@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/4e096352-742f-4ae5-9fd3-52f2d82391c1> a dcat:Dataset ;
    dct:description "&lt;p&gt;Every one of the future exploration architectures being considered by NASA have, at their core, the need to rendezvous and dock with other vehicles or bodies.&amp;nbsp; Future manned vehicles need to be able to do so with both cooperative and uncooperative vehicles and objects.&amp;nbsp; To this end, the sensors being considered are all optical-based.&amp;nbsp; In fact, passive sensors, such as IR cameras and visual cameras, are at the heart of any exploration architecture.&amp;nbsp; There is a need for the onboard systems to be able to use the images provided by these sensors to rendezvous and dock/capture these objects.&amp;nbsp; Therefore, this project will develop this capability to operate around a variety of objects, without a priori knowledge of their geometry.&amp;nbsp; In particular, a technology called &amp;lsquo;optical flow&amp;rsquo; or &amp;lsquo;visual odometry&amp;rsquo; (VO), will be harnessed to develop a robust on-board capability using passive sensors; of course, if active sensors are available, they will be used as well. In fact, we will also apply this technique to navigating around a cratered object (such as an asteroid). This project will enhance the Agency&amp;rsquo;s ability to operate at distant locations, without the need for ground intervention.&lt;/p&gt;&lt;p&gt;To date, all of the on-board navigation development performed has focused on either Low Earth Orbit (LEO) or Low Lunar Orbit (LLO).&amp;nbsp; We seek to advance deep-space navigation technology by focusing this Internal Research and Development (IRAD) upon rendezvous and navigation in a weak gravity environment, either at Lagrangian point 2 (L2) or around an asteroid.&amp;nbsp; Of course, this will apply to any destinations that have a strong gravity field as well.&amp;nbsp; As well, the technology developed in this Internal Research and Development will apply to rendezvousing with vehicles such as ISS.&amp;nbsp; We choose to focus our IRAD effort on the navigation algorithms and software for the ARCM DRO Mission, thus broadening our scope, maintaining our cutting-edge capability, and advancing US manned space exploration.&amp;nbsp; The goal is to be flexible enough to meet the needs of the NASA vision, as it applies to any destination the Agency chooses to embark upon.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;" ;
    dct:identifier "TECHPORT_13760" ;
    dct:issued "2013-12-01"^^xsd:date ;
    dct:modified "2020-01-29"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Autonomous Deep-Space Optical Navigation Project" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Ronald G Clayton" ;
            vcard:hasEmail <mailto:ronald.y.leung@nasa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/4e096352-742f-4ae5-9fd3-52f2d82391c1/resource/f7995e72-fdcf-4dcb-8a01-c3f5744f6c8f> ;
    dcat:keyword "active",
        "amerigeo",
        "amerigeoss",
        "ckan",
        "geo",
        "geoss",
        "johnson-space-center",
        "national",
        "north-america",
        "project",
        "united-states" .

<https://data.amerigeoss.org/dataset/4e096352-742f-4ae5-9fd3-52f2d82391c1/resource/f7995e72-fdcf-4dcb-8a01-c3f5744f6c8f> a dcat:Distribution ;
    dct:format "XML" ;
    dct:issued "2020-11-12T05:05:08.530774"^^xsd:dateTime ;
    dct:modified "2025-11-21T14:18:11.020538"^^xsd:dateTime ;
    dct:title "XML File" ;
    dcat:accessURL <http://techport.nasa.gov/xml-api/13760> ;
    dcat:mediaType "application/xml" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .