ULYD.CAT REVISION HISTORY ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CHANGES BELOW THIS LINE REFER TO ULYD.CAT, REVIEWED 3/6/96 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 12/10/98 Added: LABEL_REVISION_NOTE = " 1996 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) 1998 Final data updates and new data deliveries (through 1995) to PDS SBN by DDS Science Team (H. Krueger, MPI Heidelberg) 31 Dec 1998 Upgrades and corrections for V2.0 by M. Sykes (SBN) 09 Mar 1999 PDS SBN Peer Review (Heidelberg, Germany)" ---------------------------------------------------------------------------- 12/03/98 DATA_SET_ID = "UL-D-UDDS-5-DUST-V1.0" -> "ULY-D-UDDS-5-DUST-V2.0" ---------------------------------------------------------------------------- 12/03/98 DATA_SET_NAME = "ULYSSES DUST DETECTOR SYSTEM V1.0" -> "ULYSSES DUST DETECTION SYSTEM V2.0" ---------------------------------------------------------------------------- 12/03/98 Changed START_TIME from 1990-10-28T13:51 to 1990-10-27T18:53 (the event data begins earlier than the impact data) ---------------------------------------------------------------------------- 12/03/98 Changed STOP_TIME from 1992-12-29T01:06 to 1996-12-31T23:18 (the event data ends later than the impact data) ---------------------------------------------------------------------------- 12/03/98 Changed DATA_SET_RELEASE_DATE from 1996-03-06 to 1998-11-06 ---------------------------------------------------------------------------- 12/03/98 Included ulydevnt.tab and ulydstat.tab in Dataset Overview section and renumbered included datasets accordingly. ---------------------------------------------------------------------------- 3/25/99 In Dataset Overview, "The data presented with this data set include" is changed to "This data set contains information on dust the dust environment in interplanetary space within the inner solar system, between Jupiter and the Sun, and at high polar latitudes of the Sun. Both interplanetary and interstellar dust particles have been detected. This information is collected with a dust impact experiment, from which may be inferred direction of motion, mass, velocity and charge (see ULYDINST.CAT). The data presented in this dataset include instrumental readouts, inferred metadata, calibration information and a calendar of events. Specifically:" ---------------------------------------------------------------------------- 12/06/98 In Dataset Overview, "[GRUNETAL1995A]" is changed to "(Gruen et al., 1995a and Krueger et al., 1999a)" and "SPACECRAFT SOLAR DISTANCE" is changed to "SPACECRAFT-SUN DISTANCE", "SPACECRAFT JUPITER DISTANCE" is changed to "SPACECRAFT-JUPITER DISTANCE", and "SPACECRAFT-EARTH DISTANCE" is added. and "detectors, and the CHANNELTRON VOLTAGE LEVEL" is changed to "detectors and the CHANNELTRON VOLTAGE LEVEL" ---------------------------------------------------------------------------- 12/04/98 In Dataset Overview, in the description of galdarea.tab, "speed" is changed to "velocity". ---------------------------------------------------------------------------- 12/04/98 In Dataset Overview, "e.g." is changed to "e.g.," throughout. ---------------------------------------------------------------------------- 12/04/98 In Dataset Overview, "The instrument readings are the amplitude codes of the the detectors on-board the instrument, the rise time integer codes of the charge level rise times of the detectors, the integer code representing the difference in starting times of the ion signal and the electron signal, and coincidences between the electron and ion signals, and between the ion and channeltron signals." is changed to "The instrument readings include the amplitude codes of the detectors aboard the instrument and the integer codes representing the charge level rise times of the detectors, the difference in starting times of the ion signal and the electron signal, electron and ion signal coincidence, and ion and channeltron signal coincidence." ---------------------------------------------------------------------------- 12/04/98 In Dataset Overview, the elements of the list introduced by a colon are separated by a semi-colon, changed from a comma. The last element is also thus separated. ---------------------------------------------------------------------------- 12/04/98 In Calibration Data, and CONFIDENCE_LEVEL_NOTE, Calibration Data, "[GOLLER1988]" is changed to "Goller (1988)" ---------------------------------------------------------------------------- 03/18/99 In Calibration Data, added: "The data were provided in a private communication to M. Sykes (Jun 29 03:04 MST 1995) by M. Baguhl. They are the results of these experiments for impacts at an angle of 34 degrees from the