... omdetect (omdetect-5.14.2) [?? Meta Index / Home Page / Source Flagging Algorithms Since the object producing a read-out streak may lie outside the image, another algorithm is also used by omdetect. ... nMin = int( 0.6 (ny + 1)) where ny is the number of rows in the image (image height) . ... Loop through all the columns of the image . ... n4 = count(image(i0, :) image(i0 + 1, :) ) Count the number of pixels along column i0 that have a greater value than their neighbour in column i0 + 1 . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Carry around the universe's top numbers . ... My June story, т??The 6 most important numbers in the universe,т?? centered on the most significant values that come up in astronomy. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... 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 . ...

... Chapter 5: Visits, Exposures and Exposure Groups > 5.1 Visit Number and Status . ... Visit_Number] . You must assign each visit a unique visit number (base 36 values ranging from 01 - ZZ). Visit_Status . This field reflects the visit?s execution status and cannot be edited. ... Visit_Status can have the following values: pi, implementation, scheduling, completed, failed, withdrawn. Note that visits with a status of "completed" or "failed" cannot be edited in APT. ...

... 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. ...

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. ...

... For the alfa data taken with the wapps, the users need to map the spectral channels to frequency and velocity. ... The RF frequency for the center of the band (fits keyword: CRVAL1). The the pixel number of this frequency (fits keyword: CRPIX1). ... You also need to be aware that for an even number of pixels, flipping the spectra (changing the sign of CDELT1) changes the pixel number for the center (e.g... ... The number 1 is in channel 3 (0 based). ... The band was centered at 1400 Mhz. ...

Next: Member Functions (functions) Up: Interface Previous: Integer Indices are 0-relative Index . The ASAP interface is based around a number of ``objects'' which the user deals with. Objects range from the data which have been read from disk, to tools used for fitting functions to the data. ... A tool used to plot the spectral line data . ... A tool used to fit functions to the spectral data . ... A tool which can be used to read data from disks into a scantable object (advanced use). ...

... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...

... 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. ...

Next: Writing FITS Up: Conversion between FITS Previous: File naming . The INTAPE -command is used to convert FITS (or IHAP) files to the internal MIDAS format: INTAPE file_list id device [flag] . where file_list is a list of absolute position numbers of files (if input is from tape) to be read with 1 being the first file ( e.g. 1, 3, 5, 50-60 would read from the 1st, 3rd, 5th file plus files 50 through 60 included), and id is an identification prefix of the names of the files created. ...