Sloan Digital Sky Survey Telescope Technical Note 19970527 Walter Siegmund . ... Pointing Error Budget . ... The interleaved strips and adjacent stripes overlap about 1 arc minute. ... However, a 2-D pointing accuracy of 3 arc seconds RMS leads to acceptibly uniform overlap and minimises the number of cases that require special handling (Table 3). ... A guide fiber bundle diameter of 16.5 arc seconds and a pointing accuracy of 3 arc sec RMS results in 99% initial success in acquiring guide stars. ...

System parameters on Digital UNIX . ... Digital and Cray use the number of bytes as the KIND -parameter. ... LOGICAL Default byte word KIND number = 4 1 4 LOGICAL Default double quad KIND number = 4 8 16 INTEGER int15 int31 int63 KIND number = 2 4 8 digits = 15 31 63 radix = 2 2 2 range = 4 9 18 huge = 32767 2147483647 9223372036854775807 bit_size = 16 32 64 REAL single double quad KIND number = 4 8 16 digits = 24 53 113 maxexponent = 128 1024 16384 minexponent = -125 -1021 -16381 ...

... Make up at least 5 data points, each with an x value, a y value and an uncertainty in the y value. ... Right-click on the top of the column containing the x-data and drag your mouse to the bottom of the column to select it. ... You must first enter the Positive Error Value (the `up error bars') ­ click at top of the column of y error values and drag down to select all of the values (in the above screenshot the y error values are in the column labeled ). ... Let's try fitting a straight line. ...

Scale-heights of the Galactic disk subsytems with different ages and metallicities . V.Marsakov & Yu. ... It is based on the fact, that all stars cross the disk plane several times during their Galactic orbital period. ... We have used our representative sample of nearby disk F2-G2 stars Marsakov & Shevelev (1995) in which fundamental stellar parameters was determined on the basis of published date on uvby-photometry, proper motion and radial velocities. ... Marsakov V.A., Shevelev Yu.G. Bull. ...

Magnetic Stars, 2011, pp. 153 ­ 156 Ab out the Dep endence of the Rotation Velo city of CP Stars on the Magnetic Field Glagolevskij Yu. ... Based on the observational data of the average magnitudes of the surface magnetic field strength Bs for a number of chemically peculiar stars we investigate the dependence of the rotation period on the magnetic field. ... Now the periods of rotation P and the average values of the surface magnetic field Bs are known for more than 50 magnetic stars. ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

ON-LINE STATIC EIT RECONSTRUCTION SERVER . ... Static image reconstruction from the data measured in vivo is still intriguing problem in EIT. ... dipole (adjacent) current injection and voltage measurements on pairs of adjacent electrodes (like in Sheffield systems) . ... You can view examples of the text files for polar , dipole and trigonometric injection, use them for testing the server and find more details on HOW TO PREPARE INPUT FILE FOR THE ON-LINE EIT RECONSTRUCTION SERVER page. ...

MAJOR MAGNETIC STORMS 1932-1997 ACCORDING TO THE Ap* CRITERIA To view a plot of the number of magnetic storms v.s. sunspots, go to ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/APSTAR/magstorm.gif A simpler global index of magnetic activity (other than Kp or Km) is produced in France from the K indices of two nearly antipodal magnetic observatories in England and Australia. ... An AA* index has been derived that is the counterpart of Ap* but is available for the longer span of years. ...

... public class CurveFitter . ... static int . ... Field Detail public static final int STRAIGHT_LINE . ... public static final int POLY2 . ... public static final int POLY3 . ... public static final int POLY4 . ... public static final int EXPONENTIAL . ... public static final int POWER . ... public static final int LOG . ... public static final int RODBARD . ... public static final int GAMMA_VARIATE . ... public static final int LOG2 . ... public static double f (int fit, double[] p, double x) . ...

First, we'll set up values for Mail :: Bulkmail # #################### define package Mail :: Bulkmail # server _class stores the server object that we're going to use. #uncomment the DummyServer line and comment out the Server line for debugging server _class = Mail :: Bulkmail :: Server # server _class = Mail :: Bulkmail :: DummyServer #log our errors ERRFILE = / Mail::Bulkmail might as well use it. ...

