... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

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CCD Performance . ... The dark current appears to have two components: one from electronic sources in the CCD, and a second component whose strength correlates with the cosmic ray flux. ... As of this writing, the " DARKTIME" keyword in the WFPC2 image headers does not reflect correctly the actual time during which the CCD collects dark current. ... External exposures of 180s or longer made with the serial clocks off (CLOCKS=NO; the default setting) suffer an additional 60s of darktime (restart=1). ...

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• Technique
• Geometric Distortion
• Dust Attenuation in Late-Type Galaxies. I. Effects on Bulge and Disk Components

... 2006: . ... Components of the systems are low mass stars and white dwarfs. For 14 pairs orbit parameters were calculated and masses and luminosities of components were determined for the first time. ... As a result of a multifrequency monitoring of the variability of a micro quasar Cyg X-3 (X-ray binary system which probably consists of a black hole and a high mass Wolf-Rayet star) a high activity period was registered for the first time in the last 4 years. ... Archive . ...

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• IRAS01005+7910
• Galaxy sector, archive 2009
• Metagalaxy sector, archive 1994

. Next: CALgetEncircledEnergy Up: CALgetPSFmap Previous: Output Contents . For the SciSim CCF, one of the following CCF components shall be used depending on the selected telescope. XRT1_XPSF_????_SCISIM.CCF XRT2_XPSF_????_SCISIM.CCF XRT3_XPSF_????_SCISIM.CCF For the XMM CCF, one of the following CCF components shall be used depending on the selected telescope. XRT1_XPSF_????_SCISIM.CCF XRT2_XPSF_????_SCISIM.CCF XRT3_XPSF_????_SCISIM.CCF . Michael Smith 2011-09-20

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• List of CCF Components used
• Constraints on the model components:
• EPIC Related CCF Components

... The evolution of a binary system is considered as a sequence of stages the duration of which are defined by the shortest evolutionary time-scale of one of the binary components (see the list of the evolutionary states of stars in Sections 3 and 4). ... Then the code finds a new stage the binary should transit to, with this stage being determined by the evolutionary states of both components, and calculates it. ... However, one can use the algorithm described above to model their evolution. ...

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• Change of Binary Parameters: Mass, Semi-major Axis and Eccentricity
• Evolutionary Scenarios of Binary Systems
• Notes on Monte-Carlo Simulations

Next: Pass band integrations Up: Fit scenarios Previous: Triple with velocity curves Contents . Fit all three masses, as well as the inclination of one of the pairs. That not any combination of orbital inclinations is allowed can be seen from the fact that the triple consists of two double-lined binaries and only one mass solution exists for a given inclination. ... Christian Hummel 2015-04-28 ...

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• How DFS components access databases
• Uncorrelated flux component
• DFOS tools: documentation and installation

... Among the objectives of Principal Components Analysis are the following. dimensionality reduction; љ . the determining of linear combinations of variables; љ . ... identification of groups of objects or of outliers. ... Finding a set of principal axes allows the objects to be adequately characterised on a smaller number of (artificial) variables. ... Reduction of dimensionality is practicable if the first new axes account for approximately 75 % or more of the variance. ...

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• FIT/ROMAFOT
• Diffuse Model
• Sky background definition

. This diagram shows a small table with three transparent cells and illustrates how their final background is determined. The table consists of two rows. Four (labeled) cells lie in the first row, but the second cell spans the first and second row. The first, third, and fourth cells of the second row are "empty". Each non-empty cell has a red background and a double black border. Each empty cell has the table's background color (specified as #ff0) as its own. Return to image.

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• Explanations for solar physics computing page
• A Simple Example With a Single Chirp Component
• Background color examples

... The file names' construction . The flight (m) stage's file set . ... the orbital data used for the flight operation monthly (m) long-term planning, . ... The orbital calculations are based on the initial orbital data determined by KIAM RAN using the orbital radio- measurement treatment. The determined initial orbital data are presented as a state vector (satellite position and velocity) in the J2000 reference. ... Accept the file with extension '.bgr', where the Moscow time (MT=UT+3h) is used. ...

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• INTERBALL Auroral probe (INTERBALL 2) post-flight orbital elements collection
• OFO IKI / Test Calibration Facilities
• About modification of the INTERBALL orbital elements

... The cross entropy for this complex image is given by ( 16 ) and ( 17 ). ... Differentiating ( 31 ) with respect to and , we find the gradient of is given by . and upon differentiating once more we find the Hessian (curvature) matrix of has the form . ... and its Hessian matrix reads . ... From ( 16 ) and ( 17 ), we find the components of the gradient vector of the cross entropy are given by . ... Differentiating once more we find the components of the Hessian of the cross entropy to be given by . ...

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• Inference of Coefficients for Use in Phase Correction Bojan Nikolic web pages
• Inference of Coefficients for Use in Phase Correction
• G327.6+14.6

CIMA is more than just the observing tool - in fact, the observing tool is just a part of a bigger package called the CIMA software package. ... There is also a another package called the CIMA WAPP software which contains the WAPP software, the special Tcl/Tk interpreter used by CIMA and support libraries. ... All CIMA software components recognize the following general options that are part of the CIMA version selection system: . ... The select_cima script can be used to set up a default version. ...

