... The quickest way to learn how each observation was performed is to use the iminfo task in the STSDAS toolbox.headers package to look at the headers of the science data. ... Number of extensions . ... Given that NICMOS data files contain multiple extensions, the number of the desired extension must always be specified. ... In order to simplify access to NICMOS FITS image extensions, each extension header contains the two keywords: EXTNAME (extension name) and EXTVER (extension version number). ...

... psrfits2fil converts AO psrfits files from the pdev spectrometer to sigproc filterbank program. This standalone routine will probably one day be incorporated in the sigproc filterbank program. psrfits data taken with the mock pdev spectrometer is scan based. ... The routine will read all of the psrfits files from a scan and output a single sigprog.fil file. ... Output to a single file with same format as input: . ... The psrfits files for the test data are located in /share/pdata1/pdev/ . ...

To read the current message: <Return> . This will display the current message, as indicated by the > symbol. To display a message by its number: 5 . This will display the contents of message number 5. To display a range of messages by number: 4-7 . This will display messages 4 through 7, starting at message 4. ... To display all the messages from a specific user: p bob . This displays all the messages in your mailbox from the user bob , starting from the first message received. ...

Astronomy Discussion Forums . ... A Number Is A Very Specific Thing . ... Post Message | ... Posted by Harvey on October 9, 2002 16:41:15 UTC . ... When you use the word 'number', you are introducing a specific kind of symbol that is known within the context of mathematics. ... You know what - harvey1 - October 9, 2002 - 20:53 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Plot vectors may be generated in several ways: . a. You may read the vectors from a file using the read command The file is expected to be an ASCII file of columns of numbers (separated by spaces or commas). You define the file to SM using the data command, and associate a column or row of numbers with a SM vector using the read command. ... I can also read a row from the file, instead of a column, by saying read row x 1 Note that the vector is defined by the read command. ...

... The Multiple Extension FITS (MEF) file interface is an IRAF library providing facilities for general file operations upon FITS multi-extension files. ... The Multiple Extensions FITS (MEF) interface consists of a number of routines to mainly read a FITS Primary Data Unit or an Extension Unit and manipulate the data at a file level. ... Read the FITS header of a MEF file that matches the EXTNAME or EXTVER keyword values or if not specified, read the extension number `group'. ... The header filename. ...

... List of Tables . ... How to use the MIDAS Manual . ... Commands . ... Executing System Commands . Some Useful Commands . Monitor and Command Language . ... Specifying Pixels in an Image . ... Command Syntax . Command Recalling . Command Line Editing . Command Line Suspension . ... MIDAS Command Language . ... Using Catalogs in MIDAS Procedures . ... MIDAS User Levels . ... Command Overview . ... Graphic and Image Display . ... Graphic Cursor Commands . ... Using Image Memories . ...

... Class . ... ImageJ Plugin for reading an AVI file into an image stack (one slice per video frame) Version 2008-07-03 by Michael Schmid, based on a plugin by Daniel Marsh and Wayne Rasband Restrictions and Notes: - Only few formats supported: - uncompressed 8 bit with palette (=LUT) - uncompressed 8 16 bit grayscale - uncompressed 24 32 bit RGB (alpha channel ignored) - uncompressed 32 bit AYUV (alpha channel ignored) - various YUV 4:2:2 compressed formats - png or jpeg-encoded individual frames. ...

gmtconvert - Convert between ASCII and binary 1-D tables gmtconvert [ inputfiles ] [ -H [ nrec ] ] [ -M [ flag ] ] [ -V ] [ -: ] [ -bi [ s ] n ] [ -bo [ s ] ] gmtconvert reads its standard input [or inputfiles] and writes out the information to standard output. ... Input (and hence output) may have multiple subheaders if -M is selected. datafile ( s ) ASCII (or binary, see -bi ) file(s) holding a number of data columns. ... If used, GMT default is 1 header record. M Multiple segment file(s). ...

... An international panel of experts led by NOAA and sponsored by NASA has released a new prediction for the next solar cycle. Solar Cycle 24 will peak, they say, in May 2013 with a below-average number of sunspots. ... Predicting the behavior of a sunspot cycle is fairly reliable once the cycle is well underway (about 3 years after the minimum in sunspot number occurs), but p rior to that time the predictions are less reliable. ... International Year of Astronomy, Ireland National Node . ...

Present section contains two Tables: the first one lists the names of all minor planets in alphabetic order as of the last updating of the Table. ... For each minor planet the Table, apart from number represents also the name of minor planet, if any, and its principal preliminary designation. ... Apart these preliminary designations special ones are used for minor planets discovered in the course of special surveys, undertaken between 1960 and 1977. ... Survey . ... Second Trojan Survey (1973) . ...

XMM-Newton Science Analysis System Page: 1 elcbuild July 9, 2007 Abstract elcbuild takes a set of NTimeSeries time series which must contain the ve columns: RATE; ERROR; BACKV; BACKE; and FRACEXP, as its input. ... This output le can then be plotted by the task lcplot. lcplot generates a plot of both net and background count rates, for each time series. elcbuild reads each input le and takes the values of the keywords E MIN, E MAX from their RATE extension. ...

... IRAF Multiple Extensions FITS (MEF) Files Interface Nelson Zarate National Optical Astronomy Observatories Tucson, AZ 85719 (zarate@noao.edu) Abstract. ... If there are no values to match then `extver' should be INDEFL. 3.2. mef rdhdr gn (mef,group) Read extension number `group'. ... The header should have been read by now. mefo The output file MEF pointer returned by mef open. 4.2. mef copy extn (mefi, mefo, group) Copy a FITS extension given by its number `group' into an output file. ...

... Tables for transformation from sidereal to universal time scale. Explanations. This page contains three little tables headed Hours Minutes Seconds respectively. Each the table have two columns: first of them is input column where time in whole time units of sidereal time is given, and second of them is output column where hours:minutes:seconds of universal time is presented. ... Example: transform 02 h 12 m 22.00 s from sidereal to universal time. ...

... In the first implementation of optional raw data output in CONSTRICTOR, NPOI raw data of a scan was written into a single HDS formatted file. ... Sub-scan files can still be read individually, but the standard procedure is to read and concatenate at least the time stamps and delay line metrology data from all sub-scans, and then to read the fringe data individually. get_rawdata ,[ file_spec _char ] Procedure to read raw time and delay data from one or more sub-scan files specified by file_spec . ...

For all keywords that contain a red and a blue value, the blue value comes first. ... The full pathname, but without the trailing "b.fit" and "r.fit", that would be given to the next exposure if the basename argument is not given to the expose command. ccdHeaters=float,float . ... bluelambda2=float [M] . The center wavelength for the given grating: the 1 or 2 indicates the grating bay. The bluelambda and redlambda keywords match one set of these, depending on the position of the turret. ...

... Arithmetic Functions . Random Numbers . String Conversion . Searching and Sorting . ... There are 4 basic integer functions: . int abs(int number); long int labs(long int number); div_t div(int numerator,int denominator); ldiv_t ldiv(long int numerator, long int denominator); . ... In practice no functions produce truly random data -- they produce pseudo-random numbers. ... The stdlib.h provides 2 useful functions to perform general searching and sorting of data on any type. ...

... Behemoth black hole found in an unlikely place . ... black holes . ... Observing springtime deep-sky objects with a large telescope . ... Could large numbers of black holes account for much of the "dark matter" estimated to exist in our universe? ... NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) No, because the universe never had the raw material to grow enough black holes to account for current estimates of dark matter. Get instant access to subscriber content on Astronomy.com! ...

This module provides support for dynamically configured mass virtual hosting . ... Source File: mod_vhost_alias.c . ... For simple name-based virtual hosts you might use the following directives in your server configuration file: UseCanonicalName Off VirtualDocumentRoot /usr/local/apache/vhosts/%0 . A request for http://www.example.com/directory/file.html will be satisfied by the file /usr/local/apache/vhosts/www.example.com/directory/file.html . ... Module: mod_vhost_alias . ...

... Posts tagged ?mixture? ... Posted by hlee . A number of practical Bayesian data analysis books are available these days. ... Category: Bayesian , Fitting , Languages , MC , MCMC , Methods , Stat | ... One of the speakers from the google talk series exemplified model based clustering and mentioned the likelihood ratio test (LRT) for defining the number of clusters. ... Tags: LRT , mixture . Category: arXiv , Bad AstroStat , CHASC , Frequentist , Stat | ... Category: arXiv , Frequentist , Stat | ...