Minimum: 0; Average: 47; Maximum: 99 . Results divisible by: . 2: 52%, 3: 33%, 4: 25%, 5: 21%, 6: 18%, 7: 14%, 8: 12%, 9: 13%, . Range . Graph . Pct  . Count . 10 . 6 . 25 . 20 . 11 . 43 . 30 . 11 . 42 . 40 . 12 . 46 . 50 . 9 . 35 . 60 . 12 . 47 . 70 . 11 . 42 . 80 . 8 . 31 . 90 . 8 . 32 . 100 . 11 . 42 .

... Астронет | ... планета Астронет | ... Астрономия в России | ... История астрономии . ... Любительская астрономия . ... Кривая блеска GRB 030329 . ... Includes most data through GCN 2276 . Light curve of posted GCN observations of GRB030329, including AAVSO observations, by Melissa Nysewander (UNC-Chapel Hill) . ... Публикации с ключевыми словами: гамма-всплески - оптические ореолы гамма-всплесков . ... Самый далекий, самый желанный . GRB 090423: самый далекий взрыв . ...

... Some equations, identities or formulas contain small quantities , and these can be made much simpler and easier to use by sacrificing a little accuracy. ... When we derive squares, 3rd powers, 4th powers etc. of numbers larger than 1 , the results are always bigger , while for numbers smaller than 1 , the results are always smaller . ... power . ... number . ... The above also holds for negative numbers, if one understands "bigger" and "smaller" to refer to the absolute value (the value without sign...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Quasi-stationary electron distributions for the different values of the particle escape time. ... The electron-cyclotron maser instability is widespread in the Universe, producing, e.g., radio emission of the magnetized planets and cool substellar objects. ... The model used takes into account the radiation escape from the source region and the particle flow through this region. ...

... Description . Catalog . ... In the Catalog, we publish equatorial (ЮБ 2000 , ЮД 2000 ) and galactic (l,b) coordinates of cluster centers derived as the position of overdensity in 2MASS catalog (Koposov et al. ... Distances, color-excesses and ages are the mean-square values calculated using all available evaluations from different color-magnitude diagrams. ... There are individual pages for every cluster where all available plots and parameters are published. ... 2002). ...

... This page will contain a form to pass parameter values for a on-line working code producing figures illustrating the dependence of optical properties of different scatterers on their parameters. Specify the parameters and press start calculation button to produce a figure. ... Independent variable: x v a/b alpha Re(m)? another? ... Number of curves: 1 2 3 . ... Curve #1: . Particle shape: sphere spheroid another? TE/TM mode: TE TM . Other parameters: x= Re(m)= Im(m)= a/b= alpha= . ...

Variations of total ozone content and lower ozone stratosphere temperature in Antarctic Region during winter-spring period A.V. Grytsai National Taras Shevchenko University of Kyiv Astronomy and Space Physics Department assen@univ.kiev.ua Data, used in the work work Total ozone: Total Ozone Mapping Spectrometer (TOMS) measurements during 1979 - 2005 and Ozone Monitoring Instrument (OMI) ones for 2006, for http://toms.gsfc.nasa.gov/ftpdata.html. ... A long-term TOC decrease is significant. ...

Stellarium 0.12.3 . ... Classes . ... AngleSpinBox Class Reference . A spin box for displaying/entering angular values. More... #include < AngleSpinBox.hpp > . ... virtual voidљ . ... Set the value to default 0 angle. ... AngleSpinBox (QWidget *parent=0, DisplayFormat format= DMSSymbols , PrefixType prefix= Normal ) . ... Set the display format. ... the value to set, in decimal degrees. void AngleSpinBox::setDisplayFormat . ... the value to set, in radians. void AngleSpinBox::valueChanged . ...

... Equinox of object coordinates BJ = 18.87 / bJ magnitude UMBJ = -0.69 / u - bJ colour BJMR = 0.22 / bJ - r colour NOBS = 1 / Number of 2dF observations available IS_ BEST = 'TRUE ' / TRUE if this file contains the best 2dF observa DATEBEST= '24/09/00' / Date of best 2dF observation (DD/MM/YY) ID_ BEST = 'QSO ' / ID from best 2dF observation QUALBEST= 11 / Data quality flag from best 2dF observation Z_ ...

Permitted Context: SELECT . ... The OPTION element can only occur within a SELECT element. ... When the form is submitted, the NAME of the enclosing SELECT element is paired with the OPTION's VALUE attribute to contribute a name/value pair for the selection. ... CLASS . ... The string to be used together with the name attribute of the enclosing select element, when submitting the form. ... SELECTED . ... This attribute is used within menus to define shaped hotzones associated with this option's value. ...