<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1O00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<?xml-model href="https://pds.nasa.gov/pds4/mission/phoenix/v1/PDS4_PHOENIX_1O00_1000.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>

<Product_Observational xmlns="http://pds.nasa.gov/pds4/pds/v1" 
    xmlns:phoenix="http://pds.nasa.gov/pds4/mission/phoenix/v1" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://pds.nasa.gov/pds4/pds/v1 https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1O00.xsd     http://pds.nasa.gov/pds4/mission/phoenix/v1 https://pds.nasa.gov/pds4/mission/phoenix/v1/PDS4_PHOENIX_1O00_1000.xsd">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:phx_meca:data_wcl:ws087c0ise__00___1a220000w0</logical_identifier>
    <version_id>1.0</version_id>
    <title>Phoenix MECA WCL Data: ws087c0ise__00___1a220000w0</title>
    <information_model_version>1.24.0.0</information_model_version>
    <product_class>Product_Observational</product_class>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2025-11-25</modification_date>
        <version_id>1.0</version_id>
        <description>Initial version.</description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Observation_Area>
    <Time_Coordinates>
      <start_date_time>2008-08-23T01:44:49.682Z</start_date_time>
      <stop_date_time>2008-08-23T10:25:04.773Z</stop_date_time>
    </Time_Coordinates>
    <Investigation_Area>
      <name>Mars Phoenix</name>
      <type>Mission</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:investigation:mission.phoenix</lid_reference>
        <reference_type>data_to_investigation</reference_type>
      </Internal_Reference>
    </Investigation_Area>
    <Observing_System>
      <name>Phoenix MECA WCL</name>
      <Observing_System_Component>
        <name>The Phoenix Lander</name>
        <type>Host</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument_host:spacecraft.phx</lid_reference>
          <reference_type>is_instrument_host</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
      <Observing_System_Component>
        <name>Phoenix Lander Microscopy, Electrochemistry, and Conductivity Analyzer Wet Chemistry Laboratory</name>
        <type>Instrument</type>
        <Internal_Reference>
          <lid_reference>urn:nasa:pds:context:instrument:meca_wcl.phx</lid_reference>
          <reference_type>is_instrument</reference_type>
        </Internal_Reference>
      </Observing_System_Component>
    </Observing_System>
    <Target_Identification>
      <name>Mars</name>
      <type>Planet</type>
      <Internal_Reference>
        <lid_reference>urn:nasa:pds:context:target:planet.mars</lid_reference>
        <reference_type>data_to_target</reference_type>
      </Internal_Reference>
    </Target_Identification>
    <Mission_Area>
      <phoenix:Phoenix_Parameters>
        <phoenix:Observation_Information>
          <phoenix:mission_phase_name>PRIMARY MISSION</phoenix:mission_phase_name>
          <phoenix:product_type>MECA_WCL_ISE</phoenix:product_type>
          <phoenix:product_version_id>V1.0</phoenix:product_version_id>
          <phoenix:spacecraft_clock_start>903923170.408</phoenix:spacecraft_clock_start>
          <phoenix:spacecraft_clock_stop>903954385.448</phoenix:spacecraft_clock_stop>
          <phoenix:local_true_solar_time>09:40:23</phoenix:local_true_solar_time>
          <phoenix:sol_number>87</phoenix:sol_number>
          <phoenix:ops_token>16#1A220000#</phoenix:ops_token>
          <phoenix:ops_token_activity>16#00001A22#</phoenix:ops_token_activity>
          <phoenix:ops_token_payload>16#00000000#</phoenix:ops_token_payload>
          <phoenix:ops_token_command>16#00000000#</phoenix:ops_token_command>
          <phoenix:instument_mode_id>ISES</phoenix:instument_mode_id>
        </phoenix:Observation_Information>
      </phoenix:Phoenix_Parameters>
    </Mission_Area>
  </Observation_Area>
  <Reference_List>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:phx_meca:document:meca_rdr_sis</lid_reference>
      <reference_type>data_to_document</reference_type>
    </Internal_Reference>
  </Reference_List>
  <File_Area_Observational>
    <File>
      <file_name>ws087c0ise__00___1a220000w0.tab</file_name>
      <creation_date_time>2008-12-20T00:14:13.663</creation_date_time>
    </File>
    <Table_Character>
      <name>WCL_HEADER_TABLE</name>
      <offset unit="byte">198</offset>
      <records>13</records>
      <description>Two column ISE header table with 93 bytes of
                data followed by 105 spare bytes, the last 
                two of which are the CR/LF characters.</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <Record_Character>
        <fields>2</fields>
        <groups>0</groups>
        <record_length unit="byte">198</record_length>
        <Field_Character>
          <name>HEADER FIELD NAME</name>
          <field_number>1</field_number>
          <field_location unit="byte">2</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">25</field_length>
        </Field_Character>
        <Field_Character>
          <name>HEADER FIELD VALUE</name>
          <field_number>2</field_number>
          <field_location unit="byte">30</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">60</field_length>
        </Field_Character>
      </Record_Character>
    </Table_Character>
    <Table_Character>
      <name>WCL_EVENT_TABLE</name>
      <offset unit="byte">3168</offset>
