Data Set Information
DATA_SET_TERSE_DESCRIPTION Raw data taken by New Horizons Solar Wind Around Pluto instrument during the JUPITER mission phase.
Data Set Overview
      This data set contains Raw data taken by New Horizons
        Solar Wind Around Pluto
      instrument during the JUPITER mission phase.
      During the Jupiter mission phase, SWAP used two voltage sweeping
      plans:  plan 0 and plan 5.  Plan 0 was designed for solar wind
      observations with the RPA voltage set to 105% of the center
      energy of the ESA passband below 2000eV.  Above 2000eV the RPA
      was turned off and only the ESA was operated.  In plan 0
      coarse-fine scans were performed.  In plan 5 the RPA was off for
      the entire energy sweep.
      From 01/07/2007 11:08:51 to 2/21/2007 16:42:42 SWAP was in plan
      0 taking 2 minutes of data approximately every 2 hours.  At
      2/21/2007 17:27:31 the science team kept the plan number set at
      0 and changed the the data rate such that SWAP took 1 coarse and
      1 fine scan every 5 minutes.  Then at 02/25/2007 19:22:43 the
      team switched to plan 5 which had the RPA off and did two coarse
      scans in 64 seconds every 5 minutes.  From 04/14/2007 22:13:23
      to 04/16/2007 06:41:06 SWAP was in plan 0, and from 04/22/2007
      10:45:23 onward SWAP mostly in plan 5 until it was changed back
      to plan 0.
      Every observation provided in this data set was taken as a part of a
      particular sequence.  A list of these sequences follows:
      Sequence IDs & start times (end times are the start times
      of the following Sequence IDs) for the SWAP instrument
      during the JUPITER phase of the New Horizons Mission
      Sequence ID:  JESW_PLACEHOLDER
      Start UTC:    2007-01-01T00:00:00
      Description:  The SWAP instrument did not have any sequenced data
                    taken during Jupiter encounter.  This entry is only a
                    placeholder to cover any data that exist.
      For the list of observations and their parameters, refer to
      the data set index table (typically INDEX.TAB & CUMINDEX.TAB,
      initially in the /INDEX/ area of the data set).
      There are several time systems, or units, in use in this dataset:
      New Horizons spacecraft MET (Mission Event Time or Mission Elapsed
      Time), UTC (Coordinated Universal Time), and TDB Barycentric
      Dynamical Time.
      This section will give a summary description of the relationship
      between these time systems.  For a complete explanation of these
      time systems the reader is referred to the documentation
      distributed with the NAIF/SPICE toolkit from the NAIF PDS node.
      The most common time unit associated with the data is is the
      spacecraft MET.  MET is a 32-bit counter on the New Horizons
      spacecraft that runs at a rate of about one increment per second
      starting from a value of zero at
        19.January, 2006 18:08:02 UTC
        JD2453755.256337 TDB.
      The leapsecond adjustment (DELTA_ET = ET - UTC) over this dataset
      is 65.184s.
      The data labels for any given product in this dataset usually
      contain at least one pair of common UTC and MET representations
      of the time at the middle of the observation.  Other portions
      of the products, for example tables of data taken over periods
      of up to a day or more, will only have the MET time associated
      with a given row of the table.
      For the data user's use in interpreting these times, a reasonable
      approximation (+/- 1s) of the conversion between Julian Day (TDB)
      and MET is as follows:
        JD TDB = 2453755.256337 + ( MET / 86399.9998693 )
      For more accurate calculations the reader is referred to the
      NAIF/SPICE documentation as mentioned above.
      The data in this data set were created by a software data
      processing pipeline on the Science Operation Center (SOC) at
      the Southwest Research Institute (SWRI), Department of Space Studies.
      This SOC pipeline assembled data as FITS files from raw telemetry
      packets sent down by the spacecraft and populated the data labels
      with housekeeping and engineering values, and computed geometry
      parameters using SPICE kernels. The pipeline did not resample
      the data.
      The observations in this data set are stored in data files using
      standard Flexible Image Transport Sytem (FITS) format.  Each FITS
      file has a corresponding detached PDS label file, named according
      to a common convention.  The FITS files have image and/or table
      extensions; see the PDS label plus the DOCUMENT files for a
      description of these extensions and their contents.
      This Data section comprises the following sub-topics:
      - Filename/Product IDs
      - CODMAC Level 2 SWAP data details
      - Instrument description
      - Visit Description, Visit Number, and Target in the Data Labels
      - Unresolved Liens on the Data
      Filename/Product IDs
        The filenames and product IDs of observations adhere to a
        common convention e.g.
