<?xml version="1.0" encoding="UTF-8"?>
<!-- 
License: CC By 4.0 (https://creativecommons.org/licenses/by/4.0/)
Copyright: Royal Observatory of Belgium (please acknowledge us and/or cite doi:10.24414/ROB-GNSS-M3G)
-->
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  <geo:siteLog gml:id="grcb00bel_20240904">
    <geo:formInformation>
      <geo:FormInformation gml:id="form-info">
        <geo:preparedBy>gnss_time (time_lab@oma.be)</geo:preparedBy>
        <geo:datePrepared>2024-09-04</geo:datePrepared>
        <geo:reportType>UPDATE</geo:reportType>
      </geo:FormInformation>
    </geo:formInformation>
    <geo:siteIdentification>
      <geo:SiteIdentification gml:id="site-identification">
        <geo:siteName>Brussels</geo:siteName>
        <geo:fourCharacterID>GRCB</geo:fourCharacterID>
        <geo:monumentNumber>0</geo:monumentNumber>
        <geo:receiverNumber>0</geo:receiverNumber>
        <geo:monumentInscription></geo:monumentInscription>
        <geo:iersDOMESNumber>13101M013</geo:iersDOMESNumber>
        <geo:cdpNumber></geo:cdpNumber>
        <geo:monumentDescription codeSpace="urn:ga-gov-au:monument-description-type"><![CDATA[STEEL MAST]]></geo:monumentDescription>
        <geo:heightOfTheMonument>5</geo:heightOfTheMonument>
        <geo:monumentFoundation></geo:monumentFoundation>
        <geo:markerDescription>BRASS NAIL</geo:markerDescription>
        <geo:dateInstalled>2017-12-07T14:00:00Z</geo:dateInstalled>
        <geo:geologicCharacteristic codeSpace="urn:ga-gov-au:geologic-characteristic-type"><![CDATA[SAND]]></geo:geologicCharacteristic>
        <geo:bedrockType>SEDIMENTARY</geo:bedrockType>
        <geo:bedrockCondition>FRESH</geo:bedrockCondition>
        <geo:fractureSpacing>0</geo:fractureSpacing>
        <geo:faultZonesNearby codeSpace="urn:ga-gov-au:fault-zones-type"><![CDATA[NO]]></geo:faultZonesNearby>
        <geo:distance-Activity></geo:distance-Activity>
        <geo:notes><![CDATA[]]></geo:notes>
      </geo:SiteIdentification>
    </geo:siteIdentification>
    <geo:siteLocation>
      <geo:SiteLocation gml:id="site-location">
        <geo:city>Brussels</geo:city>
        <geo:state>Brabant</geo:state>
        <geo:countryCodeISO codeSpace="urn:gnss-metadata.eu:country-code" codeList="https://gnss-metadata.eu/geodesyml/codelists/country-codes-codelist.xml#GeodesyML_CountryCode" codeListValue="BEL"><![CDATA[BEL]]></geo:countryCodeISO>
        <geo:tectonicPlate codeSpace="urn:ga-gov-au:plate-type"><![CDATA[EURASIAN]]></geo:tectonicPlate>
        <geo:approximatePositionITRF>
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        </geo:approximatePositionITRF>
        <geo:notes></geo:notes>
      </geo:SiteLocation>
    </geo:siteLocation>
    <geo:gnssReceiver>
      <geo:GnssReceiver gml:id="gnss-receiver-64b00bc5a5df6">
        <geo:notes></geo:notes>
        <geo:manufacturerSerialNumber>4701221</geo:manufacturerSerialNumber>
