Next: Examples of Setup Files Up: Setup Files Previous: Setup Files Contents . Over 200 standard setup files have been created, covering many of the normal modes of observing. ... These especially include precisely defined, and somewhat complex cases like the Mark III standard modes (although MarkIII went the way of the dinosaur long ago. ... v '' files: . These are setup files for VLBI observations using VLBA recording formats. ... These are setup files for Mark III observations. ...

... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...

Next: Buffer Manipulation Up: Programming in C Previous: Compiler Options . Listed below are nearly all the ANSI C standard library functions. The header file where related definitions are stored are given. These may vary on some systems so check local reference manuals. ... More info can be obtained from online man calls or reference manuals. Buffer Manipulation . Character Classification and Conversion . ... File Manipulation . ... Wed Sep 14 10:06:31 BST 1994 ...

... Posts tagged ?parameter estimation? ... Leccardi & Molendi (2007) have a paper in A&A ( astro-ph/0705.4199 ) discussing the biases in parameter estimation when spectral fitting is confronted with low counts data. Not surprisingly, they find that the bias is higher for lower counts, for standard chisq compared to C-stat, for grouped data compared to ungrouped. ... Tags: bias , C-stat , chi-square , chisq , Cstat , Fitting , parameter estimation , Peter Freeman , spectra . ... 1 Comment . ...

... Contact John Barentine (primary) or your Observing Specialists (secondary) for additional information. Contact Jack Dembicky for web page errors, corrections, ommisions, or additions. Last updated 14 July 2003 by JMD . Last link checked 14 July 2003 by JMD . The following are offered as primary near-infrared spectrophotometric standard stars ( Bohlin, Dickinson and Calzetti, AJ 122, 2118 (2001) ): . ... RA 2000.0 . ... ARNICA Near-Infrared Standard Stars from Lick Observatory . ...

... A Hubble diagram for Quasars . ... The potential use of such relation as a cosmological probe is obvious: assuming no redshift evolution of the relation, the observed X-ray flux is a function of the observed UV flux, the redshift, and the parameters of the adopted cosmological model. ... In this framework, Guido Risaliti and Elisabeta Lusso (INAF-Arcetri Observatory) have recently published in the Astropysical Journal the first Hubble Diagram for quasars suitable for cosmological measurements . ...

Very important in the introduction of a new programming language standard is that old programs (at least those who obey the outgoing standard) can be used once again, with the new standard. When we went from Fortran 66 to Fortran 77 the extended DO -loop was removed (the extended DO -loop means that if you do not change any of the DO -loop parameters you can jump out of the loop and then jump in again (this is somewhat contrary to the concept of structured programming). ... 2, June 1993, page 1. ...

Shell scripts can act like standard UNIX commands and take arguments from the command line. Arguments are passed from the command line into a shell program using the positional parameters $1 through to $9 . Each parameter corresponds to the position of the argument on the command line. ... For example: cat printps # This script converts ASCII files to PostScript # and sends them to the PostScript printer ps1 # It uses a local utility "a2ps" a2ps $* | lpr -Pps1 printps elm.txt vi.ref msg . ...

... commands . ... data_spectrum <name> : data in "spectrum" format . ... Repeat command to add additional mask regions. sigma is the s.d. to apply to the data within the region to be masked. ... Repeat command to add additiona continuum regions. ... cont_reg_clear : Clear current continuum regions . ... The observed spectrum is then multipled by this filter to obtain a new spectrum for use by SFIT. cont_sigma : Computes standard deviation of data in continuum regions and applies it to current data . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

The original files with the data were in different formats. ... Such files were named "standard data files" and linked to the database. They