         ^^^ ^^^^^^^^^^ ^^^^^ ^^^ ^\__/
         |        |       |    |  | ^^
         |        |       |    |  |  |
         |        |       |    |  |  +--File type (includes dot)
         |        |       |    |  |     - .FIT for FITS file
         |        |       |    |  |     - .LBL for PDS label
         |        |       |    |  |     - not part of product ID
         |        |       |    |  |
         |        |       |    |  +-- Version number from the SOC
         |        |       |    |      (Science Operations Center)
         |        |       |    |
         |        |       |    +--ENG for CODMAC Level 2 data *
         |        |       |       SCI for CODMAC Level 3 data *
         |        |       |
         |        |       +--Application ID (ApID) of the telemetry data
         |        |          packet from which the data come
         |        |
         |        +--MET (Mission Event Time) i.e. Spacecraft Clock
         +--Instrument/observation designator
          * For those datasets where the NH project is delivering
            CODMAC Level 1 & 2 data (REX & PEPSSI), ENG and SCI apply
            to CODMAC Level 1 & 2 data, respectively.
        Instrument   Instrument/observation designators  ApIDs
        ===========  ==================================  =============
         SWAP         SWA                                0X584 - 0X586
         * Not all values in this range are used
         There are other ApIDs that contain housekeeping values and
         other values.  See the documentation for more details.
        Here is a summary of the types of files generated by each APiD:
      ApIDs   Data product description
      =====   ========================
      0x584 - SWAP Science Real-Time
      0x585 - SWAP Science Summary
      0x586 - SWAP Science Histogram Header
      0x587 - SWAP Science Histogram Data
      Instrument description
        Refer to the following files for a description of this instrument.
          NH_SWAP_V###_TI.TXT  (### is a version number)
      Visit Description, Visit Number, and Target in the Data Labels
        The observation sequences were defined in Science Activity
        Planning (SAP) documents, and grouped by Visit Description and
        Visit Number.  The SAPs are spreadsheets with one Visit Description
        & Number per row.  A nominal target is also included on each row
        and included in the data labels, but does not always match with the
        TARGET_NAME field's value in the data labels.  In some cases, the
        target was designated as RA,DEC pointing values in the form
        ``RADEC=123.45,-12.34'' indicating Right Ascension and Declination,
        in degrees, of the target from the spacecraft in the Earth
        Equatorial J2000 inertial reference frame.  This indicates either
        that the target was either a star, or that the target's ephemeris
        was not loaded into the spacecraft's attitude and control system
        which in turn meant the spacecraft could not be pointed at the
        target by a body identifier and an inertial pointing value had to
        be specified as Right Ascension and Declination values.  The PDS
        standards do not allow putting a value like RADEC=... in the PDS
        TARGET_NAME keyword's value; in those cases the PDS TARGET_NAME
        value is set to CALIBRATION.
      Unresolved Liens on the Data
        None exist at the present time.
    Ancillary Data
      The geometry items included in the data labels were computed
      using the SPICE kernels archived in the New Horizons SPICE
      data set, NH-X-SPICE-6-JUPITER-V1.0.
    Reference Frame
      Geometric Parameter Reference Frame
        Earth Mean Equator and Vernal Equinox of J2000 (EMEJ2000) is the
        inertial reference frame used to specify observational geometry
        items provided in the data labels.  Geometric parameters are based
        on best available SPICE data at time of data creation.
      Epoch of Geometric Parameters
        All geometric parameters provided in the data labels were
        computed at the epoch midway between the START_TIME and
        STOP_TIME label fields.
      The observations in this data set are in standard FITS format
      with PDS labels, and can be viewed by a number of PDS-provided
      and commercial programs. For this reason no special software is
      provided with this data set.
    Contact Information
      For any questions regarding the data format of the archive,
      contact the person whose PDS_USER_ID is DMCCOMAS
      as described in PERSONNEL.CAT.
DATA_SET_RELEASE_DATE 2007-12-13T00:00:00.000Z
START_TIME 2007-01-01T12:00:00.000Z
STOP_TIME 2007-06-27T12:00:00.000Z
MISSION_START_DATE 2006-01-19T12:00:00.000Z
NODE_NAME Small Bodies
Confidence Level Overview
      During the processing of the data in preparation for
      delivery with this volume, the packet data associated with each
      observation were used only if they passed a rigorous verification
      process including standard checksums.
      The data have been reviewed and validated by the instrument team
      members, as well as by SOC personnel.
ABSTRACT_TEXT This data set contains Raw data taken by the New Horizons Solar Wind Around Pluto instrument during the Jupiter encounter mission phase.
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