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What does this data set describe?

Title:
Geophysical data of field activity S-2-72-GA in Gulf of Alaska from 07/23/1972 to 09/23/1972
Abstract:
Geophysical data (navigation, bathymetry, gravity) of field activity S-2-72-GA in Gulf of Alaska from 07/23/1972 to 09/23/1972, <http://walrus.wr.usgs.gov/infobank/s/s272ga/html/s-2-72-ga.meta.html>.
Supplemental_Information:

Equipment Used -
navigation Decca Hi-Fix and Sea-Fix navigation
bathymetry Magnavox 606SA fathometer, Ratheon PSR, Teledyne hydrostreamer
gravity Lacoste-Romberg stable table meter
Notes -
NOAA/NOS data

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 S-2-72-GA in Gulf of Alaska from 07/23/1972 to 09/23/1972: 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: -150.11481
    East_Bounding_Coordinate: -140.81870
    North_Bounding_Coordinate: 60.28390
    South_Bounding_Coordinate: 56.25330

  3. What does it look like?

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

    Beginning_Date: 23-Jul-1972
    Ending_Date: 23-Sep-1972
    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: Gulf of Alaska
      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: 20-Dec-1999 (process 1 of 4)
    Navigation Data
    01/30/1998 clint s-2-72-ga.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    

    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/s/s272ga/grav/s-2-72-ga.160_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint s-2-72-ga.160
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Free Air Anomaly data
    
    Input was...
    01/30/1998 clint s-2-72-ga.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    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 s-2-72-ga.221_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/magred1111/magred1111.for
    Using geodetic coordinate system (Earth shape approximated by spheriod)
    with altitude 0.0 km (for sea level).
    
    Input was...
    10/31/1998  /tiger/s/s272ga/mag/s-2-72-ga.220_050
    /bear/programs/edit/automerge/automerge
    
    01/30/1998 clint s-2-72-ga.220
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited magnetics data
    
    01/30/1998 clint s-2-72-ga.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    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/s/s272ga/bath/s-2-72-ga.320_050
    /bear/programs/edit/automerge/automerge
    
    Input was...
    01/30/1998 clint s-2-72-ga.320
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Edited bathymetry data with corrected depths
    
    Input was...
    01/30/1998 clint s-2-72-ga.050
    /bear/programs/ngdc/unrefngdc/unrefngdc
    Integrated navigation (SINS) data
    
