We have evaluated various image restoration techniques (both linear and non-linear) applied to a simulated crowded star field observed with the HST Planetary Camera (PC). Evaluation criteria included star detection, astrometry, and photometry. ... The non-linear methods give much better star detection and slightly better astrometry results. Aperture photometry measurements in images restored with the non-linear restoration methods show significant non-linearities. ...

... Bojan Nikolic web pages (r. 329) . ... Using high-resolution three-dimensional realisations of turbulent fields, we investigate the limits on achievable performance of atmospheric phase correction using water-vapour radiometers arising from following effects: the incoherent measurement of power from water by the radiometers (in contrast to coherent detection of the astronomical signal); the different tapers of the response patterns of the astronomical and radiometer receivers; and, the ...

HI source finding algorithms Comparing the general purpose Duchamp algorithm to a purpose built HI source finding algorithm Talk Outline · Common elements of source finding algorithms · The Duchamp algorithm · · · · Algorithm Strengths Draw-backs Improvements · An alternative HI source finder algorithm · Key differences · Algorithm · Preliminary work · Conclusion Common elements of general ...

Calibration evaluation of the MOS timing modes M.G.F. Kirsch1, J.O. Larsson2, M. Stuhlinger2 1 ESA XMM-MOC, ESOC Germany 2 ESA XMM-SOC, ESAC Spain Marcus G. F. Kirsch XMM-Newton Page 1 menu · flux · timing Marcus G. F. Kirsch XMM-Newton Page 2 situation · flux : ­ X-cal archive showed for some MOS observations that have been performed in timing mode ... Results of relative timing analysis of EPIC-MOS1 30 Results MOS2 Figure 5.3. ...

... Positive iterative deconvolution is an algorithm that applies non-linear constraints, conserves energy, and delivers stable results at high noise-levels. This is also true for Richardson-Lucy like algorithms which follow a statistical approach to the deconvolution problem. ... All algorithms resolve the objects, as shown by the reconstructions by Richardson-Lucy in Figure 2 on the right, the algorithm by M?ller in Figure 3 on the left and positive iterative deconvolution in Figure 3 on the right. ...

... The performance of each algorithm on the simulated lightcurves is scored accor ding to the rates of false positive (Type I) and false negative (Type II) errors. ... Combined: threshold normalization = 5 в 10 -4 References · Aschwanden, M.J., Nightingale, R.W. Tarball, T.D., & Wolfson, C.J. 2000, Ap J , 5 3 5 , 1 0 2 7 · Hudson, H.S. 1991, SoPh, 133, 357 Figure 3 Calibrating the event detection algorithms to optimize false positives, using the simulated lightcurves with zero events. ...

The primary purpose of KM-7 is to measure the temperature of cold electrons Te in Plasmasphere. ... The spacecraft potential can be evaluated from these measurements. ... MLT . ... Fig.1 . KM-7 measurements in MRK mode during the whole orbit 124 , 27.IX.96. ... Preliminary results . In period considered SC passed the plasmasphere at low and middle latitudes near L < 4 at heights = 8000-10000 km. At L > 4-5 and heights > 8000-10000 km SC was in auroral zone. ...

... Paradoxically, signal detection is concerned with fitting models to supposedly random series similarly to mathematical proofs by reductio ad absurdum of the antithesis. ... The quality of the fit is evaluated using a function S of the series , , and . ... A random variable S is characterized by its probability distribution function. ... The special realization of a random series which consists of independent variables of common (gaussian) distribution is called (gaussian) white noise. ...

... NOTE: Some of these operations generate new sets, if you run out of sets use Edit/Set operations (described below) to kill unneeded sets. ... Select the set on which the formula will operate, (set must be active, use File/Status to find the current state of sets). ... where (x,y,a,b,c,d) are defined as the x and y of the currently selected set and a,b,c,d are scratch arrays that can be used to perform operations between sets. ... Select the set. ... Select fitted curve or residuals to load. ...