        <geo:igsModelCode codeSpace="urn:gnss-metadata.eu:receiver-type" codeList="https://gnss-metadata.eu/geodesyml/codelists/antenna-receiver-codelists.xml#GeodesyML_GNSSReceiverTypeCode" codeListValue="SEPT POLARX5TR"><![CDATA[SEPT POLARX5TR]]></geo:igsModelCode>
        <geo:satelliteSystem><![CDATA[GPS]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[GLO]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[GAL]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[BDS]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[IRNSS]]></geo:satelliteSystem>
        <geo:firmwareVersion><![CDATA[5.1.2]]></geo:firmwareVersion>
        <geo:elevationCutoffSetting xsi:nil="false">0.0</geo:elevationCutoffSetting>
        <geo:dateInstalled><![CDATA[2017-12-11T07:00:00Z]]></geo:dateInstalled>
        <geo:dateRemoved><![CDATA[2018-10-23T10:45:00Z]]></geo:dateRemoved>
        <geo:temperatureStabilization xsi:nil="false">0.2</geo:temperatureStabilization>
      </geo:GnssReceiver>
      <geo:dateInserted>2023-07-13</geo:dateInserted>
      <geo:dateDeleted></geo:dateDeleted>
    </geo:gnssReceiver>
    <geo:gnssReceiver>
      <geo:GnssReceiver gml:id="gnss-receiver-64b00bc5a7907">
        <geo:notes></geo:notes>
        <geo:manufacturerSerialNumber>4701221</geo:manufacturerSerialNumber>
        <geo:igsModelCode codeSpace="urn:gnss-metadata.eu:receiver-type" codeList="https://gnss-metadata.eu/geodesyml/codelists/antenna-receiver-codelists.xml#GeodesyML_GNSSReceiverTypeCode" codeListValue="SEPT POLARX5TR"><![CDATA[SEPT POLARX5TR]]></geo:igsModelCode>
        <geo:satelliteSystem><![CDATA[GPS]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[GLO]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[GAL]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[BDS]]></geo:satelliteSystem>
        <geo:satelliteSystem><![CDATA[IRNSS]]></geo:satelliteSystem>
        <geo:firmwareVersion><![CDATA[5.2.0]]></geo:firmwareVersion>
        <geo:elevationCutoffSetting xsi:nil="false">0.0</geo:elevationCutoffSetting>
        <geo:dateInstalled><![CDATA[2018-10-23T10:45:00Z]]></geo:dateInstalled>
        <geo:dateRemoved><![CDATA[]]></geo:dateRemoved>
        <geo:temperatureStabilization xsi:nil="false">0.2</geo:temperatureStabilization>
      </geo:GnssReceiver>
      <geo:dateInserted>2023-07-13</geo:dateInserted>
      <geo:dateDeleted></geo:dateDeleted>
    </geo:gnssReceiver>
    <geo:gnssAntenna>
      <geo:GnssAntenna gml:id="gnss-antenna-66d85e9a97cd7">
        <geo:notes>Cable was calibrated by ORB: Delay=95.8 ns</geo:notes>
        <geo:manufacturerSerialNumber>20220022</geo:manufacturerSerialNumber>
        <geo:igsModelCode codeSpace="urn:gnss-metadata.eu:antenna-type" codeList="https://gnss-metadata.eu/geodesyml/codelists/antenna-receiver-codelists.xml#GeodesyML_GNSSAntennaTypeCode" codeListValue="LEIAR20         LEIM"><![CDATA[LEIAR20         LEIM]]></geo:igsModelCode>