detector axis." ---------------------------------------------------------------------------- 12/04/98 In Processing Level, "Some processing is done at the time of the impact observation. This processing categorizes the detector responses to transmit the data efficiently back to Earth." is changed to "Some processing was done at the time of the impact observation. This processing categorized the detector responses to transmit the data efficiently back to Earth." and "On Earth, these integer codes are then fit..." is changed to "On Earth, these integer codes were then fit..." and ". See [GOLLER&GRUEN1989 and GRUENETAL1995C]" is changed to "(Goller and Gruen 1989; Gruen et al., 1995c)." ---------------------------------------------------------------------------- 12/04/98 In Data Reduction - Impact Speed, "[GOLLER&GRUEN1989 and GRUENETAL1995C]" is changed to "(Goller and Gruen 1989; Gruen et al., 1995c)" and "If IT=0, then VIT is invalid and set to -99.9." is changed to "If IT=0, then VIT is invalid." and "If ET=0, then VET is invalid and set to -99.9." is changed to "If ET=0, then VET is invalid." ---------------------------------------------------------------------------- 12/04/98 In Data Reduction - Impact Speed, "... procedures described in part by GRUNETAL1995C and below (see B072295.ASC in the /document directory of this volume)." is changed to "... procedures described in part by Gruen et al. (1995c) and a private communication to M. Sykes (Jul 22 03:43 MST 1995) from M. Baguhl." ---------------------------------------------------------------------------- 12/04/98 In Data Reduction - Impact Speed, and Data Reduction - Impactor Mass, "[GRUENETAL1995C]" and GRUENETAL1995C are changed to "Gruen et al. (1995c)" throughout. ---------------------------------------------------------------------------- 03/18/99 In Data Reduction - Impact Speed Error Factor, "(see B030696.ASC in the /document directory of this volume)" is changed to "(private communication to M. Sykes from M. Baguhl, Mar 6 03:57 MST 1996)" ---------------------------------------------------------------------------- 03/18/99 In Data Reduction - Impactor Mass Error Factor, "(see B030696.ASC in the /document directory of this volume...)" is changed to "(Private communication to M. Sykes from M. Baguhl, Mar 6 03:57 MST 1996...)" ---------------------------------------------------------------------------- 12/04/98 In Data Reduction - Impactor Mass Error Factor "GRUENETAL1995A" is changed to "Gruen et al. (1995a)" and "MEF=10**(sqrt((3.5*log(VEF))**2+(log(2.))**2)" is changed to "MEF=10**(sqrt((3.5*log(VEF))**2+(log(2.))**2))" ---------------------------------------------------------------------------- 12/06/98 In Coordinate System, "Equinox" is changed to "equinox" throughout. ---------------------------------------------------------------------------- 12/03/98 CONFIDENCE_LEVEL_NOTE, Impact times, has been changed from "The impact times are recorded with an accuracy of 2 seconds [GRUNETAL1995C]. to "The impact times are recorded with an accuracy of 2 seconds (Gruen et al., 1995c), corresponding to a transmission rate above 256 bits per second. In a private communication to M. Sykes (Nov 12 08:16 MST 1998), H. Krueger explained that 'for longer readout intervals the accuracy is less because the dust instrument clock gets reset between two readouts and the time information is lost. For example with 128 bps the accuracy is 896sec, with 64 bps, it is 1792 sec, and so on... . So far, a one minute accuracy was sufficient for the Ulysses data.' ---------------------------------------------------------------------------- 03/18/99 CONFIDENCE_LEVEL_NOTE, Impact Speed, "The reason ... to prevent illegal time values (see B072295.ASC)." is changed to "In a private communication to M. Sykes (Jul 22 03:43 MST 1995), M. Baguhl stated that the reason ... to prevent illegal time values." ---------------------------------------------------------------------------- 3/25/99 CONFIDENCE_LEVEL_NOTE, Entrance Grid Amplitude Code (PA), has been added: "In the data that have been published in the literature and electronically prior to 11/98, there are values of PA which exceed 47. In a private communication to M. Sykes (Mar 6 03:57 MST 1996), Michael Baguhl and Rainer Riemann stated: 'Values of PA greater 47 are caused by a bit flip (caused by a timing bug in the sensor electronics) of the MSB. For values greater 47, a value of 16 has to be subtracted.' This correction was made to all PDS DDS files created prior to 11/98. As a consequence of subsequent uncertainty about the origin of PA values greater than 47, in a private communication to M. Sykes (Nov 6 04:07 MST 1998), H. Krueger requested that PA values greater than 47 