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What does this data set describe?

Title:
Geophysical data of field activity M-2A-70-SP in Southern Pacific from 07/29/1970 to 08/02/1970
Abstract:
Geophysical data (bathymetry, gravity, magnetics) of field activity M-2A-70-SP in Southern Pacific from 07/29/1970 to 08/02/1970, <http://walrus.wr.usgs.gov/infobank/m/m2a70sp/html/m-2a-70-sp.meta.html>.
Supplemental_Information:

Equipment Used -
bathymetry
gravity
magnetics magnetometer

Similar information is available for thousands of other USGS/CMG-related Activities.
If known, available are Activity-specific navigation, gravity, magnetics, bathymetry, seismic, and sampling data; track maps; and equipment information; as well as summary overviews, crew lists, and information about analog materials.
If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Primary access to the USGS/CMG Information Bank's digital data, analog data, and metadata is provided through... <http://walrus.wr.usgs.gov/infobank/>
This page accomodates a variety of search approaches (e.g., by platform, by region, by scientist, by equipment type, etc.).
  1. How should this data set be cited?

    U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>, 20131029, Geophysical data of field activity M-2A-70-SP in Southern Pacific from 07/29/1970 to 08/02/1970: U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 152.17220
    East_Bounding_Coordinate: 157.29279
    North_Bounding_Coordinate: -3.67963
    South_Bounding_Coordinate: -9.99800

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 29-Jul-1970
    Ending_Date: 02-Aug-1970
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect_Spatial_Reference: Southern Pacific
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.

      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: Local surface
      Depth_Resolution: 0.1
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Attribute values


  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.html>
    Entity_and_Attribute_Overview:
    Gravity with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/grav.html>
    Entity_and_Attribute_Overview:
    Magnetics with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/mag.html>
    Entity_and_Attribute_Overview:
    Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>


Why was the data set created?

These data and information are intended for science researchers, students from elementary through college, policy makers, and general public.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    Date: 06-Dec-1995 (process 1 of 4)
    Navigation Data
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Date: 31-Oct-1998 (process 2 of 4)
    Gravity Data
    10/31/1998  /tiger/m/m2a70sp/grav/m-2a-70-sp.160_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    02/20/86 BARB DUA0:[DATA.<CRUISE_ID>.G]<CRUISE_ID>.160;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    
    extracted from data acquired from NGDC
    
    Input was...
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    time, lat, long, time(sec) to nearest nav fix, data values
    

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Date: 20-Jun-2012 (process 3 of 4)
    Magnetics Data
    06/20/2012 carolyn m-2a-70-sp.220_050
    
    Reprocessed using subroutines from Susan Macmillan's
    IGRF SYNTHESIS PROGRAM <http://www.ngdc.noaa.gov/IAGA/vmod/igrf11.f>
    with IGRF-11 coeffiecients integrated into the source code.
    /infobank/programs/mag/magred11/magred11.for
    Using geodetic coordinate system (Earth shape approximated by spheriod)
    with altitude 0.0 km (for sea level).
    
    Input was...
    10/31/1998  /tiger/m/m2a70sp/mag/m-2a-70-sp.200_050
    /bear/programs/edit/automerge/automerge
    
    Converted to time format with year at start.
    
    03/03/86 CAROLYN DRS$DATA:[<cruise_id>.M]<cruise_id>.200;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
    extracted by Clint from data acquired from NGDC
    
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    time, lat, long, time(sec) to nearest nav fix, data values
    

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Date: 31-Oct-1998 (process 4 of 4)
    Bathymetry Data
    10/31/1998  /tiger/m/m2a70sp/bath/m-2a-70-sp.325_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    Converted to time format with year at start.
    
    03/03/86 BECKIE DRS$DATA:[<cruise_id>.B]<cruise_id>.325;
    DRB0:[DRS.NGDC]UNREFNGDC.EXE;5
    NGDC files sometimes have only 2_way_travel_time in
    which case the format is the same but without corr_depth.
    This file was extracted by C. Steele from data acquired from NGDC.
    
    Input was...
    Converted to time format with year at start.
    
    03/03/86 KAYE DUA0:[DATA.<cruise_id>.N]<cruise_id>.050;
    DRB0:[DRS.REFMT]REFORMAT.EXE;5
     Extracted from data acquired from NGDC.
    
    time, lat, long, time(sec) to nearest nav fix, data values
    

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

  3. What similar or related data should the user be aware of?

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Unknown, USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>: U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Identified as best available version.