      <records>1</records>
      <description>Three column ISE events table with 149 bytes 
                of data followed by 49 spare bytes, the last 
                two of which are the CR/LF characters.</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <Record_Character>
        <fields>3</fields>
        <groups>0</groups>
        <record_length unit="byte">198</record_length>
        <Field_Character>
          <name>EVENT_NAME</name>
          <field_number>1</field_number>
          <field_location unit="byte">2</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">20</field_length>
          <description>Name of event - solution dispense,
                        drawer open, drawer close, 
                        reagent release.</description>
        </Field_Character>
        <Field_Character>
          <name>CMD_TIME</name>
          <field_number>2</field_number>
          <field_location unit="byte">24</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">14</field_length>
          <description>SCLK time the event was commanded by 
                        Phoenix.</description>
          <Special_Constants>
            <missing_constant>99999999999</missing_constant>
          </Special_Constants>
        </Field_Character>
        <Field_Character>
          <name>EVENT_NOTES</name>
          <field_number>3</field_number>
          <field_location unit="byte">40</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">108</field_length>
          <description>Description of the event.</description>
        </Field_Character>
      </Record_Character>
    </Table_Character>
    <Table_Character>
      <name>WCL_DATA_HEADER_TABLE</name>
      <offset unit="byte">3762</offset>
      <records>1</records>
      <description>Sixteen column ISE header table.</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <Record_Character>
        <fields>16</fields>
        <groups>0</groups>
        <record_length unit="byte">198</record_length>
        <Field_Character>
          <name>TIME_HEADER</name>
          <field_number>1</field_number>
          <field_location unit="byte">2</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">4</field_length>
        </Field_Character>
        <Field_Character>
          <name>Li_a_HEADER</name>
          <field_number>2</field_number>
          <field_location unit="byte">9</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">4</field_length>
        </Field_Character>
        <Field_Character>
          <name>Li_b_HEADER</name>
          <field_number>3</field_number>
          <field_location unit="byte">16</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">4</field_length>
        </Field_Character>
        <Field_Character>
          <name>pH_a_HEADER</name>
          <field_number>4</field_number>
          <field_location unit="byte">23</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">4</field_length>
        </Field_Character>
        <Field_Character>
          <name>pH_b_HEADER</name>
          <field_number>5</field_number>
          <field_location unit="byte">30</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">4</field_length>
        </Field_Character>
        <Field_Character>
          <name>pH_irid_HEADER</name>
          <field_number>6</field_number>
          <field_location unit="byte">37</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">7</field_length>
        </Field_Character>
        <Field_Character>
          <name>Na_HEADER</name>
          <field_number>7</field_number>
          <field_location unit="byte">47</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">2</field_length>
        </Field_Character>
        <Field_Character>
          <name>K_HEADER</name>
          <field_number>8</field_number>
          <field_location unit="byte">52</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">1</field_length>
        </Field_Character>
        <Field_Character>
          <name>NH4_HEADER</name>
          <field_number>9</field_number>
          <field_location unit="byte">56</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">3</field_length>
        </Field_Character>
        <Field_Character>
          <name>Ca_HEADER</name>
          <field_number>10</field_number>
          <field_location unit="byte">62</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">2</field_length>
        </Field_Character>
        <Field_Character>
          <name>Mg_HEADER</name>
          <field_number>11</field_number>
          <field_location unit="byte">67</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">2</field_length>
        </Field_Character>
        <Field_Character>
          <name>Ba_HEADER</name>
          <field_number>12</field_number>
          <field_location unit="byte">72</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">2</field_length>
        </Field_Character>
        <Field_Character>
          <name>Cl_HEADER</name>
          <field_number>13</field_number>
          <field_location unit="byte">77</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">2</field_length>
        </Field_Character>
        <Field_Character>
          <name>ClO4_HEADER</name>
          <field_number>14</field_number>
          <field_location unit="byte">82</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">4</field_length>
        </Field_Character>
        <Field_Character>
          <name>Br_HEADER</name>
          <field_number>15</field_number>