... SSAU History . SSAU roadmap . ... SSAU scientists Sergey Zvonov, Engineer of Software Innovation Management, and Andrey Gavrilov, Head of Administration on Scientific Personnel Training, presented developments of the University at the International Exhibition- Seoul International Fair (SIIF-2014). International Forum was held in Seoul (South Korea) from November 28 to December 1. ... SSAU experts presented four developments that aroused a great interest among the exposition visitors. ...

... Recent Topics . ... MAO main . ... Article to gravitational wave detection by LIGO.. N-body simulations... berczik . ... N-body simulations. ... MAO/NASU, 27 Akademika Zabolotnoho St. 03680 Kyiv, Ukraine . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ...

There are two azimuth encoders. ... The first plots show the encoder difference versus azimuth (.ps) ( .pdf) : . Top plot: The encoder difference (in encoder units) versus azimuth angle. ... Bottom plot: the same plot with the vertical scale in degrees rather than encoder counts (there are about 6935 encoder counts in a degree). There is a positive going bump in the encoder difference at az=160 degrees and a corresponding negative going bump 180 degrees away. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We present an analysis of new and previously published spectropolarimetric observations of these stars. ... A re-analysis of the published longitudinal field measurements obtained with the low-resolution FORS1/2 spectropolarimeters finds that the measurements of all stars show more scatter from zero than can be attributed to Gaussian noise, suggesting the presence of a signal and/or systematic underestimation of error bars....

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

... Evaluation period Arc1 : 2011/09/02 00:00 ~ 09/07 00:00 Arc2 : 2011/11/19 00:00 ~ 11/24 00:00 Arc3, 4 : 2011/12/15 00:00 ~ 12/22 00:00 SLR residuals (cm) AVE STD RMS 14.2 -15.3 -24.1 7.5 9.4 11.0 16.0 17.9 26.5 14 Step3 results:QZS-1 orbit based on MADOCA and SLR orbits Differences between the MADOCA-orbits and JAXA/HIT-orbits · Radial biases that have an average of 20-30 cm from the orbits using SLR data were detected in each arc. ... More SLR data of QZS-1 is needed to evaluate QZS-1 MADOCA orbit....

The HyperNews Linux KHG Discussion Pages . Forum: The Linux Kernel Hackers' Guide . Date: Wed, 07 Jan 1998 14:23:15 GMT . ... We are doing a project that required us to change some chatacteristics of the TCP protocols and/or add a buffer into the TCP layer also. It seems to us that the SOCK_RAW or SOCK_PACKET are good choice to override the TCP or even IP level of the networking software. Unfortunately, we cannot find any documents or sample programs about SOCK_RAW or SOCK_PACKET.. ...

DFS Department . To be evaluated development tools . ... ANALYSIS and DESIGN PHASES . Helpdesk offers support on Rational Rose Enterprise which is a full environment to implement the UML method . ... Rational Rose is a graphical software-engineering tool that supports object-oriented analysis, design, and implementation. ... Automatically generates C++/Java/Ada code for your application . ... Insure++ includes three distinct tools that work together to improve your development process. ...

... V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow 119899, Russia, shev@sai.msu.ru . ... 1.Sternberg State Astronomical Institute, 119899, Moscow, Russia. shev@sai.msu.ru . ... V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow 119992, Russia, shev@sai.msu.ru . ... 119992 Moscow, Russia; . ... 2Sternberg Astronomical Institute, Moscow University, Moscow, 119992, Russia, . ... Moscow, 119992, Russia shev@sai.msu.ru . ...

Relationship between the diameter and cumulative number of bodies larger than the size obtained from the observed asteroids. ... The red circles show the diameter range used for evaluation of the distribution slope, which indicates the asteroid population. ... The slope changes at one kilometer, a shift that asteroids near the ecliptic plane also show. The blue and green lines show the estimated slope of asteroids in diameter ranges smaller and larger than one kilometer, respectively. ...

Home About Meade Product Information Dealer Locator Customer Support Investor Relations Dealer Support Employment Opportunities Site Map . Meade Instruments Corporation . ... The Autostar/LX200 Command Set . ... The LX200 Command Set may be used to write custom software for remote operation of an LX200 telescope with a personal computer. ... The name Meade and the Meade logo may be used only with permission from Meade Instruments Corporation. ... Autostar Downloads . ... product information | ...