        <geo:antennaReferencePoint codeSpace="urn:ga-gov-au:antenna-reference-point-type"><![CDATA[BAM]]></geo:antennaReferencePoint>
        <geo:marker-arpUpEcc.>0.0</geo:marker-arpUpEcc.>
        <geo:marker-arpNorthEcc.>0.0</geo:marker-arpNorthEcc.>
        <geo:marker-arpEastEcc.>0.0</geo:marker-arpEastEcc.>
        <geo:alignmentFromTrueNorth xsi:nil="false">0.0</geo:alignmentFromTrueNorth>
        <geo:antennaRadomeType codeSpace="urn:igs-org:gnss-radome-model-code"><![CDATA[LEIM]]></geo:antennaRadomeType>
        <geo:radomeSerialNumber><![CDATA[]]></geo:radomeSerialNumber>
        <geo:antennaCableType><![CDATA[SPUMA 400]]></geo:antennaCableType>
        <geo:antennaCableLength xsi:nil="false">24.42</geo:antennaCableLength>
        <geo:dateInstalled><![CDATA[2017-12-07T10:00:00Z]]></geo:dateInstalled>
        <geo:dateRemoved><![CDATA[]]></geo:dateRemoved>
      </geo:GnssAntenna>
      <geo:dateInserted>2024-09-04T13:20:00Z</geo:dateInserted>
      <geo:dateDeleted></geo:dateDeleted>
    </geo:gnssAntenna>
    <geo:frequencyStandard>
      <geo:FrequencyStandard gml:id="frequency-66d85e9a97d25">
        <geo:standardType codeSpace="urn:ga-gov-au:frequency-standard-type"><![CDATA[EXTERNAL CH1-75A MASER]]></geo:standardType>
        <geo:inputFrequency>10.0</geo:inputFrequency>
        <gml:validTime>
          <gml:TimePeriod gml:id="frequency-66d85e9a97d25-time">
            <gml:beginPosition><![CDATA[2017-12-12T10:00:00Z]]></gml:beginPosition>
            <gml:endPosition><![CDATA[2023-01-23T17:00:00Z]]></gml:endPosition>
          </gml:TimePeriod>
        </gml:validTime>
        <geo:notes><![CDATA[The 5MHz output of the CH1-75A (maser3) passes
an amplifier HP5087A and then is used as input
to a SpectraTime femtoStepper. The output of
this phase stepper (equal to UTC(ORB)) is used
as an input to the receiver.
REFDLY = 70.044 ns]]></geo:notes>
      </geo:FrequencyStandard>
      <geo:dateInserted>2024-09-04T13:20:00Z</geo:dateInserted>
      <geo:dateDeleted></geo:dateDeleted>
    </geo:frequencyStandard>
    <geo:frequencyStandard>
      <geo:FrequencyStandard gml:id="frequency-66d8522f18e91">
        <geo:standardType codeSpace="urn:ga-gov-au:frequency-standard-type"><![CDATA[EXTERNAL iMaser 3000 MASER]]></geo:standardType>
        <geo:inputFrequency>10.0</geo:inputFrequency>
        <gml:validTime>
          <gml:TimePeriod gml:id="frequency-66d8522f18e91-time">
            <gml:beginPosition><![CDATA[2023-01-23T17:00:00Z]]></gml:beginPosition>
            <gml:endPosition><![CDATA[]]></gml:endPosition>
          </gml:TimePeriod>
        </gml:validTime>
        <geo:notes><![CDATA[The 10MHz output of the iMaser 3000 (maser4) is used as input to a SpectraTime femtoStepper. The output of
this phase stepper (equal to UTC(ORB)) is used
as an input to the receiver.