    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 (s-2-72-ga.050 [SINS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197207230415000    197208301200000
    197209060752000    197209070100000
    197209070130000    197209082210000
    197209082345000    197209091915000
    197209100050000    197209101900000
    197209110521000    197209110840000
    197209110920000    197209111900000
    197209120140000    197209130620000
    197209130712000    197209171138000
    197209171200000    197209191045000
    197209210505000    197209211030000
    197209230236000    197209230420000
    197209230458000    197209231702000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Gravity Data (s-2-72-ga.160_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197207230425000    197207230540000
    197207230800000    197207231658000
    197207231720000    197207250230000
    197207250300000    197207261110000
    197207261140000    197207270330000
    197207270510000    197207270915000
    197207271000000    197207281620000
    197207281650000    197207290952000
    197207291020000    197207310738000
    197208130300000    197208130616000
    197208130650000    197208132245000
    197208132320000    197208140750000
    197208140820000    197208142152000
    197208142220000    197208150347000
    197208150411000    197208150810000
    197208150840000    197208160950000
    197208161011000    197208161355000
    197208161421000    197208161910000
    197208162110000    197208162320000
    197208170110000    197208171740000
    197208171820000    197208172125000
    197208180130000    197208180503000
    197208180530000    197208181940000
    197208182145000    197208182350000
    197208190400000    197208190511000
    197208190540000    197208191420000
    197208250850000    197208251928000
    197208261910000    197208270354000
    197208270420000    197208271630000
    197208280020000    197208292027000
    197208292050000    197208301200000
    197209060805000    197209070100000
    197209070135000    197209082210000
    197209090000000    197209091915000
    197209100100000    197209101900000
    197209110530000    197209110840000
    197209110940000    197209111540000
    197209111606000    197209111900000
    197209120155000    197209120755000
    197209120820000    197209121840000
    197209121942000    197209130610000
    197209130715000    197209160500000
    197209160530000    197209170950000
    197209171015000    197209171138000
    197209171215000    197209171238000
    197209171315000    197209191040000
    197209210515000    197209211030000
    197209230250000    197209230420000
    197209230510000    197209230706000
    197209230730000    197209231702000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Magnetics Data (s-2-72-ga.221_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197207230740000    197207231138000
    197207231150000    197207241920000
    197207241931000    197207261110000
    197207261130000    197207262215000
    197207262226000    197207270310000
    197207270321000    197207270330000
    197207270500000    197207270915000
    197207270950000    197207272204000
    197207272220000    197207280250000
    197207280301000    197207280400000
    197207280411000    197207291430000
    197207291441000    197207291558000
    197207291610000    197207310338000
    197207310350000    197207310738000
    197208130252000    197208130616000
    197208130640000    197208131320000
    197208131331000    197208140700000
    197208140711000    197208140920000
    197208140931000    197208141018000
    197208141030000    197208141200000
    197208141211000    197208150400000
    197208150411000    197208150420000
    197208150431000    197208150650000
    197208150710000    197208150940000
    197208150951000    197208160040000
    197208160100000    197208160400000
    197208160411000    197208160630000
    197208160641000    197208161410000
    197208161421000    197208161730000
    197208161742000    197208161910000
    197208162100000    197208162320000
    197208170100000    197208171910000
    197208171931000    197208172125000
    197208180110000    197208180310000
    197208180321000    197208180540000
    197208180551000    197208180640000
    197208180651000    197208180820000
    197208180831000    197208180900000
    197208180911000    197208181610000
    197208181630000    197208181940000
    197208182138000    197208182350000
    197208190350000    197208190448000
    197208190500000    197208190500000
    197208190511000    197208191420000
    197208250831000    197208251500000
    197208251511000    197208251718000
    197208251730000    197208251928000
    197208261850000    197208261850000
    197208261901000    197208262140000
    197208262151000    197208271200000
    197208271211000    197208271630000
    197208280000000    197208281030000
    197208281041000    197208281120000
    197208281131000    197208281400000
    197208281411000    197208281620000
    197208281631000    197208281730000
    197208281741000    197208290410000
    197208290421000    197208290640000
    197208290651000    197208290920000
    197208290931000    197208291410000
    197208291421000    197208291500000
    197208291511000    197208301200000
    197209060752000    197209070100000
    197209070130000    197209082200000
    197209082345000    197209090340000
    197209090351000    197209091915000
    197209100050000    197209101900000
    197209110521000    197209110840000
    197209110920000    197209111248000
    197209111300000    197209111520000
    197209111531000    197209111900000
    197209120140000    197209121900000
    197209121911000    197209122050000
    197209122102000    197209122248000
    197209122300000    197209130240000
    197209130252000    197209130338000
    197209130350000    197209130620000
    197209130712000    197209141238000
    197209141250000    197209141330000
    197209141342000    197209141348000
    197209141400000    197209141558000
    197209141610000    197209160340000
    197209160352000    197209160352000
    197209160410000    197209160410000
    197209160421000    197209160430000
    197209160441000    197209160500000
