE CHANNEL. THE GEOMETRIC FACTOR IS FOUND IN ENTRY 'channel_geometric_ factor' AS ASSOCIATED WITH EACH CHANNEL 'channel_id'. TO DETERMINE THE ENERGY BANDPASS, ONE MUST JUDGE THE MASS SPECIES OF THE OF THE DETECTED PARTICLES (FOR IONS BUT NOT FOR ELECTRONS). THE ENERGY BAND PASSES ARE GIVEN IN ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPENERGY', AND ARE GIVEN IN THE FORM 'ENERGY/NUCLEON'. FOR CHANNELS THAT BEGIN THEIR NAMES WITH THE DESIGNATIONS 'CH' THESE BANDPASSES CAN BE USED ON MASS SPECIES THAT ARE ACCEPTED INTO THAT CHANNEL (SEE ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPCHANZ', WHICH GIVE THE MINIMUM AND MAXIMUM 'Z' VALUE ACCEPTED -- THESE ENTRIES ARE BLANK FOR ELECTRON CHANNELS). FOR OTHER CHANNELS THE GIVEN BANDPASS REFERS ONLY TO THE LOWEST 'Z' VALUE ACCEPTED. THE BANDPASSES FOR OTHER 'Z' VALUES ARE NOT ALL KNOWN, BUT SOME ARE GIVEN IN THE LITERATURE (E.G. KRIMIGIS ET AL., 1979). THE FINAL PRODUCT OF THESE INSTRUCTIONS WILL BE THE PARTICLE INTENSITY WITH THE UNITS: COUNTS/(CM**2.STR.SEC.KEV). SOME CHANNELS ARE SUBJECT TO SERIOUS CONTAMINATIONS, AND MANY OF THESE CONTAMINATIONS CANNOT BE REMOVED EXCEPT WITH A REGION-BY-REGION ANALYSIS, WHICH HAS NOT BEEN DONE FOR THIS DATA. THUS, TO USE THIS DATA IT IS ABSOLUTELY VITAL THAT THE CONTAMINATION TYPES ('contamination_id' , 'contamination_desc') AND THE LEVELS OF CONTAMINATION ('data_quality_id' CORRESPONDING TO THE DEFINITIONS 'data_quality_desc') BE CAREFULLY EXAMINED FOR ALL REGIONS OF STUDY. A DEAD TIME CORRECTION PROCEDURE HAS BEEN APPLIED IN AN ATTEMPT TO CORRECT THE LINEAR EFFECTS OF DETECTOR OVERDRIVE (PULSE-PILEUP). THIS PROCEDURE DOES NOT FIX SEVERELY OVERDRIVEN DETECTORS. A PROCEDURE IS AVAILABLE FOR CORRECTING VOYAGER 2 LECP ELECTRON CONTAMINATION OF LOW ENERGY ION CHANNELS, BUT ITS EFFECTIVENESS HAS BEEN EVALUATED ONLY FOR THE URANUS DATA SET. THUS, CORRECTIONS U HAVE BEEN APPLIED ONLY TO THE URANUS DATA SET.

restrictedus-pdApr 2025View details →
nasa20/100

VOYAGER 1 SATURN PLASMA DERIVED ION FITS 96 SEC

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).

restrictedus-pdMar 2025View details →
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VOYAGER 1 JUP PLASMA WAVE SPECTROMETER RESAMP SPEC 48.0SEC

This data set consists of 48-second calibrated, averaged wave electric field intensities from the Voyager 1 Plasma Wave Receiver spectrum analyzer obtained in the vicinity of the Jovian magnetosphere. For each 48-second interval, a geometric average field strength is determined for each of the 16 spectrum analyzer channels whose center frequencies range from 10 Hertz to 56.2 kiloHertz and which are logarithmically spaced in frequency, four channels per decade. Averages are stored in units of volt/meter. During data gaps where complete 48-second intervals are missing, no entries exist in the file, that is, the gaps are not zero-filled or tagged in any other way. 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 Scarf et al. [1979] and a complete instrument description can be found in Scarf and Gurnett [1977].

