PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = " 2010-05-25, C. Piker (U. IOWA), initial; 2010-05-29, W. Kurth (U. IOWA), general revision;" RECORD_TYPE = STREAM OBJECT = DATA_SET DATA_SET_ID = "JNO-E/J/SS-WAV-3-CDR-SRVFULL-V1.0" OBJECT = DATA_SET_INFORMATION DATA_SET_NAME = " JUNO E/J/SS WAVES CALIBRATED SURVEY FULL RESOLUTION V1.0" DATA_SET_COLLECTION_MEMBER_FLG = "N" DATA_OBJECT_TYPE = SPREADSHEET ARCHIVE_STATUS = "PRE PEER REVIEW" START_TIME = NULL STOP_TIME = NULL DATA_SET_RELEASE_DATE = NULL PRODUCER_FULL_NAME = "DR. WILLIAM S. KURTH" DETAILED_CATALOG_FLAG = "N" DATA_SET_TERSE_DESC = " The Juno Waves calibrated full resolution survey data set includes all low rate science spectral information calibrated in units of spectral density for the entire Juno mission." ABSTRACT_DESC = " The Juno Waves calibrated full resolution survey data set includes all low rate science electric spectral densities from 50Hz to 41MHz and magnetic spectral densities from 50Hz to 20kHz with complete sweeps at 30, 10 and 1 second intervals depending on the instrument mode. This is a complete full resolution data set containing all low rate science data received from Waves from launch until the end of mission including initial checkout, the Earth flyby, the Jupiter orbits and all cruise data. Data are acquired from the Waves Low Frequency Receiver (LFR) and High Frequency Receiver (HFR) and are processed into spectra on board. These data are presented as ASCII text spreadsheets for ease of use. This data set is intended to be the most comprehensive and complete data set included in the Juno Waves archive. Pre-rendered spectrograms generated from these data are included as well to lead the user to the particular data file(s) of interest. This data set should be among the first used of any in the Waves archive as it will lead one to the information required to locate more detailed products." CITATION_DESC = "Kurth, W.S., and Piker C.W., JUNO E/J/S/SS WAVES CALIBRATED SURVEY FULL RESOLUTION V1.0, JNO-E/J/SS-WAV-3-CDR-SRVFULL-V1.0, NASA Planetary Data System, 2012." DATA_SET_DESC = " Data Set Overview ================= The Juno Waves calibrated full resolution survey data set includes all low rate science electric spectral densities from 50Hz to 41MHz and magnetic spectral densities from 50Hz to 20kHz with complete sweeps at 30, 10 and 1 second intervals depending on the instrument mode. This is a complete full resolution data set containing all low rate science data received from Waves from launch until the end of mission including near Earth checkout, the Earth flyby, the Jupiter orbits and all cruise data. Data are acquired from the Waves Low Frequency Receiver (LFR) and High Frequency Receiver (HFR) and are processed into spectra in flight. These data are presented as ASCII text spreadsheets for ease of use. This data set is intended to be the most comprehensive and complete data set included in the Juno Waves archive. Pre-rendered spectrograms generated from these data are included as well to lead the user to the particular data file(s) of interest. This data set should be among the first used of any in the Waves archive as it will lead one to the information required to locate more detailed products. Parameters ========== This data set consists of electric and magnetic field spectral densities in the following frequency bands: 1. Magnetic Spectral Densities - 50 Hz to 20 kHz 2. Electric Spectral Densities - 50 Hz to 20 kHz 3. Electric Spectral Densities - 19 kHz to 150 kHz 4. Electric Spectral Densities - 133 kHz to 3 MHz 5. Electric Spectral Densities - 3 MHz to 41 MHz The frequency bands are derived from the analysis bandwidths of the Low Frequency Lo, Low Frequency Hi, and High Frequency Receivers (LFR-LO, LFR-HI, and HFR respectively). The the center frequencies of the bins are roughly log spaced in frequency. The time between frequency sweeps depends on the instrument operating mode as follows: 1. Periapsis Cadence - 1 complete sweep per second 2. Intermediate Cadence - 1 complete sweep every 10 seconds 3. Apoapsis Cadence - 1 complete sweep every 30 seconds Additional cadences can be programmed in flight should the science or unknown operating constraints dictate. Processing ========== Data products for this data set were generated by the CDR data production pipeline as described in section 3 of the VOLSIS document found under the DOCUMENTS subdirectory. The inputs to the processing are: 1. Science and Housekeeping packets from the WAVES_EDR data set. 2. Calibration tables located on this volume. 3. NAIF Juno mission SPICE kernels. 4. A listing of mission phase names and orbit number by UTC. The result of the processing is one spreadsheet file per frequency band per day in which data are available. The WAVES_CAL document in the DOCUMENT directory provides details of the calibration process. These data are calibrated using the best calibration tables and algorithms available at the time the data were archived. Should a significant improvement in calibration become available, an erratum will be noted in the erratum section. Later versions of the products may contain better calibrations. Data ==== The Waves calibrated full resolution survey mode data set includes five ASCII spreadsheets of wave spectra as a function of time from both the upper and lower band of the LFR, the lower band of the HFR as well as the upper spectrum analyzer bands of the HFR. Each spreadsheet contains a fixed number of fields containing the measurement initiation times by spacecraft