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• Chapter 5. Listing of Installed Components
• Some useful data about gains, NFs & compression points of Eddies box components
• Chapter 28. Configuring Depth 30 Displays

The above process keeps the # of protons and the # of neutrons in the early Universe constant. This is extremely important and will result in a testable prediction later. Remember, a free neutron (one that is not bound in an atomic nucleus) will decay into a proton + electron (+ anti-neutrino) in about 900 seconds. ... During this epoch, the proton-to-neutron ratio is 1.0 . ... The Universe consists of protons, neutrons and electrons plus a photon background and a neutrino background. ...

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• Physics 410/510 Observational Cosmology
• THE HUBBLE LAW JAVA APPLET

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

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• Marc White - Astrophysicist - The Australian National University
• Richard Woolley and Jim Banham inspecting optical and mechanical components,
• GSAOI Component Supplier Links Page

... L.V.Zotov , C. M. Bizouard Envelope calculation () () () E() L.V.Zotov , C. M. Bizouard Envelope calculation () () () E() L.V.Zotov , C. M. Bizouard Amplitude model and forecast 3-layer Neural Network with (7, 7, 1) neurons L.V.Zotov , C. M. Bizouard Phase model and forecast 3-layer Neural Network with (7, 7, 1) neurons L.V.Zotov , C. M. Bizouard Phase and amplitude models ~ Chandler ...

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• http://www.gao.spb.ru/english/publ-s/viii-rfs/p099.pdf
• Phase light curves of young binary systems

... User Guide ] Task: odnh3 Purpose: Ammonia analysis program Categories: map combination, map manipulation ODNH3 is a MIRIAD task that creates optical depth and rotational temperature maps from ammonia maps. Ammonia J,K=(1,1) emission has five hyperfine components, one main hyperfine component, two inner hyperfine components, and two outer hyperfine components. ... Key: map1 Input map, main hyperfine component map of the J,K=(1,1) level. No default. ... Key: region Standard keyword region. ...

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• casacore: components/SpectralComponents/SpectralEstimate.h Source File
• casacore: components/SpectralComponents/SpectralList.h Source File
• casacore: casa::ComponentUpdate Class Reference

... 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) . ...

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... Астронет | ... Термин "component" . ... компонента . ... составляющие [компоненты] радиоизлучения Солнца . ... составляющие [компоненты] солнечного радиоизлучения . ... основная компонента (радиоизлучения Солнца) . ... составляющая (радиоизлучения всплесков IV типа) в сантиметровом диапазоне (радиоизлучения Солнца) . ... жесткий компонент (напр. корпускулярного излучения) . ... спорадическая [быстрая] компонента (радиоизлучения Солнца) . ... составляющие [компоненты] радиоизлучения (напр. ...

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• Spacecraft Rosetta Shows Comet has Two Components
• The International Space Station Expands Again
• The Newly Expanded International Space Station

Short Notes phys. stat. sol. (a) K2 1 K21 (1975) 27, Subject classification: 18.2: 21.1; 21.1.1 Solid State Physics Institute, Academy of Sciences of the USSR, Chernogolovka The Effect of Pressure on the Curie Points of Fe-Ni-Cu and Fe-Ni-Mn Alloys BY V.E. ANTONOV, G.T. DUBOVKA, and E.G. PONYATOVSKII There is a series of papers on the effect of pressure on the Curie points T of C Fe alloys with other transition elements. ... The dependence of the Curie points on pressure is linear. ... 1 Fig. ...

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• MgB2 Safety Data Sheet
• III International Astronomy Olympiad, Problems to solve
• Equipment LSR ISSP RAS

FOURIER PARAMETERS AND MOMENTS POLARIZATION PROFILES OF MAGNETICALLY LINES. ... A new method is proposed to determine all components of the solar magnetic fields using the cumulants of the profile of a magnetic sensitive line. The method is based on polarization measurements in a number of points of the line profile and subsequent calculation of the amplitudes and phases of its two first Fourier-harmonics. ... Use these to find two or three first cumulants of the line profile. ...

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• http://www.izmiran.rssi.ru/~obridko/papers/328engl.pdf
• Magnetic Flux of EUV Arcades and Dimmings
• Astronomical and Astrophysical Transactions, 2000,

Next: *upspecrdf, downspecrdf* - Transform Up: Spectral Analysis Previous: *grid_plot* - Plot Results . The conversion of count rate to flux depends on the intrinsic spectrum of the source, so xflux must be used in conjunction with fit . Fit generates a table of the best fit intrinsic spectrum ( _int.tab extension). xflux uses this table to calculate either the integrated flux between two energy limits or the flux density at a specific energy. ... This produces ``..._obs.tab'' file. ...

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• The AstroStat Slog Blog Archive [ArXiv] component separation methods
• The AstroStat Slog component separation
• The AstroStat Slog ICA