restrictedus-pdMar 2025View details →
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VOYAGER 1 SAT LOW ENERGY CHARGED PARTICLE CALIB. BR 15MIN

THIS BROWSE DATA CONSISTS OF RESAMPLED DATA FROM THE LOW ENERGY CHARGED PARTICLE (LECP) EXPERIMENT ON VOYAGER 1 WHILE THE SPACECRAFT WAS IN THE VICINITY OF SATURN. THIS INSTRUMENT MEASURES THE INTENSITIES OF IN-SITU CHARGED PARTICLES (>26 KEV ELECTRONS AND >30 KEV IONS) WITH VARIOUS LEVELS OF DISCRIMINATION BASED ON ENERGY, MASS SPECIES, AND ANGULAR ARRIVAL DIRECTION. A SUBSET OF ALMOST 100 LECP CHANNELS ARE INCLUDED WITH THIS DATA SET. THE LECP DATA ARE GLOBALLY CALIBRATED TO THE EXTENT POSSIBLE (SEE BELOW) AND THEY ARE TIME AVERAGED TO ABOUT 15 MINUTE TIME INTERVALS WITH THE EXACT BEGINNING AND ENDING TIMES FOR THOSE INTERVALS MATCHING THE LECP INSTRUMENTAL CYCLE PERIODS (THE ANGULAR SCANNING PERIODS). THE LECP INSTUMENT HAS A ROTATING HEAD FOR OBTAINING ANGULAR ANISOTROPY MEASUREMENTS OF THE MEDIUM ENERGY CHARGED PARTICLES THAT IT MEASURES. THE CYCLE TIME FOR THE ROTATION IF VARIABLE, BUT DURING ENCOUNTERS IT IS ALWAYS FASTER THAN 15 MINUTES. FOR THIS BROWSE DATA SET ONLY SCAN AVERAGE DATA IS GIVEN (NO ANGULAR INFORMATION). THE DATA IS IN THE FORM OF 'RATE' DATA WHICH HAS NOT BEEN CONVERTED TO THE USUAL PHYSICAL UNITS. THE REASON IS THAT SUCH A CONVERSION WOULD DEPEND ON UNCERTAIN DETERMINATIONS SUCH AS THE MASS SPECIES OF THE PARTICLES AND THE LEVEL OF BACKGROUND. BOTH MASS SPECIES AND BACKGROUND ARE GENERALLY DETERMINED FROM CONTEXT DURING THE STUDY OF PARTICULAR REGIONS. TO CONVERT 'RATE' TO 'INTENSITY' FOR A PARTICULAR CHANNEL ONE PERFORMS THE FOLLOWING TASKS: 1) DECIDE ON THE LEVEL OF BACKGROUND CONTAMINATION AND SUBTRACT THAT OFF THE GIVEN RATE LEVEL. BACKGROUND IS TO BE DETERMINED FROM CONTEXT AND FROM MAKING USE OF SECTOR 8 RATES (SECTOR 8 HAS A 2 mm AL SHIELD COVERING IT). 2) DIVIDE THE BACKGROUND CORRECTED RATE BY THE CHANNEL GEOMETRIC FACTOR AND BY THE ENERGY BANDPASS OF THE CHANNEL. THE GEOMETRIC FACTOR IS FOUND IN ENTRY 'channel_geometric_ factor' AS ASSOCIATED WITH EACH CHANNEL 'channel_id'. TO DETERMINE THE ENERGY BANDPASS, ONE MUST JUDGE THE MASS SPECIES OF THE OF THE DETECTED PARTICLES (FOR IONS BUT NOT FOR ELECTRONS). THE ENERGY BAND PASSES ARE GIVEN IN ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPENERGY', AND ARE GIVEN IN THE FORM 'ENERGY/NUCLEON'. FOR CHANNELS THAT BEGIN THEIR NAMES WITH THE DESIGNATIONS 'CH' THESE BANDPASSES CAN BE USED ON MASS SPECIES THAT ARE ACCEPTED INTO THAT CHANNEL (SEE ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPCHANZ', WHICH GIVE THE MINIMUM AND MAXIMUM 'Z' VALUE ACCEPTED -- THESE ENTRIES ARE BLANK FOR ELECTRON CHANNELS). FOR OTHER CHANNELS THE GIVEN BANDPASS REFERS ONLY TO THE LOWEST 'Z' VALUE ACCEPTED. THE BANDPASSES FOR OTHER 'Z' VALUES ARE NOT ALL KNOWN, BUT SOME ARE GIVEN IN THE LITERATURE (E.G. KRIMIGIS ET AL., 1979). THE FINAL PRODUCT OF THESE INSTRUCTIONS WILL BE THE PARTICLE INTENSITY WITH THE UNITS: COUNTS/(CM**2.STR.SEC.KEV). SOME CHANNELS ARE SUBJECT TO SERIOUS CONTAMINATIONS, AND MANY OF THESE CONTAMINATIONS CANNOT BE REMOVED EXCEPT WITH A REGION-BY-REGION ANALYSIS, WHICH HAS NOT BEEN DONE FOR THIS DATA. THUS, TO USE THIS DATA IT IS ABSOLUTELY VITAL THAT THE CONTAMINATION TYPES ('contamination_id' , 'contamination_desc') AND THE LEVELS OF CONTAMINATION ('data_quality_id' CORRESPONDING TO THE DEFINITIONS 'data_quality_desc') BE CAREFULLY EXAMINED FOR ALL REGIONS OF STUDY. A DEAD TIME CORRECTION PROCEDURE HAS BEEN APPLIED IN AN ATTEMPT TO CORRECT THE LINEAR EFFECTS OF DETECTOR OVERDRIVE (PULSE-PILEUP). THIS PROCEDURE DOES NOT FIX SEVERELY OVERDRIVEN DETECTORS. A PROCEDURE IS AVAILABLE FOR CORRECTING VOYAGER 2 LECP ELECTRON CONTAMINATION OF LOW ENERGY ION CHANNELS, BUT ITS EFFECTIVENESS HAS BEEN EVALUATED ONLY FOR THE URANUS DATA SET. THUS, CORRECTIONS HAVE BEEN APPLIED ONLY TO THE URANUS DATA SET.

