The examples of the errors. ... Observations with ordinary values of the "Mean error of single observation" Obj Code DT RA (O-C) DEC (O-C) mag z h m s " ° ' " " ° 3907 761 1998 08 24.383673 3 17 44.739 0.28 +30 46 00.84 -0.08 15.8 18 3907 761 1998 08 24.409133 3 17 46.152 0.28 +30 46 10.85 0.12 15.8 11 3907 761 1998 08 25.392523 3 18 40.107 0.33 +30 52 27.69 0.04 15.4 15 Total mean value of 3 observations 0.297±0.017 0.027±0.058 Mean error of single observation 0.029 0.101 COMMENT. ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

... When this mode is used, there is a potential error caused by the imbalance in amplitude and phase of the two signals (linear polarization) being input to the hybrid. ... Vaout,Vbout : Hybrid A,B voltage outputs. eps : The relative phase error between the two input signals. w : Frequency of the input signal. ... When a single diode is used (correlated cal.. eg. the calibration button on the gui) then eps is defined and the output cal value in the two channels will vary depending on the phase error...

... 8, ``Celestial Mechanics'', 2002 Estimation of masses of some minor planets from observations of perturbed bodies O. M. Kochetova Institute of Applied Astronomy, St. Petersburg, Russia The most straightforward method of mass determination of minor planets is the dynamical one which uses the gravitational perturbations produced by minor planet in the motion of other bodies. ... The values of the masses of minor planets (15), (29) and (65) appear to be rather close in both papers. ...

... 1Wills Accurate measurements of relative flux density have been made between frequencies of 468 and 5009 MHz for 300 radio sources selected from Parkes catalogue. ... Excluding the incertainties in scaling these flux densities to an absolute system, rms errors vary from 0.24 Jy and 2.4 % at 635 MHz to 1.8 % at 2700 MHz; uncertainties in "absolute" scaling are thought to be about 45 %. ... Some sources whose spectra may be useful for flux density calibration are noted. ...

Name: PGERR1 Purpose: horizontal or vertical error bar Category: GRAPHICS File: pgplot.src Author: T.J. Pearson Use: see description below. Description: SUBROUTINE PGERR1 (DIR, X, Y, E, T) INTEGER DIR REAL X, Y, E REAL T Plot a single error bar in the direction specified by DIR. ... Arguments: DIR (input) : direction to plot the error bar relative to the data point. ... E (input) : value of error bar distance to be added to the data position in world coordinates. ...

... Posts tagged ?systematic error? ... Thanks to L. Lyons? work discussed in [ArXiv] Particle Physics , I found this paper, titled Systematic Errors describing the concept and statistical inference related to systematic errors in the field of particle physics. ... Continue reading ?systematic errors? Tags: coverage , Heinrich , likelihood , Lyons , nuisance parameter , objective priors , p-value , particle physics , statistical error , subjective priors , systematic error . ... Comment . ...

... To plot the data (and model, here xitau.model), I have read the model, computed the model values for the ASTROMETRY, and used Plot|ASTROMETRY to produce the ASTROMETRY plot widget. ... First, plot the data and with Util|Ellipse and the mouse buttons interactively define an apparent ellipse to fit your data as best as you can. ... Under Util|Orbit, there is a Thiele-Innes procedure to estimate the orbital elements using your apparent ellipse and Kepler's laws! ... Back to tour page . ...

Next: Results & Discussion Up: Coronal Hole Diagnostics out Previous: Introduction . ... The dates of the observations discussed here, their locations, pointing, slit sizes and exposure times are given in BTDW. ... Line fits are given by the dotted line. ... An estimation of the errors in the derived parameters was obtained using the GA-derived parameters as an input for a ``classical'' IDL-CURVEFIT procedure (Peter, 1999; Peter & Judge, 1999). ...

... Bojan Nikolic web pages (r. 329) . ALMA . We present a framework for modelling atmospheric phase errors and their correction by both the fast-switching and water vapour radiometeric techniques. ... We use this framework to simulate relative point source sensitivity and effective resolution for a range of atmospheric conditions, with and without phase correction. ... Published as ALMA Memo #582. ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ...

