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• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network abstract "Ukrainian Optical Facilities for Near-Earth Space Surveillance Network, the UMOS (from Ukrainian acronym: УМОС = Українська мережа оптичних станцій дослідження навколоземного космічного простору) is an alliance of Ukrainian institutional research observatories and optical facilities of State Space Agency. Its strategic tasks include near-Earth spaceresearch (from LEO to HEO), and the studies of motion of selected objects by development and improvement of theory, models and algorithms. Also it is aimed at addressing tactical problems likeassistance in Ukrainian or international space launches. The UMOS's field of view covers large area ofspace, its facilities arrangement allows to carry out the observations of 3-4 consecutive passes of LEO satellites, as well as synchronous and complementing observations.The UMOS has conducted the ground-based surveillance of Near-Earth objects since the establishment of the network. The results of data processing earned positive feedbacks from customers in Ukraine: the State Space Agency, the Main Astronomical Observatory as well as our partners abroad. In particular, since 2011 the UMOS (some of the observatories since 2005) has conducted maintenance the first circuits after launching into orbit (Sun-synchronous) with Dnepr to identify and/or refine orbits of space objects (e.g. RapidEye, EgyptSat‑1, CryoSat‑2, Sich‑2, corresponding R/B of launcher).Also the UMOS carries out optical observations of active satellites and space debris on a single joint list to produce independent TLE catalog and to estimate the probabilities of satellite orbital conjunction for priority satellites, which meets the requirements of national Control Systems and Space Environment Analysis (i.e. similar to Space Situational Awareness). During just 2012 over 130,000 of position estimates for 194 LEO space objects (including series RapidEye, Orbcomm, CubeSat), 37 MEO objects, 29 GEO and GSO objects and also HEO space observatory Radioastron were obtained. As a result, the observation-based database was created, which had comprised 1509 sets of TLE for 183 space objects until the end of 2012.Recently, due to the increase in number of space debris and solar activity maximum, the operational failures at satellites are much more frequent. Photometric observations can aid in satellite in-orbit status analysis and provide with necessary data for the assessment of feasibility of their recovery.The photometric observations and data analysis for five tumbling satellites have been made since 2010. Among these five satellites were: two launch failures - Express-AM4 (5,775 kg mass at altitude of 1,000 km), Phobos-Grunt (13,200 kg mass on the low reference orbit of 250 km); as well as three accidents of satellite malfunction, when the appropriate control center has lost the connection - CBERS-2B (1,450 kg at altitude of 780 km), EgyptSat-1 (160 kg at altitude of 670 km), Sich-2 (170 kg at altitude of 670 km). All these satellites, except Phobos-Grunt, are non-resolved objects, thus photometry has been the only source of in-orbit status information. Over 50,000 photometric brightness estimates were obtained for the satellites both in the integral light and broadband BVR Johnson system filters. The UMOS is proven capable to run the whole study, from primary observations to analysis of the light curves and further determination of satellite orientation variations and origin of its possible damage.".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network affiliation Mykolaiv_Observatory.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network affiliation anlas.at.ua.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network affiliation index_en.php.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network country Ukraine.
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• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageRevisionID "664624582".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Acronym.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink CBERS-2B.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Category:Near-Earth_object_tracking.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Category:State_Space_Agency_of_Ukraine.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink CryoSat-2.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink CubeSat.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Dnepr-1.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink EgyptSat_1.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Ekspress_AM4.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Equatorial_coordinate_system.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Fobos-Grunt.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Geostationary_orbit.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Geosynchronous_orbit.
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• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Launch_vehicle.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Light_curve.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Low_Earth_orbit.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Medium_Earth_orbit.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Mykolaiv_Observatory.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Observatory.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Optical_filter.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Orbcomm_(satellite).
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Photometry_(astronomy).
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink RapidEye.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Satellite.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Satellite_collision.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Solar_phenomena.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Space_debris.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Space_observatory.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Spektr-R.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink State_Space_Agency_of_Ukraine.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Sun-synchronous_orbit.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Two-line_element_set.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink UBV_photometric_system.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network wikiPageWikiLink Ukraine.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network affiliation "RI "NAO", MAO NASU, RI "OAO", AO LNU, SRL UzhNU, NSFCTC SSAU, CSIRP and NFC SSAU, SIC "Orion" of DSTU".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network country Ukraine.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network fullName "Ukrainian Optical Facilities for Near-Earth Space Surveillance Network".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network name "UMOS".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network nativeName "Українська мережа оптичних станцій дослідження навколоземного космічного простору".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network website ukr.
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• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network subject Category:Near-Earth_object_tracking.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network subject Category:State_Space_Agency_of_Ukraine.
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network hypernym Alliance.
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• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network comment "Ukrainian Optical Facilities for Near-Earth Space Surveillance Network, the UMOS (from Ukrainian acronym: УМОС = Українська мережа оптичних станцій дослідження навколоземного космічного простору) is an alliance of Ukrainian institutional research observatories and optical facilities of State Space Agency. Its strategic tasks include near-Earth spaceresearch (from LEO to HEO), and the studies of motion of selected objects by development and improvement of theory, models and algorithms.".
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• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network name "UMOS".
• Ukrainian_Optical_Facilities_for_Near-Earth_Space_Surveillance_Network name "Ukrainian Optical Facilities for Near-Earth Space Surveillance Network".