restrictedus-pdApr 2025View details →
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VOYAGER 2 SATURN PLASMA DERIVED ELECTRON PARAMETERS 96 SEC

THIS DATA SET CONTAINS ELECTRON PARAMETERS IN THE PLS ENERGY RANGE (10-5950 EV) AT SATURN DURING THE VOYAGER 2 ENCOUNTER. PARAMETERS ARE CALCULATED IN SEVERAL WAYS. TOTAL MOMENT DENSITY AND TEMPERATURE ARE GIVEN. EACH ELECTRON SPECTRUM IS ALSO FIT WITH A THERMAL COMPONENT AND 1-3 HOT COMPONENTS DEPENDING ON HOW MANY MAXWELLIANS ARE NEEDED TO FIT THE ENTIRE DISTRIBUTION. THE MOMENT DENSITY AND TEMPERATURE OF THE HOT COMPONENT IS CALCULATED AFTER THE THERMAL COMPONENT IS SUBTRACTED FROM THE SPECTRUM. THE CHI-SQUARE VALUE FOR EACH FIT IS GIVEN. THE SPACECRAFT CHARGE IS NOT CALCULATED CONSISTENTLY, AND MAY RESULT IN FACTOR OF 2-3 ERRORS IN THE THERMAL ELECTRON DENSITY. DATA IS UNRELIABLE INSIDE 6 RS AND IN THE OCCULTATION REGIONS.

restrictedus-pdMar 2025View details →
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Voyager 2 Low-Energy Charged Particle (LECP) Background-Corrected Electron Differential Fluxes, Daily Data in CDF Format