clock and UTC, a flag to indicate the employment of on-board noise mitigation techniques, a flag to indicate wether the row is a science measurement or a noise sample spectra, and a flag to indicate the presence of burst mode data near the given measurement time, as well as one field for each frequency bin. Ancillary Data ============== Ancillary data included with the data set collection include a series of files that describe the Waves operating modes as a function of time and provide a time-ordered listing of the Instrument Expanded Block (IEB) trigger commands (WAV_MAJOR_MODE) (the mode by which Waves is reconfigured). Also a detailed description of each of the modes (or IEBs) is provided. Other data which are ancillary to this data set, but which are archived separately from this collection are the Navigation and Ancillary Information Facility's SPICE kernels describing the position and attitude of Juno and various solar system bodies as a function of time. Coordinate Systems ================== The data in this data set are measurements of wave electric and magnetic field spectral densities measured by the Waves electric and magnetic sensors. These fields are presented as detected by the sensors and are not rotated into any other coordinate system. If desired the SPICE kernels can be used with the SPICE toolkit to convert from the spacecraft frame to virtually any frame which may be of use in analyzing these data. However, for many purposes, because of the broad beam of the dipole-like sensors, the spectral densities are extremely useful and may be entirely adequate with no coordinate transformations at all. Software ======== As these data are calibrated and in simple ASCII form, no software is provided, and none is required, for conversion or interpretation. However the EXTRAS/SOFTWARE directory does contain the viewing tool used to generate the BROWSE directory spectrograms. This tool may be used to 'zoom in' on regions of interest and to view burst mode data when available. Media/Format ============ This data set is provided to the Planetary Data System electronically as part of a volume level 'tarball' file, though the standards for file names, directory names and path lengths follow the guidelines provided in the 'Planetary Data System Standards Reference', version 3.8, under section 10.1.3, 'Specification for Files Delivered Electronically'. The 'tarball' file contains all files for a release of this volume in a single GNU Tar file that has then been compressed via the GNU gzip utility. The tar file preserves the relative directory path for each file so when unpacked the original volume directory structure is recreated. See Section 4 of the VOLSIS for more details on the data transfer methods." CONFIDENCE_LEVEL_NOTE = " Confidence Level Overview ========================= This data set contains all survey mode full resolution calibrated data for the Juno Waves instrument for the interval defined by the START_TIME and STOP_TIME elements above. Every effort has been made to ensure that all data returned to the ground from the spacecraft are included and that the calibration is accurate. This section will be updated with information on known issues with the data, such as interference from other spacecraft systems, or other information needed to use the data with confidence. Review ====== The Waves calibrated full resolution survey data will be reviewed internally by the Juno Waves team prior to release to the PDS. The data set will also be peer reviewed by the PDS. Data Coverage and Quality ========================= The analog-to-digital converter used for the High Frequency Receiver upper channels (above 3 MHz) has an idiosyncrasy caused by an oscillation in the chip's reference voltage. As a result, the converted values can deviate from the correct ones by of order 10 data numbers. Hence, the HFR channels above 3 MHz may show quasi-random variations around their correct values when the oscillation is occurring. Since the same converter is used for some housekeeping parameters, some of those parameters can be monitored for fluctuations from their nominal values as an indicator of this condition. We have added a flag in the QUALITY_FLAGS column of the SURVEY data set to indicate times when we suspect this condition is present where the flag value of 1 indicates suspect data and a value of 0 indicates the condition is not suspected. It is possible for a low-level of this condition to be present in the HFR channels without the housekeeping parameters indicating the condition. Experience has shown that resetting the chip can stop or reduce the oscillation, hence, such a reset can be performed as a part of setting up major modes. It is planned to do this reset a small number of times per Jupiter orbit at major mode changes. Limitations =========== Limitations on the data set may be defined as the Waves team gains experience operating the instrument in flight conditions. " END_OBJECT = DATA_SET_INFORMATION OBJECT = DATA_SET_TARGET TARGET_NAME = "EARTH" END_OBJECT = DATA_SET_TARGET OBJECT = DATA_SET_TARGET TARGET_NAME = "JUPITER" END_OBJECT = DATA_SET_TARGET OBJECT = DATA_SET_TARGET TARGET_NAME = "SOLAR_SYSTEM" END_OBJECT = DATA_SET_TARGET OBJECT = DATA_SET_HOST INSTRUMENT_HOST_ID = "JNO" INSTRUMENT_ID = "WAV" END_OBJECT = DATA_SET_HOST OBJECT = DATA_SET_MISSION MISSION_NAME = "JUNO" END_OBJECT = DATA_SET_MISSION OBJECT = DATA_SET_REFERENCE_INFORMATION REFERENCE_KEY_ID = "NULL" END_OBJECT = DATA_SET_REFERENCE_INFORMATION END_OBJECT = DATA_SET END