Next: XMM_MISCDATA Up: CCF Components Previous: Appendix: List of valid Contents . While some relevant RGS calibration data are given in the general-purpose CCF components . ... Some information concerning the maintenance of RGS CCF files is given below, though more details are available in the release notes that accompany new file releases and other technical notes. ... Use of CCF components by RGS SAS tasks . ... Purpose . Functionality . Ground calibration . Maintenance procedures . ...

... Quasars and Black Holes . ... Astronomers using ESOБЂ™s Very Large Telescope have discovered a gas cloud with several times the mass of the Earth accelerating fast towards the black hole at the centre of the Milky Way. This is the first time ever that the approach of such a doomed cloud to a supermassive black hole has been observed. ... Simulation of gas cloud after close approach to the black hole at the centre of the Milky Way . ... ESOcast 39: A Black HoleБЂ™s Dinner is Fast Approaching . ...

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

... Soon it?ll not be qualified for [MADS] because I saw some abstracts with the phrase, compressed sensing from arxiv.org. ... Title: Compressed sensing imaging techniques for radio interferometry . ... The theory of compressed sensing demonstrates that such measurements may actually suffice for accurate reconstruction of sparse or compressible signals. ... Tags: compressed sensing , ill-posed , image reconstruction , interferometry , inverse problem , MADS , Nyquist-Shannon sampling theorem . ...

The Yarkovsky Effect in the Motion of NEAs . ... In this paper we evaluate the Yarkovsky effect on the motion of NEAs under the assumption that this acceleration depends on heliocentric distance as 1/r 2 and is characterized by the transverse component 2 in the orbital coordinate system. ... In some instances the Yarkovsky effect can be estimated by using only optical observations. Accounting for the Yarkovsky effect permits to include more optical observations in the orbit fitting process. ...

... LUMAM . ... HOME . ... MICROSCOPES . ... CAMERAS . ... Home Products Microscopes Lumam HT-45LU Trinocular Observation Head . HT-45LU TRINOCULAR HEAD . ... Every trinocular LUMAM includes three vertical adapters: the VA-V20LU focusing C-mount adapter for attachment of C-mount video/digital cameras, the VA-F20LU photo adapter for 35mm cameras – with adapter rings for cameras that accept T-mount, Pentax or C-mount lenses, and the VA-T1LU telescoping DIN standard eyepiece tube adapter (23.2mm). ...

... The software systems are described following the forward and back­ ward data flow to/from the satellite: starting from the Observation Pro­ posal reception and archiving, the long term observation scheduling up to the detailed weekly planning and telecommands sequence uplinking, and vice versa the scientific and housekeeping raw telemetry acquisition and archiving, quick look data analysis, data reformatting and distribution as a Final Observation Tape to the Observation Proposal PI. ...

... Gravity data reflect changes, related to the groundwater redistribution, ice melting, and precipitation accumulation. ... We apply Multichannel Singular Spectrum Analysis (MSSA, or extended EOF) technique to filter GRACE data and separate the principal components (PCs) of different periods. We performed data averaging over the large river basins of Russia. ... Fig 1. ... MSSA is a promising method for GRACE data processing, de-striping, filtering, and Principal Components (PCs) separation. ...

. To appear, J. Math. Phys. (1998). Jacques Lewalle, jlewalle@syr.edu

... Контроль наблюдений . ... Оценка точности наблюдений АСЗ . КОНТРОЛЬ НАБЛЮДЕНИЙ . ... Все наблюдения, очевидно, имеют ошибки, иногда весьма значительные. Величины (O-C), т.н. "наблюденные" минус "вычисленные" координаты, численно характеризуют наблюдения любой обсерватории, профессиональной или любительской, в течение короткого периода в одну или несколько близких ночей. Каждая разность (O-C) включает ошибки теории движения объекта плюс случайные и систематические ошибки наблюдений. ...

ПУБЛИКАЦИИ - 1997 год . ... 125, 1997. ... XXVII Радиоастрономическая конференция "Проблемы современной радиоастрономии", Санкт-Петербург, 10-14 ноября 1997 г., Тезисы докладов. ... Solar Phys. 1997. ... XXVII Радиоастрономическая конференция 'Проблемы современной радиоастрономии' Санкт-Петербург, 10-14 ноября 1997 г. Тезисы докладов, том.2, с.4-5. ... XXVII Радиострономическая конференция 'Проблемы современной радиоастрономии' Санкт-Петербург, 10-14 ноября 1997 г. Тезисы докладов, том.2, с.14-15. ...