This data set contains data from the LECP instrument on the Voyager 2 spacecraft. Each record in a file contains 1-day (24-hour) scan-averaged fluxes and flux uncertainties of electrons in two contiguous energy channels that cover the energy range 22-61 keV. The period 2006/001 through 2018/304 includes electrons measured upstream of the termination shock and in the heliosheath up to heliopause crossing. The voyager 2 LECP instrument steps through eight, 45 deg full-angle sectors, spending 192 sec in each sector, yielding a full scan through 360 deg every 25.6 min. The LECP scan plane is nearly parallel to RT-plane of the heliospheric RTN coordinate system. The electron data are averaged over the seven active sectors S1-S7; S8 is behind the sun-shield and not included in the average.-- Electron channels designated EB01 and EB02-- Data have been corrected to remove background due to penetrating cosmic ray ions-- Electron fluxes and uncertainties (one st. dev.) in units: (cm^2 s sr MeV)^-1-- Data are 5-point running averages of daily values-- Values -9.900e+01 used for missing or nonphysical data-- Negative year indicates filled data for the associated doy

restrictednotspecifiedApr 2025View details →
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VOYAGER 1 TITAN RADIO OCCULTATION RAW DATA V1.0

This data set consists of raw data collected during the Titan radio occultation of Voyager 1 in November 1980 plus ancillary files that might be useful in analysis of those data. The raw data are sampled voltage outputs from receivers tuned to the Voyager carrier frequencies at both S-band and X-band during the occultations. The data have been reduced to give profiles of atmospheric temperature and pressure as a function of height above the surface on both the ingress and egress sides of Titan and to make a marginal detection of an ionosphere.

restrictedus-pdMar 2025View details →
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VOYAGER 2 SATURN PLASMA DERIVED ION FITS BROWSE 96 SEC

THIS DATA SET CONTAINS THE ION DENSITIES, TEMPERATURES, AND VELOCITIES OBTAINED FROM VOYAGER 2 PLS DATA (VOLTAGE RANGE 10-5950 EV/Q) AT SATURN BY FITTING THE MEASURED SPECTRA WITH ISOTROPIC MAXWELLIAN DISTRIBUTIONS. IT IS A SUBSET OF THE DATA SET VG2-S-PLS-5-ION-FIT-96.0SEC WHICH SHOULD BE OBTAINED BEFORE THIS DATA IS USED. 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=10-12 ION SPECTRA CHANGE RAPIDLY, SO THE VALUES IN THIS DATA SET DO NOT REPRESENT AVERAGE PLASMA CONDITIONS IN THE OUTER MAGNETOSPHERE. A COMPLETE DESCRIPTION OF THIS DATA SET IS GIVEN IN RICHARDSON (1986). DATA FORMAT: FIRST 5 COLUMNS ARE TIME TAG (YEAR, DAY, HOUR, MIN SEC.MSEC), FOLLOWED BY PROTON DENSITY (CM-3), PROTON TEMPERATURE (EV), HEAVY ION DENSITY (CM-3), HEAVY ION TEMPERATURE (EV), AND THREE VELOCITY COMPONENTS, (RHO, PHI,Z) IN KM/S. 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. EACH ROW HAS THE FORMAT (2I4,2I3, F7.3,7E11.3). VALUES OF 1.E32 INDICATE THAT THE PARAMETER COULD NOT BE OBTAINED FROM THE DATA USING THE STANDARD ANALYSIS TECHNIQUE. 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).

restrictedus-pdMar 2025View details →
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VOYAGER 1 JUP LOW ENERGY CHARGED PARTICLE CALIB. 15MIN