REFDLY = 70.6 ns]]></geo:notes>
      </geo:FrequencyStandard>
      <geo:dateInserted>2024-09-04T12:27:00Z</geo:dateInserted>
      <geo:dateDeleted></geo:dateDeleted>
    </geo:frequencyStandard>
    <geo:collocationInformation>
      <geo:CollocationInformation gml:id="coll-64b00bc5abeda">
        <geo:instrumentationType codeSpace="urn:ga-gov-au:instrumentation-type"><![CDATA[SEISMOMETER]]></geo:instrumentationType>
        <geo:status codeSpace="urn:ga-gov-au:status-type"><![CDATA[PERMANENT]]></geo:status>
        <gml:validTime>
          <gml:TimePeriod gml:id="coll-64b00bc5abeda-time">
            <gml:beginPosition><![CDATA[1993-10-20]]></gml:beginPosition>
            <gml:endPosition><![CDATA[]]></gml:endPosition>
          </gml:TimePeriod>
        </gml:validTime>
        <geo:notes><![CDATA[]]></geo:notes>
      </geo:CollocationInformation>
      <geo:dateInserted>2023-07-13</geo:dateInserted>
      <geo:dateDeleted></geo:dateDeleted>
    </geo:collocationInformation>
    <geo:siteOwner gml:id="siteOwner">
      <gml:identifier codeSpace="https://gnss-metadata.eu/"><![CDATA[agency_6486e8bd0be35b2c770efe21_648c522600c21e86aa0f546d]]></gml:identifier>
      <gml:name><![CDATA[ROB]]></gml:name>
      <gmd:MD_SecurityConstraints>
        <gmd:classification gco:nilReason="Missing"/>
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          <gco:CharacterString><![CDATA[Royal Observatory of Belgium]]></gco:CharacterString>
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                  <gco:CharacterString><![CDATA[Avenue Circulaire 3, ]]></gco:CharacterString>
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                <gmd:city>
                  <gco:CharacterString><![CDATA[Uccle]]></gco:CharacterString>
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                  <gco:CharacterString><![CDATA[1180]]></gco:CharacterString>
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                  <gco:CharacterString><![CDATA[Belgium]]></gco:CharacterString>
                </gmd:country>
                <gmd:electronicMailAddress>
                  <gco:CharacterString><![CDATA[time_lab@oma.be]]></gco:CharacterString>
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            </gmd:address>
          </gmd:CI_Contact>
        </gmd:contactInfo>
        <gmd:role/>
      </gmd:CI_ResponsibleParty>
    </geo:siteOwner>
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      <gml:name><![CDATA[ROB]]></gml:name>
      <gmd:MD_SecurityConstraints>
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          <gco:CharacterString><![CDATA[Royal Observatory of Belgium]]></gco:CharacterString>
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            <gmd:address>
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                <gmd:deliveryPoint>
                  <gco:CharacterString><![CDATA[Avenue Circulaire 3, ]]></gco:CharacterString>
                </gmd:deliveryPoint>
                <gmd:city>
                  <gco:CharacterString><![CDATA[Uccle]]></gco:CharacterString>
                </gmd:city>
                <gmd:postalCode>
                  <gco:CharacterString><![CDATA[1180]]></gco:CharacterString>
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                <gmd:country>
                  <gco:CharacterString><![CDATA[Belgium]]></gco:CharacterString>
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                <gmd:electronicMailAddress>
                  <gco:CharacterString><![CDATA[time_lab@oma.be]]></gco:CharacterString>
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        <gmd:role/>
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    </geo:siteMetadataCustodian>
    <geo:moreInformation>
      <geo:MoreInformation gml:id="more-info">
        <geo:dataCenter><![CDATA[ROB]]></geo:dataCenter>
        <geo:urlForMoreInformation><![CDATA[]]></geo:urlForMoreInformation>
        <geo:siteMap><![CDATA[]]></geo:siteMap>
        <geo:siteDiagram><![CDATA[]]></geo:siteDiagram>
        <geo:horizonMask><![CDATA[]]></geo:horizonMask>
        <geo:monumentDescription><![CDATA[]]></geo:monumentDescription>
        <geo:sitePictures><![CDATA[]]></geo:sitePictures>
        <geo:notes><![CDATA[]]></geo:notes>
        <geo:antennaGraphicsWithDimensions><![CDATA[(insert text graphic from file antenna.gra)]]></geo:antennaGraphicsWithDimensions>
        <geo:insertTextGraphicFromAntenna><![CDATA[(insert text graphic from file antenna.gra)]]></geo:insertTextGraphicFromAntenna>
        <geo:DOI codeSpace="urn:ga-gov-au:self.moreInformation-type"/>
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    </geo:moreInformation>
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