The most up-to-date information related to atmos 3.0 are collected here due to constantly increasing interest to MASS/DIMM processing software... atmos 3.0 is still beta , so the latest version is 2.97.5 (there is also 2.98.x branch which absorbs new features) . ... M' line: . ... free seeing and its relative error . ... dimm seeing and its relative error (if dimm data are present, zeros otherwise) . ... dimm turbulence power and its relative error (if dimm data are present, zeros otherwise) . ...

O-C for observatory with code - 046. September, 2004 . Compressed Ephemeris DE200/LE200 -------------- MP Obs Dynamical Time RA (O-C)cosDEC DEC (O-C) h m s " ' " " 4179 046 2004 9 10.858556 21 51 58.693 -0.35 -15 46 13.30 0.26 4179 046 2004 9 10.860276 21 51 58.588 -0.44 -15 46 14.86 0.45 4179 046 2004 9 10.861726 21 51 58.508 -0.41 -15 46 16.33 0.45 Mean of last 3 obs. ... 91042 046 2004 9 10.015486 1 59 29.878 -2.37 +12 30 33.76 0.81 ? ... Mean of last 6 obs. ...

... A common cause of errors in CCD differential photometry is an improper calibration of the array. ... Figure 1: Differential photometry as a function of the position on the CCD for three stars in a field observed with the University of Bochum 0.6m telescope at the ESO La Silla observatory. ... These variations are quite different from star to star. ... Differential data computed between widely separated stars can show errors of up to about 0.1 mag when a night-sky superflat correction is applied. ...

General Knowleges about Astrometry. ... Universal Tool, Meridian Tool, Meridian Circle, Vertical, Photografic Zenithal Telescope, Astrolabe, Zenith Telescope, Horizontal Meridian Circle, etc. Meridian Principle of Objects' Coordinates Determination. ... Absolute and Relative Methods of Coordinates Determination. ... Photografic Method in Astrometry. Telescopes for Position Observations by Photografic Method. ... Basis and Theory of Photografic Method of Coordinates Determination. ...

This document explains some of the directives provided by the core server which are used to configure the basic operations of the server. ... Process Creation . Network Configuration . ... User . ... A single control process is responsible for launching child processes which listen for connections and serve them when they arrive. ... The User and Group directives are used to set the privileges of the Apache child processes. ... The child process creates multiple threads to serve requests. ...

Общая Астрономическая Конференция > Форумы общей направленности > Общий форум любителей астрономии . Точность любительских позиционных ПЗС наблюдений . ... Регистрация: 25.11.2000 . ... Публикую здесь письма с обработкой моих ПЗС наблюдений астероидов, в первую очередь потенциально опасных для Земли. ... K00N00M 183 2000 11 28.995609 6 36 46.260 1.73 +39 16 03.47 0.24 17.6 7 . K00N00M 183 2000 11 29.024449 6 36 41.019 1.85 +39 15 21.45 0.16 17.4 14 . ... О.П. Пулково, 2000 12 15 . ...

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...

... Time calculated from Fermi GBM Trigger Time = 14:12:08.67 ( Connaughton, GCN 9230 ). 1% coincident with our start zero image time. 3x3 degrees around Swift XRT position . ... SUBJECT: GRB 090424 : MASTER-Net prompt optical limit DATE: 09/04/25 20:29:42 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski ... Our observations results: ---------------------------------------------------------------------- Fermi GRB Trigg.* ...

. Ordinate X (Date) . - . relative time of recent update of Web Site / relative time of recent update of a group of Web Sites. Ordinate Y (Size) . - . may be the quantity of letters, pages, outside links, pictures, binaries, error links, or given keywords in the HTML pages of Web Site / a group of Web Sites. Ordinate Z . - . item of list. Brightness (in one-color worlds) . - . the quantity of links to the outside in the HTML pages of Web Site.

... Hour of right ascension (alpha, h) 4. Minute of right ascension (alpha, m) 5. ... Degree of declination (delta, deg) 7. ... Right ascension error at mean epoch (mas) 10. ... Observatory Code -------------------------------------------------------------------------------------- N JD with alpha delta alpha error delta error mag filter telescope N sat. decimals h m s deg ' " mas mas obs -------------------------------------------------------------------------------------- ...