... pixel--pixel space: corresponds to 2D raw images, with the sampling units PIXEL in both dimensions. pixel--order space: corresponds to 2D extracted images, produced by the command EXTRACT/ECHELLE . Unit in the x --axis is PIXEL , unit in the y --axis is ORDER , sequential echelle order number. wavelength--order space: corresponds to 2D extracted images, with uniform sampling steps in wavelength, produced by the command REBIN/ECHELLE . ... These images are produced by the command MERGE/ECHELLE . ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

TUI supports the following offsets: . Object Arc offset by a given amount on the sky (i.e. along the arc of a great circle). ... Arc offsets are useful for moving a different portion of your object or a different nearby object onto the boresight . ... Object Arc XY this is identical to an Object offset except that it has been rotated to align along the instrument x-y axes. ... This is just like the Calibration XY offset, except that it is typically cleared when you slew to a new object. ...

... This function can also be used for particular types of subtypes or kinds: KIND (0) integer KIND (0.0) floating point number KIND (.FALSE.) logical variable KIND ("A") string of characters There is an intrinsic function SELECTED_REAL_KIND , which returns the kind of the type REAL that has a representation with (at least) the precision and the exponential range requested. ... With the choice SELECTED_INT_KIND (5) all integers between (but not including the limits) -100 000 and +100 000 are permitted. ...

... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

Sed's command line syntax essentially means this: . ... sed 's/^\(.......\).*$/$do copy_visit_into_lrp 98259A 98259X \1/' ~jordan/98285 . sed . invokes sed. what follows is the script which is placed inside single quotes: . ... The first "/" is the beginning of the pattern matching delimiter. ^ . ... end grab.* . ... end of line! . ... Use of a file ~jordan/sed_script to store a sed script which is difficult to do from a command line. The script file ~jordan/sed_script contains: . ...

SAS home . SAS Watchout items . ... This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, subtracting the background and correcting for exposure loses. ... The SAS task barycen performs this correction. ... If the following files are available: a) RGS event list; b) RGS source list, a call to the task performing light curve extraction, correction and background subtraction rgslccorr allows a user to create the light curve. ...

... Data may be optionally rescaled. copyheader copy header keywords from one FITS file to another ( see also FTOOL cphead ). copywcs copy just the World Coordinate System keywords from the header of one FITS image to others. fcolappend append a constant column to a FITS table fitsparsename Prints components of the extended FITS file name. fitspha convert ASCII files to FITS PHA ( See also listhead supplied with FITSIO. modifyheader modifies FITS header. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 21, 1999 . Follow The Spots . Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA . ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... About APOD > . ...

Remembering the name of a command and how it is used can be difficult. Assigning your own name for a command - an alias - is very easy. Assigning an alias is done with the command: alias name definition . The syntax of the alias command is different for each shell. Follow the guidelines and examples for the shell that you are using. ... Creating an alias with the C shell . ... Creating an alias with the Korn shell . Creating an alias with the Bourne Again SHell . ...

The following files list line and continuum emissivities from the Arcetri Spectral Code. ... Ne = 10^8 g-zipped file (phot cm^3 s^-1); Ne = 10^8 g-zipped file (erg cm^3 s-1) . ... File format (html): File format for the continuum files . ... File format (html): File format for binned line emission files The following files list transitions whose emissivities have values greater than a fixed amount (10^-19 phot s^-1 cm^+3 and 10^-30 erg s^-1 cm^+3 respectively): . ...

ERS -1,2 SAR . ... SIR-C/X SAR . ... European Remote Sensing Satellite (ERS-1) was launched on 17 July 1991, and the follow mission ERS-2 (with the same sensors and an Ozone monitoring instrument added) was launched on 21 April 1995. ... The Spaceborne Imaging Radar-C/X-band Synthetic Radar (SIR-C/X-SAR), carried in the cargo bay of the Space Shuttle Endeavour in April and October of 1994, simultaneously recorded SAR data at three wavelengths (L-, C-, and X-bands; 23.5, 5.8, and 3.1 cm, respectively). ...

... Next: 7 kslice_3d: slicing data Up: Karma User Manual Previous: 5 Volume Rendering a . The <kpvslice> programme allows you to use a two-dimensional image to define a slice through a three-dimensional data cube. ... The slice is drawn on the total column density or velocity field map, and the corresponding position-velocity diagram will appear in the other window. ... To load the cube, press the Cubes button in the left window and select a cube file. ... The image is displayed in the left window. ...

... Team . ... The main goal of observations of GRB host galaxies is accumulation of statistics of their spectroscopic and photometric properties. ... The Hubble diagram for 22 GRB host galaxies with known magnitudes and redshifts (GRB 970228, GRB 970508, GRB 970828, GRB 971214, GRB 980613, GRB 980703, GRB 990123, GRB 990510, GRB 990712, GRB 9912008, GRB 991216, GRB 000131, GRB 000210, GRB 000301C, GRB 000418, GRB 000911, GRB 000926, GRB 001109, GRB 010222, GRB 010921, GRB 011121 and GRB011211). ... 600...

... The orbits as follows are considered: INTERBALL Tail Probe (IB_TAIL) & Auroral Probe (IB_AUR), GEOTAIL (NASA/ISAS), and POLAR (NASA). ... The situation investigation aim is to select the following favourable spatial positions (FSP) : . ... FSP3 : That part of the FSP1 & FSP2 time intervals, which corresponds to the magnetic conjugations of the any couple of the considered spacecraft. ... The polar diagram plot . ... The geocentric distance (GCD) of the 4 spacecraft as a function of the time. ...

Blackholes Forum Message . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums | Blackholes I | ... There Are Two Different Situations Here! Forum List | ... Back to Thread Topics | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Distribution of the analyzed SEPs with different >100 MeV proton fluxes ( J 100 ) at the microwave flux density plane ' S 9 vs. ... 1) General correspondence takes place between intensities of microwave bursts and proton fluxes - J 100 increases when S 9 and S 15 rise. ... 3) Powerful microwave bursts ( S 9 , S 15 >3000-10000 sfu ) with hard radio spectra ( S 9 < S 15 ) correspond to majority of powerful proton fluxes ( J 100 >10 pfu ). ...

... If You Have Neither OS/2 Dual Boot Nor OS/2 Boot Manager -------------------------------------------------------- If you want to remove OS/2 from your computer but want to save the data on your hard disk first, carry out the following procedure: To remove OS/2 and save the data on your computer: 1. ... Back up the data files you want to keep onto floppy disks by using the COPY command. ... Reinsert Setup Disk 1 in drive A (the startup drive). ... Restart your computer by pressing CTRL+ALT+DEL. ...

... Laboratory for Spectroscopy of Molecular Structures . ... Optics and spectroscopy of molecular and liquid crystals, fullerenes, superthin molecular films. Optical studies of structure, phase transitions, pretransitional phenomena, structural modifications in external field and under high pressure. ... Methods developed in the laboratory enable to determine in free standing films of different types liquid crystals values of polarization, two-dimensional constants of orientational elasticity. ...

... Using the uvby -photometry and proper motion data for about 5500 F stars within 80 pc from the Sun, we have studied velocity ellipsoid parameters and obtained the following results. 1) The sizw of all wllipsoid semiaxes increase systematically for groups of stars with the decrease of both temperature (at constant metallicity) and metallicity (at constant temperature). ... As a result, each of the three parameters - temperature, metallicity and velocity dispersion - is an age indicator. ...