... The technology needed to implement a Distributed Astronomical Data Archive (DADA) is available today (e.g., Fullton 1993). Query interface standards are needed, however, before the DADA information will be discoverable. ... These parameters would be used to index each dataset in each catalog. ... The technology is available today to perform cross-catalog queries, to fetch the data at the click of a mouse, quickly to add new observation catalogs, and to distribute the load across multiple machines. ...

. Next: Initial velocity Up: Space and velocity distributions Previous: Space and velocity distributions . Following Paczynsky (1990), we assume initial space distribution of young neutron stars to be varying exponentially with distance from the Galactic center and from the Galactic plane, that is probability distribution for young neutron star positions can be written in the form . with kpc, and pc. Mike E. Prokhorov . Fri Jul 19 19:16:07 MSD 1996

... The first of the equations defines the position of the spectral orders, m , in the raw image, while the second equation gives, for each order, the dispersion relation in one dimension. ... where the coefficients are computed using least squares techniques on a grid , i.e. sample number and line number of points located within the spectral orders of the image. These points in the grid are found automatically by an order--following algorithm, normally using the FLAT or STD image. ...

... CentralProcessor 0.11 documentation . Calibration and Imaging Documentation . The cmodel pipeline task is responsible for extracting a local sky model (LSM) from the global sky model (GSM) and building an image from the components and/or images resulting from the request. ... MPI wrapper> cmodel -c config.in . ... None . ... If Cmodel.gsm.database is set to asciitable then a row/column (space separated) file is used as the global sky model source. ... cmodel (Model Image Generator) . ...

Next: Implementation Up: Compensation for Read-Out Noise Previous: Compensation for Read-Out Noise . Various methods are being used to compensate for the resolution loss that is present in image data acquired by the Hubble Space Telescope. ... There are a variety of noise sources present in HST image data acquired with a CCD camera. ... We use the term background counts for the cumulative effect of these extraneous electrons. Background counts are Poisson distributed. ...

... The following algorithm shows the rough details of these calculations. ... Similarly the energy selection region for the reflection order of the output matrix is converted to the array called banana. // analyze the exposure maps within the spatial selection regions FOREACH node FOREACH b = dispersion channel of node src.exposure[ node ,b] = EXPMAP node [b] summed over src.spans[ node ,b] bkg.exposure[ node ,b] = EXPMAP node [b] summed over bkg.spans[ node ,b] D = EXPMAP ...

Procedure to be followed by DMD secretary for DFS Group documentation . Initial email comes from author requesting document number. ... An email is then sent by the DMD secretary to the Technical Archive (tecarch@eso.org) with the same information, to request the last 4 digits of the document number (the 'chronological number'). ... Some time will pass and then the author, using the DFS Group tool 'WebCheck', will post a web readable version of the document on the DFS Group website. ...

... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

The initial orbital data are distributed in the F1 format, which contains orbital elements as a the state vector (the spacecraft position and velocity vector) in the inertial frame (Standard reference of the Earths Equator and Equinox J2000). ... The Format number . 0001 . The Message number . ... 00001 . ... 001451.596 . ... 008276.384 . ... 000000.000 . ... The F1 format for this data looks as follows: . INT/ITZ/01/0001/01/00001/ . ... 001451.596/-008276.384/+000000.000/ . ...

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

... Classes . ... Nebula Class Reference . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getCloseViewFov (const StelCore *core=NULL) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getSelectPriority (const StelCore *core) const . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (con