J/AN/333/209ivo://CDS.VizieR/J/AN/333/209doi:10.26093/cds/vizier.113330209CDSSchartel N.2025-09-29T20:17:51Z2012-07-12T15:48:28ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frastronomical-modelsspectral-energy-distributionx-ray-sourcesThe historical development of ground based astronomical telescopes leads us to expect that space-based astronomical telescopes will need to be operational for many decades. The exchange of scientific instruments in space will be a prerequisite for the long lasting scientific success of such missions. Operationally, the possibility to repair or replace key spacecraft components in space will be mandatory. We argue that these requirements can be fulfilled with robotic missions and see the development of the required engineering as the main challenge. Ground based operations, scientifically and technically, will require a low operational budget of the running costs. These can be achieved through enhanced autonomy of the spacecraft and mission independent concepts for the support of the software. This concept can be applied to areas where the mirror capabilities do not constrain the lifetime of the mission.2012AN....333..209Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AN/333/209CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AN/333/209https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AN/333/209http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AN/333/209https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AN/333/209https://vizier.iucaa.in/viz-bin/votable?-source=J/AN/333/209http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AN/333/209GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapX-raydefaultJ/AN/333/209/xmm_calEstimate the total effective arearecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEEnergykeVphys.energydoubleAreaEffective areacm**2phys.area;instrdouble