be corrected to '99'. This has been done in releases of the DDS data through the PDS after 11/98." ---------------------------------------------------------------------------- 12/03/98 CONFIDENCE_LEVEL_NOTE, Ion Channeltron Coincidence (ICC), has been added: "The designation ICC is used following Gruen et al. (1995c) and Krueger et al. (1999b), noting that in Gruen et al. (1995a and b) and Krueger et al. (1999a) the designation is IIC." ---------------------------------------------------------------------------- 01/28/99 CONFIDENCE_LEVEL_NOTE, Electron Collector Threshold (ECP), has been added: "For ulydevnt.tab event #85327, ECP=2 while the nominal instrument setting is ECP=1. In a private communication to M. Sykes (9 Dec 1998 13:27:41 MET), H. Krueger stated that this is probably due to a bit error since the instrument setting was not changed." ---------------------------------------------------------------------------- 03/18/99 CONFIDENCE_LEVEL_NOTE, Channeltron Voltage Level (HV), has been added: "The nominal high voltage HV=4 (1250V) could not be used because of unexpected noise on the channeltron. It is assumed that the nearby radioactive thermal generators (RTGs) are to blame, although other causes cannot be excluded. During ground tests (without RTGs) no such noise was observed. See Gruen et al. (1995a)." ---------------------------------------------------------------------------- 12/03/98 CONFIDENCE_LEVEL_NOTE, Sector, has been added: "In a private communication to M. Sykes (Nov 17 02:25 MST 1998), H. Krueger stated that when the ROTATION ANGLE is invalid, SECTOR is also invalid. In the data that have been published in the literature electronically, prior to 11/98, valid values of SEC are reported when ROTATION ANGLE is invalid. This has been corrected. See Baguhl (1993) for the relationship between ROTATION ANGLE and SECTOR." ---------------------------------------------------------------------------- 2/01/99 CONFIDENCE_LEVEL_NOTE, Mission status data, has been added: "Noise impacts 104 and 105 report instrument settings at variance with that commanded at that time. ----- In a private communication to M. Sykes (9 Dec 1998 13:27:41 MET 1998), H. Krueger stated that values of HV=1 should be HV=2 for mission events on 91-037 and 91-169. The incorrect values were published in Gruen et al. (1995a). ----- In a private communication to M. Sykes (23 Dec 1998 12:59:18 MET), H. Krueger stated that instrument configuration reported for 91-330 16:00 Gruen et al. (1995a), Table 2, occurred at 91-326 10:14. In the same message, Krueger corrected additional entries in Gruen et al. (1995a), Table 2.: Old entries: New entries: 90-301 00:13 90-301 01:11 92-038 18:18 SSEN= 1,0,0,1 92-038 18:56 SSEN= 1, 0, 1, 1 92-038 19:18 92-038 19:55 92-038 20:18 92-038 20:55 92-040 02:21 92-040 02:59 92-040 03:21 92-040 03:59 ----- The SSEN and HV values for ulydevnt.tab events within a 4 hour period from the beginning of a 'GRU noise test' is often inconsistent with the procedure reported in the Krueger et al. (1999a), which may be summarized as: At one hour intervals, (1) EVD=C,I,E (2) SSEN=0,0,0,0 (3) EVD=C,I (4) HV=4 (5) HV=3, SSEN=0,0,0,1 (nominal conmfiguration) In a private communication to M. Sykes (23 Dec 1998 12:59:18 MET), H. Krueger stated that the above configuration sequence for the noise tests were those requested by the DDS team. It appears that the order of some of the command sequences were subsequently changed during some noise tests by ground control. ---------------------------------------------------------------------------- 12/03/98 In INSTRUMENT_HOST_ID , UL -> ULY ---------------------------------------------------------------------------- 12/03/98 In REFERENCE_KEY_IDs, "GOLLER&GRUN1989" is changed to "GOLLER&GRUEN1989", "GRUNETAL1995A" is changed to "GRUENETAL1995A", and "GRUNETAL1995C" is changed to "GRUENETAL1995C" ---------------------------------------------------------------------------- 12/03/98 Added: OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KRUEGERETAL1999A" END_OBJECT = DATA_SET_REFERENCE_INFORMATION ---------------------------------------------------------------------------- 03/18/99 Added: OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "BAGUHL1993" END_OBJECT = DATA_SET_REFERENCE_INFORMATION and OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "KRUEGERETAL1999B" END_OBJECT = DATA_SET_REFERENCE_INFORMATION and OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "GRUENETAL1995B" END_OBJECT = DATA_SET_REFERENCE_INFORMATION ---------------------------------------------------------------------------- 12/03/98 Removed all REFERENCE_DESC. ----------------------------------------------------------------------------