... 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. ...

... 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) . ...

... The fitting procedure will only converge to a unique solution if the components are linearly independent. ... The task calculates for each pair of component images and fails with an error if any is greater than 0.99. ... Hence components may be linearly independent in masked pixels yet still fail the test within the task. ... Finally, since the Poisson image values are necessarily all , negative values are not allowed in the model components. ...

... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

We present results of new Monte Carlo calculations made with the DIRTY code of radiative transfer of stellar and scattered radiation for a dusty giant late-type galaxy like the Milky Way, which illustrate the effect of the attenuation of stellar light by internal dust on the integrated photometry of the individual bulge and disk components. ... In addition, we find that the structure of the dusty ISM affects more sensitively the observed magnitudes than the observed colors of both bulge and disk. ...

... 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 ...

... Classes . Files . ... components . ... e. 2q+1 points are taken 00190 Int q_p ; 00191 // Internal cashing of calculated values based on q 00192 // group 00193 Double a_p ; 00194 Double b_p ; 00195 // /group 00196 // The minimum Gaussian width 00197 Double sigmin_p ; 00198 // The second derivatives 00199 Double * deriv_p ; 00200 // The list of components 00201 SpectralList slist_p ; 00202 // The length of the current profile being estimated 00203 uInt lprof_p ; 00204 00205 //# Member ...

Method of Calculating Cometary Orbits . ... A method of constructing a numerical theory of comet motion covering large intervals of time is presented. ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), calculating cometary orbits, numerical theory of comet motion covering large intervals of time , radial component of non-gravitational acceleration , transverse component of non-gravitational acceleration , normal component of non-gravitational ...

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. ...

RSAA Home . GSAOI Home . ... Other Links . ... Control Software Links . Optics Links . Micro-Optics Links . ... Optical Materials Databases . ... Rockwell Science Center home page . ... Santa Barbara Research Center home page . ... CCD-World home page . ... SDSU home page . ... EPICS home page . ... Optics Society of America . SPIE - Society for Optical Engineering . ... ZEMAX software (Focus Software page) . OPTICAD software (Focus Software page) . ... RedHat home page . ...

... The GW from coalescing compact binaries composed of NS and BH are the best understood of all astrophysical GW sources. A conservative lower limit to the event rate of galactic binary neutron star coalescence of about 1 per 100000 year follows from double pulsar   statistics studies (Narayan et al. ... In Figure  47 we show the rates of coalescence of binary WD and NS in a model elliptical galaxy   consisting of stars, depending on time elapsed since the (assumed instantaneous) star formation. ...

... Proximity e#ects of com­ ponents (reflection of radiation and surface gravity darkening) are taken into account. ... As an example, we consider the Algol (# Persei) system, where an eclipsing pair (Algol A­B) is accompanied by the third component (Algol C). ... The surface temperature distribution for Algol A­B system before (upper plot) and after (lower plot) correction for temperature due to the irradiation e#ect. ... We solve this equation by the iterative Newton­Raphson method. ...

This document explains values, tables and other matters on solar physics computing pages. ... is040423.ete : SAHA-S tables, interpolation values: T, rho, X. Z is fixed at 0.02. See reference above. opal2005.etf : OPAL EOS, interpolation values: T, rho, X, Z. Downloaded from OPAL site , marked there as "2005", seems to be unpublished. opal2001.etf : OPAL EOS, interpolation values: T, rho, X, Z. Rogers F.J., Nayfonov A. Astrophys. ... The following values can be calculated: . ... dimensionless . ...

... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

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. ...

... 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 . ...

... DpmkSpace (part of SAS) . Cdb server (part of calibDB, in Garching only . Dpserver (part of SA, in Garching only) More about P2PP checks to be performed when installing/configuring it. Go to top of page . More about OT-tcl/tk checks to be performed when installing/configuring it. ... More about Java-OT checks to be performed when installing/configuring it. ...

... 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. ...

... 2004) Fire Radiative Power (FRP) · (Kaufman et al., ... MODIS active fire detections DNBR (MODIS (500m): 200,000 175,000 150,000 area burned (ha) 125,000 100,000 75,000 50,000 25,000 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 scar numbe r 200,000 175,000 MODIS dnbr ba (ha) 150,000 125,000 100,000 75,000 50,000 25,000 0 0 25,000 50,000 75,000 100,000 125,000 150,000 175,000 200,000 La ndsa t ba (ha ) y = 1. 0156x + 2069.1 R2 = 0.9925 Landsat ba (ha) MODIS af MODIS dnbr ba MODIS ba DNBR 1. ... FRP DNBR...

... Iron abundance in the atmospheres of components of the binary system 41 Draconis . ... 5B Iron abundances, FeI and FeII lines equivalent widths, and microturbulence velocities were found for the components of a highly eccentric spectroscopic and interferometric binary system 41 Dra from high resolution spectra obtained close to the periastron. Weighted mean values of iron abundances in the atmospheres are lgN(Fe) = 7.66 ± 0.03 and lgN(Fe) = 7.72 ± 0.03 for the component a and b, correspondingly. ...