... Polar Cap Potential . ... The solar wind propagation delay time calculation used here is conceptually similar to the T(IMF) calculation in Kelly, et al. ... The older continuous data are from key parameter data files. ... Note: Very high values of Solar Wind Speed, Solar Wind Pressure, IMF Magnitude and Bz, and Polar Cap Potential are likely indications that WIND has reentered the Earth's magnetosphere; such data is not indicative of solar wind conditions or impending severe geomagnetic disruption. ...

Andreyev Yu.V., Dmitriev A.S. and Pustovoit V.I. Institue of RadioEngineering and Electronics of RAS . Efremova E.V. Moscow Institue for Physics and Technology . ... Separation of a sum of chaotic signals corrupted by Gaussian channel noise into the components with a method based on chaotic synchronous response is discussed. In order to establish the response, a procedure of iterating the maps, inverse to the maps that generate the chaotic signals, is proposed. ...

... Minute Values of Geomagnetic Field Components . ... AA 1868 - Present (3 hourly and daily) (monthly) (yearly) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) KP_AP 1932 - Present (3 hourly and daily) (Lists and histograms of geomagnetic disturbance and Solar Sunspots) AE_HV 1957-75, 78-88 (hourly) AE_MIN 1978-881-6;198903;1990-94 (minute) DST 1957 - Present (hourly) PC 1975 - Present (15-minute) AMANAS 1959 - Present (3 hourly and daily) KMKNKS 1983 - Present (3 hourly) . ...

. Additional settings . Number of observations found: . 17 . ADS number: . 03353 . WDS number: . 04385+2656 . Components: . AB . All (17) . Photo (15) . CCD (2) . Epoch . JD . Separation . e(S) . N(S) . e1(S) . Pos.angle . e(P) . N(P) . e1(P) . N . Orient. Meas.code . Detector . Back . Abbreviations . Main Page .

Cosmic Ray laboratory of . ... Neutron Monitor (Cosmic Ray Observations) . is situated in Irkutsk (Russia) . ... Height - location above sea level . ... Height: . ... For recording the CR (Cosmic Rays) neutron component at Irkutsk, . neutron monitor NM-64 is used, which is an installation with 18 two-meter proportional counters filled with BF 3 (boron trifluoride gas) in which the B 10 90 per cent of the total boron. ... The neutron monitor is located at 475m above sea level. ...

... Научная панорама ? arxiv:0708.1060 Наблюдение первого события микролинзирования в бедном звездном . ... arxiv:0708.1060 Наблюдение первого события микролинзирования в бедном звездном поле: Таго (Observation of the first gravitational microlensing event in a sparse stellar field : the Tago event) . ... Обычно события микролинзирования ищут в богатых звездных полях. Здесь же все происходит не в направлении на близкую галактику или балдж нашей Галактики, а в обычном (бедном) звездном поле. ...

... 2014 July 21 . Spacecraft Rosetta Shows Comet has Two Components . Image Credit: ESA / Rosetta /MPS for OSIRIS Team ; MPS /UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA . Explanation: Why does this comet's nucleus have two components? The surprising discovery that Comet 67P/Churyumov–Gerasimenko has a double nucleus came late last week as ESA 's robotic interplanetary spacecraft Rosetta continued its approach toward the ancient comet's core. ... About APOD | ...

... Authors: D. M. Peterson et al. astro-ph/0603449 Результаты трех лет работы WMAP: приложения к космологии (Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology) . Authors: D. N. Spergel et al. astro-ph/0603450 Результаты трех лет работы WMAP: анализ поляризации (Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis) . ... Authors: V.P.Reshetnikov . ...

... Наши наблюдения кометы Хейла-Боппа (C/1995 O1). ... Достаточно большая серия наблюдений (более 100 изображений кометы) была выполнена до ноября 1996 года, когда Земля вновь заняла неудобное для наблюдений кометы положение на орбите. ... На серии наших снимков, еще в августе 1996г. отчетливо видны пять газовых струй, бьющих из ядра кометы. ... Вновь приступить к наблюдениям кометы Хейла-Боппа нам удалось только после окончания морозов и сезона ненастной погоды, в марте 1997 года. ... Кометы | ...