    197209160520000    197209160800000
    197209160812000    197209160930000
    197209160945000    197209160945000
    197209161000000    197209161000000
    197209161015000    197209161015000
    197209161030000    197209161030000
    197209161045000    197209161045000
    197209161101000    197209161101000
    197209161115000    197209161115000
    197209161130000    197209161130000
    197209161144000    197209161144000
    197209161156000    197209161204000
    197209161215000    197209161215000
    197209161230000    197209161230000
    197209161245000    197209161245000
    197209161300000    197209161300000
    197209161315000    197209161315000
    197209161330000    197209161330000
    197209161345000    197209161400000
    197209161415000    197209161415000
    197209161430000    197209161430000
    197209161445000    197209170028000
    197209170042000    197209170042000
    197209170055000    197209170400000
    197209170415000    197209170415000
    197209170430000    197209170430000
    197209170446000    197209170446000
    197209170500000    197209170515000
    197209170530000    197209170540000
    197209170600000    197209170600000
    197209170615000    197209170615000
    197209170630000    197209170630000
    197209170645000    197209170645000
    197209170700000    197209170705000
    197209170718000    197209170718000
    197209170732000    197209170745000
    197209170800000    197209170830000
    197209170845000    197209170845000
    197209170902000    197209170918000
    197209170930000    197209170930000
    197209170945000    197209171000000
    197209171015000    197209171015000
    197209171030000    197209171030000
    197209171048000    197209171048000
    197209171100000    197209171100000
    197209171130000    197209171138000
    197209171200000    197209171200000
    197209171215000    197209171215000
    197209171230000    197209171238000
    197209171258000    197209171258000
    197209171315000    197209171330000
    197209171345000    197209171345000
    197209171400000    197209171400000
    197209171415000    197209171415000
    197209171430000    197209171430000
    197209171445000    197209171448000
    197209171500000    197209171515000
    197209171530000    197209190744000
    197209190805000    197209191045000
    197209210507000    197209211030000
    197209230236000    197209230420000
    197209230458000    197209230526000
    197209230540000    197209230618000
    197209230630000    197209230706000
    197209230720000    197209230750000
    197209230802000    197209230948000
    197209231000000    197209231038000
    197209231050000    197209231228000
    197209231240000    197209231702000
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    Bathymetry Data (s-2-72-ga.320_050)
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    197207230415000    197207230540000
    197207230741000    197207231138000
    197207231150000    197207241920000
    197207241931000    197207261110000
    197207261130000    197207262215000
    197207262226000    197207270310000
    197207270321000    197207270330000
    197207270500000    197207270915000
    197207270950000    197207280250000
    197207280301000    197207280400000
    197207280411000    197207280700000
    197207280712000    197207291430000
    197207291441000    197207291558000
    197207291610000    197207310338000
    197207310350000    197207310738000
    197208130252000    197208130616000
    197208130640000    197208131320000
    197208131340000    197208140700000
    197208140711000    197208140920000
    197208140931000    197208141018000
    197208141030000    197208141200000
    197208141211000    197208150400000
    197208150411000    197208150420000
    197208150431000    197208150830000
    197208150850000    197208150940000
    197208150951000    197208160400000
    197208160411000    197208160630000
    197208160641000    197208161410000
    197208161421000    197208161730000
    197208161742000    197208161910000
    197208162100000    197208162320000
    197208170100000    197208170915000
    197208170930000    197208171910000
    197208171921000    197208172125000
    197208180120000    197208180310000
    197208180321000    197208180540000
    197208180551000    197208180640000
    197208180651000    197208180820000
    197208180831000    197208180900000
    197208180911000    197208181940000
    197208182138000    197208182350000
    197208190350000    197208190448000
    197208190500000    197208190500000
    197208190511000    197208191420000
    197208250831000    197208251500000
    197208251511000    197208251718000
    197208251730000    197208251800000
    197208251820000    197208251830000
    197208261850000    197208261850000
    197208261901000    197208262140000
    197208262151000    197208271630000
    197208280000000    197208281030000
    197208281041000    197208281120000
    197208281131000    197208281400000
    197208281411000    197208281620000
    197208281631000    197208281730000
    197208281800000    197208290400000
    197208290421000    197208290421000
    197208290440000    197208290640000
    197208290651000    197208290920000
    197208290931000    197208291410000
    197208291421000    197208291500000
    197208291511000    197208291650000
    197208291710000    197208292210000
    197208292230000    197208292300000
    197208292340000    197208292340000
    197208300000000    197208300000000
    197208300030000    197208300940000
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  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 S-2-72-GA data set <http://walrus.wr.usgs.gov/infobank/s/s272ga/html/s-2-72-ga.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: 0.3
Network links: <http://walrus.wr.usgs.gov/infobank/s/s272ga/html/s-2-72-ga.nav.html>

Data format: ASCII Size: 0.6
Network links: <http://walrus.wr.usgs.gov/infobank/s/s272ga/html/s-2-72-ga.grav.html>

Data format: ASCII Size: 0.4
Network links: <http://walrus.wr.usgs.gov/infobank/s/s272ga/html/s-2-72-ga.mag.html>

Data format: ASCII Size: 0.5
Network links: <http://walrus.wr.usgs.gov/infobank/s/s272ga/html/s-2-72-ga.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 15:18:57 2013