THIS DATA SET CONSISTS OF RESAMPLED DATA FROM THE LOW ENERGY CHARGED PARTICLE (LECP) EXPERIMENT ON VOYAGER 1 WHILE THE SPACECRAFT WAS IN THE VICINITY OF JUPITER. THIS INSTRUMENT MEASURES THE INTENSITIES OF IN-SITU CHARGED PARTICLES (>26 KEV ELECTRONS AND >30 KEV IONS) WITH VARIOUS LEVELS OF DISCRIMINATION BASED ON ENERGY, MASS SPECIES, AND ANGULAR ARRIVAL DIRECTION. A SUBSET OF ALMOST 100 LECP CHANNELS ARE INCLUDED WITH THIS DATA SET. THE LECP DATA ARE GLOBALLY CALIBRATED TO THE EXTENT POSSIBLE (SEE BELOW) AND THEY ARE TIME AVERAGED TO ABOUT 15 MINUTE TIME INTERVALS WITH THE EXACT BEGINNING AND ENDING TIMES FOR THOSE INTERVALS MATCHING THE LECP INSTRUMENTAL CYCLE PERIODS (THE ANGULAR SCANNING PERIODS). THE LECP INSTUMENT HAS A ROTATING HEAD FOR OBTAINING ANGULAR ANISOTROPY MEASUREMENTS OF THE MEDIUM ENERGY CHARGED PARTICLES THAT IT MEASURES. THE CYCLE TIME FOR THE ROTATION IF VARIABLE, BUT DURING ENCOUNTERS IT IS ALWAYS FASTER THAN 15 MINUTES. THUS, THE FULL ANGULAR ANISOTROPY INFORMATION IS PRESERVED WITH THIS DATA. THE DATA IS IN THE FORM OF 'RATE' DATA WHICH HAS NOT BEEN CONVERTED TO THE USUAL PHYSICAL UNITS. THE REASON IS THAT SUCH A CONVERSION WOULD DEPEND ON UNCERTAIN DETERMINATIONS SUCH AS THE MASS SPECIES OF THE PARTICLES AND THE LEVEL OF BACKGROUND. BOTH MASS SPECIES AND BACKGROUND ARE GENERALLY DETERMINED FROM CONTEXT DURING THE STUDY OF PARTICULAR REGIONS. TO CONVERT 'RATE' TO 'INTENSITY' FOR A PARTICULAR CHANNEL ONE PERFORMS THE FOLLOWING TASKS: 1) DECIDE ON THE LEVEL OF BACKGROUND CONTAMINATION AND SUBTRACT THAT OFF THE GIVEN RATE LEVEL. BACKGROUND IS TO BE DETERMINED FROM CONTEXT AND FROM MAKING USE OF SECTOR 8 RATES (SECTOR 8 HAS A 2 mm AL SHIELD COVERING IT). 2) DIVIDE THE BACKGROUND CORRECTED RATE BY THE CHANNEL GEOMETRIC FACTOR AND BY THE ENERGY BANDPASS OF THE CHANNEL. THE GEOMETRIC FACTOR IS FOUND IN ENTRY 'channel_geometric_ factor' AS ASSOCIATED WITH EACH CHANNEL 'channel_id'. TO DETERMINE THE ENERGY BANDPASS, ONE MUST JUDGE THE MASS SPECIES OF THE OF THE DETECTED PARTICLES (FOR IONS BUT NOT FOR ELECTRONS). THE ENERGY BAND PASSES ARE GIVEN IN ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPENERGY', AND ARE GIVEN IN THE FORM 'ENERGY/NUCLEON'. FOR CHANNELS THAT BEGIN THEIR NAMES WITH THE DESIGNATIONS 'CH' THESE BANDPASSES CAN BE USED ON MASS SPECIES THAT ARE ACCEPTED INTO THAT CHANNEL (SEE ENTRIES 'minimum_instrument_parameter' and 'maximum_instrument_ parameter' IN TABLE 'FPLECPCHANZ', WHICH GIVE THE MINIMUM AND MAXIMUM 'Z' VALUE ACCEPTED -- THESE ENTRIES ARE BLANK FOR ELECTRON CHANNELS). FOR OTHER CHANNELS THE GIVEN BANDPASS REFERS ONLY TO THE LOWEST 'Z' VALUE ACCEPTED. THE BANDPASSES FOR OTHER 'Z' VALUES ARE NOT ALL KNOWN, BUT SOME ARE GIVEN IN THE LITERATURE (E.G. KRIMIGIS ET AL., 1979). THE FINAL PRODUCT OF THESE INSTRUCTIONS WILL BE THE PARTICLE INTENSITY WITH THE UNITS: COUNTS/(CM**2.STR.SEC.KEV). SOME CHANNELS ARE SUBJECT TO SERIOUS CONTAMINATIONS, AND MANY OF THESE CONTAMINATIONS CANNOT BE REMOVED EXCEPT WITH A REGION-BY-REGION ANALYSIS, WHICH HAS NOT BEEN DONE FOR THIS DATA. THUS, TO USE THIS DATA IT IS ABSOLUTELY VITAL THAT THE CONTAMINATION TYPES ('contamination_id' , 'contamination_desc') AND THE LEVELS OF CONTAMINATION ('data_quality_id' CORRESPONDING TO THE DEFINITIONS 'data_quality_desc') BE CAREFULLY EXAMINED FOR ALL REGIONS OF STUDY. A DEAD TIME CORRECTION PROCEDURE HAS BEEN APPLIED IN AN ATTEMPT TO CORRECT THE LINEAR EFFECTS OF DETECTOR OVERDRIVE (PULSE-PILEUP). THIS PROCEDURE DOES NOT FIX SEVERELY OVERDRIVEN DETECTORS. A PROCEDURE IS AVAILABLE FOR CORRECTING VOYAGER 2 LECP ELECTRON CONTAMINATION OF LOW ENERGY ION CHANNELS, BUT ITS EFFECTIVENESS HAS BEEN EVALUATED ONLY FOR THE URANUS DATA SET. THUS, CORRECTIONS HAVE BEEN APPLIED ONLY TO THE URANUS DATA SET. Also included with this data are one standard deviation statistical uncertainties for the directional data (sectors 1 through 8) expressed as a percent. Unknown values are generally coded as s