          <field_location unit="byte">89</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">2</field_length>
        </Field_Character>
        <Field_Character>
          <name>I_HEADER</name>
          <field_number>16</field_number>
          <field_location unit="byte">94</field_location>
          <data_type>ASCII_String</data_type>
          <field_length unit="byte">1</field_length>
        </Field_Character>
      </Record_Character>
    </Table_Character>
    <Table_Character>
      <name>WCL_DATA_TABLE</name>
      <offset unit="byte">4356</offset>
      <records>1988</records>
      <description>Sixteen column ISE data table.</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
      <Record_Character>
        <fields>16</fields>
        <groups>0</groups>
        <record_length unit="byte">198</record_length>
        <Field_Character>
          <name>TIME</name>
          <field_number>1</field_number>
          <field_location unit="byte">1</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">14</field_length>
          <description>series of measurement SCLK read times.</description>
        </Field_Character>
        <Field_Character>
          <name>Li_a</name>
          <field_number>2</field_number>
          <field_location unit="byte">16</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of lithium electrode 
                        potentials (1 of 2).</description>
        </Field_Character>
        <Field_Character>
          <name>Li_b</name>
          <field_number>3</field_number>
          <field_location unit="byte">28</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of lithium electrode 
                        potentials (2 of 2).</description>
        </Field_Character>
        <Field_Character>
          <name>pH_a</name>
          <field_number>4</field_number>
          <field_location unit="byte">40</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of polymer pH electrode 
                        potentials (1 of 2).</description>
        </Field_Character>
        <Field_Character>
          <name>pH_b</name>
          <field_number>5</field_number>
          <field_location unit="byte">52</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of polymer pH electrode 
                        potentials (2 of 2).</description>
        </Field_Character>
        <Field_Character>
          <name>pH_irid</name>
          <field_number>6</field_number>
          <field_location unit="byte">64</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of iridium pH electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>Na</name>
          <field_number>7</field_number>
          <field_location unit="byte">76</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of sodium electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>K</name>
          <field_number>8</field_number>
          <field_location unit="byte">88</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of potassium electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>NH4</name>
          <field_number>9</field_number>
          <field_location unit="byte">100</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of ammonium electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>Ca</name>
          <field_number>10</field_number>
          <field_location unit="byte">112</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of calcium electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>Mg</name>
          <field_number>11</field_number>
          <field_location unit="byte">124</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of magnesium electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>Ba</name>
          <field_number>12</field_number>
          <field_location unit="byte">136</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of barium electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>Cl</name>
          <field_number>13</field_number>
          <field_location unit="byte">148</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of chloride electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>ClO4</name>
          <field_number>14</field_number>
          <field_location unit="byte">160</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of perchlorate electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>Br</name>
          <field_number>15</field_number>
          <field_location unit="byte">172</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of bromide electrode potentials.</description>
        </Field_Character>
        <Field_Character>
          <name>I</name>
          <field_number>16</field_number>
          <field_location unit="byte">184</field_location>
          <data_type>ASCII_Real</data_type>
          <field_length unit="byte">11</field_length>
          <description>series of iodide electrode potentials.</description>
        </Field_Character>
      </Record_Character>
    </Table_Character>
  </File_Area_Observational>
  <File_Area_Observational_Supplemental>
    <File>
      <file_name>ws087c0ise__00___1a220000w0.lbl</file_name>
    </File>
    <Stream_Text>
      <offset unit="byte">0</offset>
      <parsing_standard_id>PDS3</parsing_standard_id>
      <description>PDS3 label</description>
      <record_delimiter>Carriage-Return Line-Feed</record_delimiter>
    </Stream_Text>
  </File_Area_Observational_Supplemental>
</Product_Observational>
