... Allows webmasters to configure the response of Apache to some error or problem. Customizable responses can be defined to be activated in the event of a server detected error or problem. e.g. if a script crashes and produces a "500 Server Error" response, then this response can be replaced with either some friendlier text or by a redirection to another URL (local or external). ... New behavior . ... redirect to a local URL, or . ... Each new variable will have the prefix REDIRECT_ . ...

Next: Rebooting Up: Boots And Shutdowns Previous: The boot process in . It is important to follow the correct procedures when you shut down a Linux system. ... Alternatively, if your system has many users, use the command shutdown -h +time message , where time is the time in minutes until the system is halted, and message is a short explanation of why the system is shutting down. # shutdown -h +10 'We will install a new disk. ... The system is going DOWN for system halt in 10 minutes !! ...

and 42 % 27-11-1999 Andr\'as Holl % 2.31: 02-05-2001 % % Konkoly Observatory, Budapest, Hungary % Use the following documentstyle definition : % \documentstyle[twoside, ibvs2, epsf]{article} % or % \documentstyle[twoside]{article} % \input ibvs2.sty % \input epsf.sty % epsf is only needed for figures % IBVS.STY screen message \ typeout {} \ typeout {IBVS.STY Ver. 2.31 - 02-05-2001 } \ typeout {Information Bulletin on Variable Stars - Konkoly Observatory} \ ...

... To see the collection of prior postings to the list, visit the Qc_sciproc Archives . The current archive is only available to the list members. ... To post a message to all the list members, send email to qc_sciproc@eso.org . ... Your email address: . ... You may enter a privacy password below. ... Enter your address and password to visit the subscribers list: . ... To unsubscribe from Qc_sciproc, get a password reminder, or change your subscription options enter your subscription email address: . ...

... Image Processed by Al Kelly Explanation: Variable star V838 Monocerotis startled astronomers in January of 2002, undergoing a dramatic outburst like no other variable star known. Followed closely by ground-based instruments and the Hubble Space Telescope over the following months, it was soon realized that the quickly evolving dusty nebula surrounding V838 Mon was in fact made visible by "light echoes" from the outburst . ... Publications with keywords: v838 mon - light echo - variable star . ...

... See the REVTeX 3.0 README file for restrictions and more = information. ... Put the = label % that you will use with \ref{} command in the braces of the \label{} = command. % % \begin{figure} % \caption{} % \label{} % \end{figure} % tables follow here % % Here is an example of the general form of a table: % Fill in the caption in the braces of the \caption{} command. Put the = label % that you will use with \ref{} command in the braces of the \label{} = command. ...

Radio Interferometry Principles . Radio Interferometry Signal Processing . ... A radio interferometer consists of a pair of directional antennas that are tuned to receive radio emissions from a source in a desired RF band. ... The antennas are pointed at the radio source of interest and are set up to receive the signal and process it into a form suitable for transmission to the correlator. ... In connected element interferometry, the digital signal goes directly to the correlator. ...

A description of the XPA server-side programming interface. ... You then enter an event loop such as XPAMainLoop() to field XPA requests. #include xpa .h XPA XPANew ( char *class, char * name , char *help, int (*send_callback)(), void *send_data, char *send_mode, int (*rec_callback)(), void *rec_data, char *rec_mode); XPA XPACmdNew ( char *class, char * name ); XPACmd XPACmdAdd ( XPA xpa , char * name , char *help, ... Neither has to be an XPA server. ...

... Alien Life . ... During a mission planned to last a Martian year (nearly two of our years) after landing , Curiosity will use its instruments to investigate whether this area of Mars has ever enjoyed conditions suitable for life , especially the presence of liquid water.Lower layers of Aeolis Mons could reveal there was once a lake within Gale Crater long ago.But this is just the beginning of what ... Methane Not Detected by Curiosity Rover Does Not Rule Out Life on Mars . ... Astronotes...

... The Impact of HST on European Astronomy . ... These range from the study of nearby planets, the processes of star and planet formation, the stellar and interstellar components of galaxies, the discovery that most, if not all, galactic nuclei harbor a massive black hole that profoundly affects their evolution, to the realisation that the universe as a whole is undergoing acceleration as a result of a yet unknown form of dark energy . ... Formation, structure and evolution of galaxies . ...

... meta-spam: advertisements of lists of email addresses and tools to send spam. ... Never, never inform the spammer that you have received his message. ... Suppose you get some spam with these headers (real example): Return-Path: 29111238@ix.netcom.com Received : from main.mccme.rssi.ru (main.mccme.rssi.ru [193.232.215.1]) by mccme.ru (8.8.5/8.8.5) with ESMTP id KAA04007 for webmaster@mccme.ru ; Thu, 5 Feb 1998 10:03:19 +0300 From: 29111238@ix.netcom.com Received : from mail.medford.net ( ...

... Satellite data ] . SMIS ] . ... NOAA satellites . Telemetry Data Format . ... METEOR-3M Satellite Pass Schedule . Telemetry Archive Catalog . Last telemetry files . ... Data Processing Examples . ... Caspian Sea (server "SPUTNIK") . GOMS satellite (server "SPUTNIK") . Archive Directory . Latest Data . ... RESURS 01 satellite (server "SPUTNIK") . Operational Archive (MSU-E Data) . ... METEOR satellite (server "SPUTNIK") . ... OKEAN satellite (server "SPUTNIK") . ...

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/ . ...

... Bad Astronomy . Misconceptions . ... What Color is Mars? ... Hoagland's Credentials . ... There have been all sorts of silliness happening from the usual groups, including claims that the Beagle II failed because the U.S. shot it down, aliens on Mars shot it down, aliens on Mars are known by NASA, NASA is covering up alien artifacts, NASA is causing bad weather on Earth, NASA is the devil, etc. Leading the way with this nonsense is none other than Richard C. Hoagland. ... 2008 Phil Plait. ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Star Atlas . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... variable stars . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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). ...

... Michael E. Lopez-Alegria (Captain, USN, RET.) ... After his second mission, he led the International Space Station (ISS) Operations branch of the Astronaut Office. ... In October 2014 Lopez-Alegria became an independent consultant; he is based in Washington, D.C. SPACE FLIGHT EXPERIENCE: Mission Specialist (MS)-2, STS-73 Columbia (October 20 to November 5, 1995). ... The primary mission objective was delivery of the Expedition 6 crew to the ISS and the return of the Expedition 5 crew to Earth. ...

... Next, the screen displays "Press 0 to align or Mode for Menu." Press "0" if you wish to begin Automatic alignment (or Easy Align, depending on your telescope model), or press Mode if you wish to choose a manual alignment method ("Automatic Alignment" displays, and you can press MODE to go through the menu to find other alignments). ... Note: If you press the "?" key while "Ctr Brightest Star" displays, the alignment star that AutoStar has chosen will display. ... Alignment successful" displays. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The ionogram catalogue is divided into the data file and the key file. ... The station codes database consists of the data file and two key files. ... This database consists of the data file and the key file. ... The antenna DB consists of two interrelated databases. ... The data file contains the following information: antenna type, antenna name, antenna parameters names, measurement units, and ranges of parameters. ...