restrictedus-pdMar 2025View details →
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VOYAGER 1 JUPITER MAGNETOMETER RESAMPLED DATA 48.0 SEC

This data set includes Voyager 1 Jupiter encounter magnetometer data that have been resampled at a 48.0 second sample rate. The data set is composed of 6 columns: 1) ctime - this column contains the data acquisition time. The time is always output in the ISO standard spacecraft event time format (yyyy-mm-dd-Thh:mm:ss.sss) but is stored internally in Cline time which is measured in seconds after 00:00:00.000 Jan 01, 1966, 2) br - this column contains the radial component of the magnetic field, 3) bphi - this column contains the phi component of the magnetic field, 4) btheta - this column contains the theta component of the magnetic field, 5) bmag - this column contains the magnitude of the magnetic field, 6) flag - a flag value that indicates either software error or spacecraft hardware interference reduced confidence in this record (flag value of 1 is bad , 0 is good or unchecked). All magnetic field observations are measured in nanoTeslas. The coordinate system for this dataset is Minus System III. All of the magnetic field data are calibrated (see the instrument calibration description for more details). The Jupiter System III coordinate system is defined in Dessler 1983 and the reference documents for this dataset are: Ness et al, 1979 Lepping et al, 1981 Connerney,Acuna,Ness, 1981 Behannon,Burlaga,Ness, 1981

restrictedus-pdMar 2025View details →
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VOYAGER 2 SOLAR WIND MAGNETIC FIELD HGCOORDS 48SEC AVG V1.0

This dataset contains Voyager 2 magnetometer data from the interplanetary cruise averaged to 48 second samples in Heliographic coordinates.

restrictedus-pdMar 2025View details →

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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.

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Allen Brain Atlas

Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.

allen-brain-atlas
neuroscienceopenDocumentation, web resources, and API references are available online.
Last verified 2026-04-30Open record

Annotated Behaviour and Observability Dataset (ABODe)

ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.

abode-home-cage
behavioral-neuroscienceopenThe DataShare record exposes download links for annotations, documentation, license text, and the zipped per-snippet data directory.
Last verified 2026-04-30Open record

DANDI Archive for NWB datasets

DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.

dandi-nwb
electrophysiologyopenPublished Dandiset metadata and archive endpoints are available through the production DANDI API.
Last verified 2026-04-30Open record

International Brain Laboratory public data

The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.

ibl
behavioral-neuroscienceopenPublic sessions can be searched and loaded from the IBL public data server through ONE.
Last verified 2026-04-29Open record

OpenNeuro

OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.

openneuro
neuroscienceopenPublished datasets are available on demand over the internet.
Last verified 2026-04-29Open record