  2. How accurate are the geographic locations?

    Unspecified

  3. How accurate are the heights or depths?

    Unspecified

  4. Where are the gaps in the data? What is missing?

    Start and end date/times of data

    Navigation Data (m-2a-70-sp.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197007291528000    197008022101000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (m-2a-70-sp.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197007291900000    197007291945000
    197007292015000    197007292015000
    197007292045000    197007292130000
    197007292200000    197007300030000
    197007300100000    197007300130000
    197007300200000    197007300200000
    197007300230000    197007300245000
    197007300315000    197007300700000
    197007301130000    197007302230000
    197007310145000    197007310145000
    197007310330000    197007311245000
    197007311600000    197007312100000
    197008010100000    197008010630000
    197008011000000    197008011330000
    197008011745000    197008012115000
    197008012145000    197008020200000
    197008020230000    197008020315000
    197008020345000    197008020430000
    197008020500000    197008021630000
    197008021700000    197008022015000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (m-2a-70-sp.220_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197007291800000    197007291800000
    197007291815000    197007291815000
    197007291830000    197007291830000
    197007291842000    197007291847000
    197007291900000    197007291910000
    197007291924000    197007291945000
    197007292000000    197007292000000
    197007292017000    197007292017000
    197007292030000    197007292030000
    197007292045000    197007292045000
    197007292100000    197007292100000
    197007292115000    197007292200000
    197007292230000    197007292230000
    197007292250000    197007292300000
    197007292322000    197007292330000
    197007292345000    197007292345000
    197007292357000    197007300010000
    197007300025000    197007300030000
    197007300041000    197007300100000
    197007300115000    197007300115000
    197007300130000    197007300200000
    197007300230000    197007300230000
    197007300245000    197007300245000
    197007300300000    197007300315000
    197007300330000    197007300330000
    197007300345000    197007300345000
    197007300400000    197007300415000
    197007300430000    197007300430000
    197007300445000    197007300445000
    197007300500000    197007300504000
    197007300515000    197007300515000
    197007300530000    197007300530000
    197007300545000    197007300600000
    197007300617000    197007300617000
    197007300630000    197007300645000
    197007300700000    197007300715000
    197007301130000    197007301137000
    197007301150000    197007301200000
    197007301211000    197007301211000
    197007301230000    197007301330000
    197007301345000    197007301345000
    197007301400000    197007301410000
    197007301423000    197007301500000
    197007301518000    197007301518000
    197007301530000    197007301615000
    197007301633000    197007301800000
    197007301820000    197007301900000
    197007301915000    197007301915000
    197007301930000    197007301930000
    197007301945000    197007301945000
    197007302000000    197007302030000
    197007302042000    197007302042000
    197007302105000    197007302115000
    197007302130000    197007302130000
    197007302145000    197007302145000
    197007302200000    197007302200000
    197007302215000    197007302215000
    197007302230000    197007302230000
    197007310200000    197007310200000
    197007310215000    197007310215000
    197007310230000    197007310230000
    197007310245000    197007310245000
    197007310300000    197007310315000
    197007310330000    197007310400000
    197007310415000    197007310415000
    197007310430000    197007310430000
    197007310445000    197007310445000
    197007310500000    197007310500000
    197007310513000    197007310513000
    197007310530000    197007310530000
    197007310545000    197007310545000
    197007310600000    197007310600000
    197007310612000    197007310612000
    197007310630000    197007310630000
    197007310645000    197007310645000
    197007310700000    197007310700000
    197007310715000    197007310715000
    197007310730000    197007310730000
    197007310745000    197007310745000
    197007310800000    197007310800000
    197007310815000    197007310815000
    197007310830000    197007310830000
    197007310845000    197007310845000
    197007310900000    197007310900000
    197007310912000    197007310912000
    197007310930000    197007310936000
    197007310952000    197007311000000
    197007311023000    197007311030000
    197007311045000    197007311045000
    197007311100000    197007311110000
    197007311130000    197007311140000
    197007311200000    197007311200000
    197007311215000    197007311215000
    197007311230000    197007311240000
    197007311540000    197007311540000
    197007311600000    197007311600000
    197007311615000    197007311615000
    197007311630000    197007311630000
    197007311645000    197007311645000
    197007311700000    197007311700000
    197007311715000    197007311715000
    197007311730000    197007311740000
    197007311800000    197007311800000
    197007311815000    197007311815000
    197007311830000    197007311830000
    197007311845000    197007311845000
    197007311900000    197007311900000
    197008010130000    197008010130000
    197008010145000    197008010145000
    197008010200000    197008010200000
    197008010215000    197008010215000
    197008010230000    197008010230000
    197008010245000    197008010245000
    197008010300000    197008010300000
    197008010330000    197008010330000
    197008010345000    197008010345000
    197008010400000    197008010400000
    197008010412000    197008010412000
    197008010430000    197008010430000
    197008010445000    197008010450000
    197008010505000    197008010505000
    197008010520000    197008010520000
    197008010537000    197008010537000
    197008010600000    197008010610000
    197008010630000    197008010630000
    197008011000000    197008011000000
    197008011015000    197008011015000
    197008011030000    197008011030000
    197008011050000    197008011100000
    197008011115000    197008011115000
    197008011130000    197008011130000
    197008011145000    197008011145000
    197008011200000    197008011200000
    197008011215000    197008011215000
    197008011230000    197008011230000
    197008011245000    197008011245000
    197008011300000    197008011300000
    197008011315000    197008011315000
    197008011330000    197008011330000
    197008011830000    197008011830000
    197008011845000    197008011845000
    197008011900000    197008011900000
    197008011915000    197008011915000
    197008011930000    197008011940000
    197008012000000    197008012000000
    197008012015000    197008012015000
    197008012030000    197008012030000
    197008012045000    197008012045000
    197008012100000    197008012100000
    197008012115000    197008012115000
    197008012130000    197008012130000
    197008012145000    197008012145000
    197008012200000    197008012200000
    197008012215000    197008012215000
    197008012230000    197008012230000
    197008012245000    197008012245000
    197008012300000    197008012300000
    197008012315000    197008012315000
    197008012330000    197008012330000
    197008012345000    197008012345000
    197008020000000    197008020000000
    197008020015000    197008020015000
    197008020030000    197008020030000
    197008020045000    197008020045000
    197008020100000    197008020100000
    197008020115000    197008020115000
    197008020130000    197008020140000
    197008020200000    197008020200000
    197008020215000    197008020215000
    197008020230000    197008020249000
    197008020300000    197008020300000
    197008020315000    197008020315000
    197008020330000    197008020330000
    197008020345000    197008020345000
    197008020400000    197008020400000
    197008020413000    197008020413000
    197008020430000    197008020430000
    197008020445000    197008020445000
    197008020500000    197008020500000
    197008020515000    197008020515000
    197008020530000    197008020530000
    197008020545000    197008020545000
    197008020600000    197008020600000
    197008020615000    197008020615000
    197008020630000    197008020640000
    197008020700000    197008020700000
    197008020715000    197008020725000
    197008020745000    197008020745000
    197008020800000    197008020800000
    197008020815000    197008020825000
    197008020845000    197008020845000
    197008020900000    197008020900000
    197008020915000    197008020915000
    197008020930000    197008020930000
    197008020945000    197008020945000
    197008021000000    197008021000000
    197008021015000    197008021015000
    197008021037000    197008021045000
    197008021107000    197008021130000
    197008021147000    197008021255000
    197008021308000    197008021308000
    197008021323000    197008021330000
    197008021345000    197008021345000
    197008021402000    197008021402000
    197008021415000    197008021415000
    197008021427000    197008021427000
    197008021452000    197008021500000
    197008021515000    197008021530000
    197008021630000    197008021647000
    197008021700000    197008021700000
    197008021715000    197008021730000
    197008021748000    197008021748000
    197008021800000    197008021815000
    197008021830000    197008021830000
    197008021845000    197008021845000
    197008021857000    197008021915000
    197008021933000    197008021933000
    197008021945000    197008022013000
    197008022028000    197008022028000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (m-2a-70-sp.325_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197007291530179    197007291530179
    197007291545300    197007291600239
    197007291615239    197007291615239
    197007291630179    197007291630179
    197007291645239    197007291645239
    197007291700239    197007291700239
    197007291715239    197007291715239
    197007291730119    197007291730119
    197007291745059    197007291835000
    197007291845059    197007291845059
    197007291856179    197007292333540
    197007292344420    197007292344420
    197007292355239    197007300034360
    197007300044420    197007300101420
    197007300114420    197007300129480
    197007300144540    197007300300059
    197007300312179    197007300415119
    197007300430239    197007300430239
    197007300445239    197007300530300
    197007300541119    197007300632360
    197007300645360    197007300730300
    197007300745360    197007300745360
    197007300800300    197007300800300
    197007300815239    197007300815239
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    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    

  5. How consistent are the relationships among the observations, including topology?

    Unspecified


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
Physical materials are under controlled on-site access.
If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  1. Who distributes the data set? (Distributor 1 of 1)

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

  2. What's the catalog number I need to order this data set?

    Downloadable Data M-2A-70-SP data set <http://walrus.wr.usgs.gov/infobank/m/m2a70sp/html/m-2a-70-sp.meta.html>

  3. What legal disclaimers am I supposed to read?

    Please recognize the U.S. Geological Survey (USGS) as the source of this information.
    Physical materials are under controlled on-site access.
    Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
    This information is not intended for navigational purposes.
    Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  4. How can I download or order the data?

    • Availability in digital form:

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2a70sp/html/m-2a-70-sp.nav.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2a70sp/html/m-2a-70-sp.grav.html>

Data format: ASCII Size: 0.0
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2a70sp/html/m-2a-70-sp.mag.html>

Data format: ASCII Size: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/m/m2a70sp/html/m-2a-70-sp.bath.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 29-Oct-2013
    Metadata author:
    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Metadata standard:
    FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/> (FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html>)


    Generated by mp version 2.9.13 on Tue Oct 29 13:08:32 2013