<?xml version='1.0' encoding='utf-8'?>
<?xml-model href="https://pds.nasa.gov/pds4/pds/v1/PDS4_PDS_1M00.sch" schematypens="http://purl.oclc.org/dsdl/schematron"?>
<Product_Context xmlns="http://pds.nasa.gov/pds4/pds/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_1M00.xsd">
  <Identification_Area>
    <logical_identifier>urn:nasa:pds:context:telescope:usuda.dss48_64m</logical_identifier>
    <version_id>1.2</version_id>
    <title>Usuda 64-m Radio Telescope (as a DSN Antenna)</title>
    <information_model_version>1.22.0.0</information_model_version>
    <product_class>Product_Context</product_class>
    <Modification_History>
      <Modification_Detail>
        <modification_date>2026-07-07</modification_date>
        <version_id>1.2</version_id>
        <description>Removed duplicate Internal_Reference entries from Reference_List.</description>
      </Modification_Detail>
      <Modification_Detail>
        <modification_date>2025-01-07</modification_date>
        <version_id>1.1</version_id>
        <description>Updated schema version. Adding missing "telescope" references.</description>
      </Modification_Detail>
      <Modification_Detail>
        <modification_date>2024-05-19</modification_date>
        <version_id>1.0</version_id>
        <description>
                    Original context file for the 64-m radio telescope at the Deep Space Center
                    near Saku, Nagano, Japan.  When used as part of the NASA Deep SPACE Network,
                    NASA assigns Usuda the DSS-48 identifier.
                </description>
      </Modification_Detail>
    </Modification_History>
  </Identification_Area>
  <Reference_List>
    <Internal_Reference>
      <lid_reference>urn:nasa:pds:context:facility:observatory.dsn</lid_reference>
      <reference_type>telescope_to_facility</reference_type>
    </Internal_Reference>
    <External_Reference>
      <reference_text>https://global.jaxa.jp/about/centers/udsc/index.html</reference_text>
      <description>
                An overview of the Usuda Deep Space Center, which is operated by the Institute of Space and 
                Astronautical Science. The overview is contemporary -- that is, ca. 2024.
            </description>
    </External_Reference>
  </Reference_List>
  <Telescope>
    <aperture unit="m">64</aperture>
    <telescope_longitude unit="deg">138.362222</telescope_longitude>
    <telescope_latitude unit="deg">36.133056</telescope_latitude>
    <telescope_altitude unit="m">1456</telescope_altitude>
    <coordinate_source>WGS84</coordinate_source>
    <description>The Usuda 64-m Radio Telescope, originally used as a Deep Space Network (DSN) antenna by JAXA in Japan, is a powerful radio dish used for spacecraft communication and deep space research, including radar and radio science.</description>
  </Telescope>
</Product_Context>
