GALDDUST.LBL REVISION HISTORY ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CHANGES BELOW THIS LINE REFER TO GALDDUST.LBL, REVIEWED 3/6/96 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 1/19/99 Added: LABEL_REVISION_NOTE = " 1995 Final data deliveries (through 1992) to PDS SBN by DDS Science Team (E. Gruen, MPI Heidelberg) 01 Jan 1996 Creation of V1.0 by M. Sykes (SBN) 06 Mar 1996 PDS SBN Peer Review (Tucson, Arizona) 1999 Final data updates and new data deliveries (through 1997) to PDS SBN by DDS Science Team (H. Krueger, MPI Heidelberg) Jan 1999 Upgrades and corrections for V2.0 by M. Sykes (SBN) 8 Mar 1999 PDS SBN Peer Review (Heidelberg, Germany)" ---------------------------------------------------------------------------- 12/03/98 RECORD_BYTES changed from 136 to 169 ---------------------------------------------------------------------------- 1/19/99 FILE_RECORDS changed from 358 to 13429 ---------------------------------------------------------------------------- 12/05/98 ^TABLE = "GALDDUST.TAB" -> "galddust.tab" ---------------------------------------------------------------------------- 12/03/98 DATA_SET_NAME = "GALILEO DUST DETECTOR SYSTEM V1.0" -> "GALILEO DUST DETECTION SYSTEM V2.0" ---------------------------------------------------------------------------- 12/03/98 DATA_SET_ID = "GO-D-GDDS-5-DUST-V1.0" -> "GO-D-GDDS-5-DUST-V2.0" ---------------------------------------------------------------------------- 12/05/98 PRODUCT_ID = "GALD-DUST-199603" -> "GALD-GALDDUST-199603" ---------------------------------------------------------------------------- 12/05/98 Added: PRODUCT_NAME = "Galileo DDS Impacts Table" ---------------------------------------------------------------------------- 12/03/98 SPACECRAFT_NAME = "Galileo Orbiter" -> "GALILEO ORBITER" ---------------------------------------------------------------------------- 12/03/98 INSTRUMENT_NAME = "Galileo Dust Detector" -> "GALILEO DUST DETECTION SYSTEM" ---------------------------------------------------------------------------- 12/03/98 STOP_TIME changed from 1992-12-28T15:47 to 1997-12-18T09:03 ---------------------------------------------------------------------------- 12/03/98 PRODUCT_CREATION_TIME changed from 1996-03-06 to 1999-01-19 ---------------------------------------------------------------------------- 12/05/98 PRODUCT_CREATION_TIME in-line comment "/* Peer Review Date */" removed. ---------------------------------------------------------------------------- 12/03/98 RECORD_FORMAT changed from (i5,f13.4,f6.1,5i2,8i3,5i2,f8.5,2f6.1,f8.5,3i4,2f5.1,e9.2,f7.1) to (i6,1x,i6,1x,a14,1x,i3,1x,f12.4,1x,i1,1x,i1,1x,i3,1x,i2,1x,i2,1x, i2,1x,i2,1x,i2,1x,i2,1x,i1,1x,i1,1x,i2,1x,i2,1x,i1,1x,i1,1x,i1, 1x,i1,1x,i1,1x,a1,1x,f7.5,1x,f5.1,1x,f5.1,1x,f7.5,1x,f7.5,1x,i3, 1x,i3,1x,i3,1x,f4.1,1x,f4.1,1x,e8.2,1x,f6.1) ---------------------------------------------------------------------------- 12/03/98 ROWS changed from 358 to 13429 ---------------------------------------------------------------------------- 12/03/98 COLUMNS changed from 32 to 36 ---------------------------------------------------------------------------- 12/03/98 ROW_BYTES changed from 136 to 169 ---------------------------------------------------------------------------- 12/03/98 4 additional columns have been added since the last SBN review in 1996: OBJECT = COLUMN COLUMN_NUMBER = 2 NAME = "EVENT SEQUENCE NUMBER" DESCRIPTION = "The number associated with an event in the file, GALDEVNT.TAB, with 1 being the first event recorded and n being the n'th event recorded." DATA_TYPE = "ASCII INTEGER" START_BYTE = 8 BYTES = 6 FORMAT = I6 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 3 NAME = "EVENT TIME" DESCRIPTION = "The time of an event given in year, day of year, hours and minutes in the general form: yyyy-dddThh:mm." DATA_TYPE = "TIME" START_BYTE = 15 BYTES = 14 FORMAT = A14 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 4 NAME = "TIME ERROR VALUE" UNIT = "MINUTES" DESCRIPTION = "The uncertainty (TEV) of the event time. A value of zero corresponds to an uncertainty of 2/3 seconds. See Confidence Level Note, Time Error Value, in GALD.CAT." DATA_TYPE = "ASCII INTEGER" START_BYTE = 30 BYTES = 3 FORMAT = I3 END_OBJECT = COLUMN OBJECT = COLUMN COLUMN_NUMBER = 29 NAME = "SPACECRAFT-JUPITER DISTANCE" UNIT = "AU" DESCRIPTION = "The distance from the spacecraft to Jupiter." DATA_TYPE = "ASCII REAL" START_BYTE = 123 BYTES = 7 FORMAT = "F7.5" END_OBJECT = COLUMN ---------------------------------------------------------------------------- 12/03/98 The ordering of the columns have also been changed to reflect more closely the ordering used by the DDS Science Team. Order 3/96: SEQUENCE NUMBER DATE JULIAN SECTOR ION COLLECTOR THRESHOLD ELECTRON COLLECTOR THRESHOLD CHANNELTRON VOLTAGE LEVEL CHANNELTRON THRESHOLD ENTRANCE GRID THRESHOLD ION AMPLITUDE CODE ELECTRON AMPLITUDE CODE CHANNELTRON AMPLITUDE CODE ENTRANCE GRID AMPLITUDE CODE ION RISE TIME CODE ELECTRON RISE TIME CODE ENTRANCE GRID RISE TIME CODE ELECTRON ION TIME CODE ELECTRON ION COINCIDENCE ION CHANNELTRON COINCIDENCE EVENT DEFINITION ION AMPLITUDE RANGE EVENT CLASS SPACECRAFT SOLAR DISTANCE ECLIPTIC LONGITUDE ECLIPTIC LATITUDE SPACECRAFT EARTH DISTANCE ROTATION ANGLE DETECTOR ECLIPTIC LONGITUDE DETECTOR ECLIPTIC LATITUDE PARTICLE SPEED PARTICLE SPEED ERROR FACTOR PARTICLE MASS PARTICLE MASS ERROR FACTOR Order 12/98 IMPACT SEQUENCE NUMBER EVENT SEQUENCE NUMBER NATIVE TIME TIME ERROR VALUE DATE JULIAN EVENT CLASS ION AMPLITUDE RANGE SECTOR ION AMPLITUDE CODE ELECTRON AMPLITUDE CODE CHANNELTRON AMPLITUDE CODE ION RISE TIME CODE ELECTRON RISE TIME CODE ELECTRON ION TIME CODE ELECTRON ION COINCIDENCE ION CHANNELTRON COINCIDENCE ENTRANCE GRID AMPLITUDE CODE ENTRANCE GRID RISE TIME CODE EVENT DEFINITION ION COLLECTOR THRESHOLD ELECTRON COLLECTOR THRESHOLD CHANNELTRON THRESHOLD ENTRANCE GRID THRESHOLD CHANNELTRON VOLTAGE LEVEL SPACECRAFT-SUN DISTANCE ECLIPTIC LONGITUDE ECLIPTIC LATITUDE SPACECRAFT-EARTH DISTANCE SPACECRAFT-JUPITER DISTANCE ROTATION ANGLE DETECTOR ECLIPTIC LONGITUDE DETECTOR ECLIPTIC LATITUDE PARTICLE SPEED PARTICLE SPEED ERROR FACTOR PARTICLE MASS PARTICLE MASS ERROR FACTOR ---------------------------------------------------------------------------- 12/05/98 In the table DESCRIPTION "[GRUENETAL1995A]" is changed to "Gruen et al. (1995b) and Krueger et al. (1999b)" ---------------------------------------------------------------------------- 12/05/98 In the table DESCRIPTION "for reliable impacts" inserted. ---------------------------------------------------------------------------- 12/05/98 COLUMN_NUMBER added to each column description. ---------------------------------------------------------------------------- 12/05/98 "Coulomb" is changed to "coulomb" throughout. ---------------------------------------------------------------------------- 12/05/98 DATA_TYPE "ASCII CHARACTER" changed to "CHARACTER" throughout. ---------------------------------------------------------------------------- 12/03/98 The previous SEQUENCE NUMBER has been renamed IMPACT SEQUENCE NUMBER in order to more easily distinguish it from EVENT SEQUENCE NUMBER. ---------------------------------------------------------------------------- 12/03/98 IMPACT SEQUENCE NUMBER changed from i5 to i6 because of the future possibility of having more than 99999 impacts. ---------------------------------------------------------------------------- 12/05/98 "DATE JULIAN" is changed to "JULIAN DATE" and its DESCRIPTION is modified from "The Julian date of the impact." to "The full Julian date of the event." ---------------------------------------------------------------------------- 12/03/98 EVENT CLASS has been updated to reflect a change in definition after July 14, 1994. Added: "***** Before July 14, 1994: ***** " and "***** After July 14, 1994: ***** Note: Classes 1 and 2 are divided into two different subclasses which are mutually exclusive. ------------------------------------------------------------------------ Parameters: | CLN=0 | CLN=1 | CLN=2 | CLN=3 ------------------------------------------------------------------------ IA | IA>0 | IA>0 | IA>0 | IA>0 | IA>0 | IA>0 --------------| or |--------|------|------------|--------|----------- EA | EA>0 | EA>0 | | EA>0 | | EA>0 --------------| or |--------|------|------------|--------|----------- CA | CA>0 | | CA>0 | | CA>0 | CA>0 --------------|-------|--------|------|------------|--------|----------- ET | | | | | | 1<=ET<=15 --------------|-------|--------|------|------------|--------|----------- IT | | | | | | 1<=IT<=15 --------------|-------|--------|------|------------|--------|----------- EIC | | EIC=1 | | EIC=0 | | EIC=0 --------------|-------|--------|------|------------|--------|----------- ICC | | | | | ICC=1 | ICC=1 --------------|-------|--------|------|------------|--------|----------- | | EIT=0 | | | | EIT | | or | | 3<=EIT<=15 | | 3<=EIT<=15 | | EIT=15 | | | | --------------|-------|--------|------|------------|--------|----------- Noise counter| | | | | | of: | | | | | | EN | | | | EN<=8 | | EN<=8 IN | | | | IN<=14 | | IN<=2 CN | | | | | CN<=14 | CN<=2 ------------------------------------------------------------------------ " ---------------------------------------------------------------------------- 12/03/98 ION AMPLITUDE RANGE - change IAR to AR to conform to DDS Science Team abbreviation. ---------------------------------------------------------------------------- 12/03/98 The definition for SECTOR has been corrected and is no longer converted to degrees, retaining the values as delivered by the DDS Science Team: "The angular orientation of the sensor axis about the spacecraft spin axis at the time of each impact, measured in the plane perpendicular to the spin axis of Galileo which points roughly toward the Earth. The angle is defined to be zero when the dust sensor axis points closest to the Sun, and its value increases clockwise when the spacecraft is seen from the Earth. SECTOR was originally recorded as an integer value between 0 and 255, but has been converted to degrees through scaling by 1.40625." is changed to "The angular orientation of the sensor axis about the spacecraft spin axis at the time of each event, measured in the plane perpendicular to the spin axis of Galileo. The angle is defined to be zero when the sensor axis crosses the ecliptic plane toward ecliptic north. Its value increases clockwise when the spacecraft is seen from the Earth. SECTOR is an 8-bit counter having integer values between 0 and 255, and is converted to degrees through scaling by 1.40625. See Confidence Level Note, Sector, in GALD.CAT." and UNIT = "DEGREES" has been deleted ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ION AMPLITUDE CODE, "Eight digitization steps cover about one decade in charge and steps 32 through 47 are not used." is changed to "Eight digitization steps cover about one decade in charge. Steps 32 through 47 are not used." ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ELECTRON AMPLITUDE CODE, "Eight digitization steps cover about one decade in charge and steps 32 through 47 are not used." is changed to "Eight digitization steps cover about one decade in charge. Steps 32 through 47 are not used." ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ELECTRON ION TIME CODE, "Increasing values indicate increasing electron minus ion rise time differences." is changed to "Increasing values indicate an increase in the value of the start time of the electron signal minus the start time of the ion signal." ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTIONs of ELECTRON ION COINCIDENCE and ION CHANNELTRON COINCIDENCE, "...this variable is set to 1, and 0 otherwise." is changed to "...this variable is set to 1, and to 0 otherwise." ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION for ION CHANNELTRON COINCIDENCE, GRUENETAL1995C is changed to Gruen et al. (1995c) and GRUENETAL1995B is changed to Gruen et al. (1995b) and, added "See Confidence Level Note, Ion Channeltron Coincidence, in GALD.CAT." ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ENTRANCE GRID AMPLITUDE CODE, "Increasing values indicate increasing amplitude." is changed to "Increasing values indicate increasing amplitudes." ---------------------------------------------------------------------------- 12/03/98 ENTRANCE GRID AMPLITUDE CODE (PA) "MISSING_CONSTANT = 99" added ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ENTRANCE GRID RISE TIME CODE, "Increasing values indicate increasing rise time." is changed to "Increasing values indicate increasing rise times." ---------------------------------------------------------------------------- 03/25/99 In the DESCRIPTION of ENTRANCE GRID AMPLITUDE CODE, "See Confidence Level Note, Entrance Grid Amplitude Code, in GALD.CAT." is added. ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of EVENT DEFINITION, "...for which threshold values are exceeded." is changed to "...for which threshold values must be exceeded." ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ION COLLECTOR THRESHOLD, "...charge impulse(Q_I) at the time of impact." is changed to "...charge impulse (Q_I) arising from an event." ---------------------------------------------------------------------------- 12/03/98 ION COLLECTOR THRESHOLD - ICT changed to ICP to conform to GRUENETAL1995B (Table 4). ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of ELECTRON COLLECTOR THRESHOLD, "...charge impulse(Q_E) at the time of impact." is changed to "...charge impulse (Q_E) arising from an event." ---------------------------------------------------------------------------- 12/03/98 ELECTRON COLLECTOR THRESHOLD - ECT changed to ECP to conform to GRUENETAL1995B (Table 4). ---------------------------------------------------------------------------- 12/05/98 In the DESCRIPTION of CHANNELTRON THRESHOLD, "...charge(Q_C) pulse at the time of impact." is changed to "...charge impulse (Q_C) arising from an event." ---------------------------------------------------------------------------- 12/03/98 ENTRANCE GRID THRESHOLD - EGT changed to PCP to conform to GRUENETAL1995B (Table 4). ---------------------------------------------------------------------------- 03/19/99 ENTRANCE GRID THRESHOLD "at the time of impact" -> "arising from an event" ---------------------------------------------------------------------------- 12/03/98 CHANNELTRON VOLTAGE LEVEL - HV changed to character from integer to accommodate new value of 'X' designating the channeltron high voltage being turned off and '?' designating the channeltron high voltage is unknown. ---------------------------------------------------------------------------- 03/19/99 CHANNELTRON VOLTAGE LEVEL "time of impact" -> "time of an event" and "See Confidence Level Note, Channeltron Voltage Level, in GALD.CAT." is added. and second (HV) deleted (3/22/99) ---------------------------------------------------------------------------- 12/05/98 "SPACECRAFT SOLAR DISTANCE" is changed to "SPACECRAFT-SUN DISTANCE". ---------------------------------------------------------------------------- 03/19/99 ECLIPTIC LONGITUDE "at the time of impact" deleted. ---------------------------------------------------------------------------- 03/19/99 ECLIPTIC LATITUDE "at the time of impact" deleted. ---------------------------------------------------------------------------- 12/05/98 "SPACECRAFT EARTH DISTANCE" is changed to "SPACECRAFT-EARTH DISTANCE". ---------------------------------------------------------------------------- 03/19/99 SPACECRAFT-EARTH DISTANCE "See Confidence Level Note, Spacecraft Earth Distance, in GALD.CAT." added. ---------------------------------------------------------------------------- 12/05/98 "SPACECRAFT-JUPITER DISTANCE" is added. ---------------------------------------------------------------------------- 12/03/98 The definition for ROTATION ANGLE has been changing from "... It is measured in the plane perpendicular to the spin axis of Galileo which points roughly toward the Earth. The angle is defined to be zero when the dust sensor axis points closest to the ecliptic north and it increases clockwise when the spacecraft is seen from the Earth..." to "... It is measured in the plane perpendicular to the spin axis of Galileo. The angle is defined to be zero when the sensor axis points closest to the ecliptic north and it increases clockwise when the spacecraft is seen from the Earth..." and "each impact" -> "each event" (3/19/99) and "(where SECTOR is converted to degrees)" is added (3/22/99) ---------------------------------------------------------------------------- 03/19/99 DETECTOR ECLIPTIC LONGITUDE "spacecraft-centered" inserted. ---------------------------------------------------------------------------- 03/19/99 DETECTOR ECLIPTIC LATITUDE "spacecraft-centered" inserted. ---------------------------------------------------------------------------- 03/19/99 For PARTICLE SPEED, "mean" deleted and "See Data Reduction, Impact Speed, and Confidence Level Note, Impact Speed, in GALD.CAT." added. ---------------------------------------------------------------------------- 03/19/99 For PARTICLE SPEED ERROR FACTOR, "mean" deleted and "See Data Reduction, Impact Speed Error Factor, and Confidence Level Note, Impact Speed, in GALD.CAT." added. ---------------------------------------------------------------------------- 12/05/98 For PARTICLE MASS, MISSING_CONSTANT = 0 -> 0.e0 ---------------------------------------------------------------------------- 03/19/99 PARTICLE MASS "mean" deleted and "See Data Reduction, Impactor Mass, in GALD.CAT." added. ---------------------------------------------------------------------------- 03/19/99 PARTICLE MASS ERROR FACTOR "mean" deleted and "See Data Reduction, Impactor Mass Error Factor, in GALD.CAT." added. ----------------------------------------------------------------------------