... The door of the control box was "open" in one case, and "closed" in the other. For this to be a meaningful test, the ALFA feeds were uncovered (to allow sampling of the possible interference), but the array was deliberately not kept at the focus (to reduce possible confusion from sky contribution as well as the usually expected RFI at L-band). ... The left and bottom panels show average spectrum (black), auto/cross-correlation for pairs at the same frequency (green) and the efficiency (blue). ...

. The shell provides you with one or more of the following features. You can: . create an environment that meets your needs . write shell scripts . define command aliases . manipulate the command history . automatically complete the command line . edit the command line . Some shells provide more of these facilites than others. Summary table .

Astronomy Picture of the Day . An Unexpected Aurora over Norway . ... 4.05.2015 . ... Credit Copyright: Tommy Richardsen Explanation: Sometimes the sky lights up unexpectedly. A trip to northern Norway to photograph auroras was not going as well as hoped. It was now past midnight in Steinsvik , Troms , in northern Norway , and the date was 2014 February 8. ... When the sky suddenly exploded with spectacular aurora . ... Publications with keywords: aurora . ... Aurora over Clouds . ...

The Russian Parliament will soon consider a bill that would restructure the Russian space program, 35 years after the launch оf Sputnik. ... But the legislation's most striking and controversial feature is a provision that would ban testing and deployment оf space weapons ? including anti-satellite weapons and space-based missile interceptors. ... A draft bill was written by a group of experts within the Moscow Space Club, several of whom now work on space issues with the Russian Parliament. ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 02 - 08.09.2013, Forecast on 09 - 16.09.2013, Carrington Rotation 2041 (31,87.08.2013) SUNSPOT-FORMING ACTIVITY OF THE SUN REMAINED AT THE AVERAGE LEVEL BUT AFTER 5.09 - THE LOW. WEEKLY, THE AVERAGE OF SUNSPOT NUMBER IN THE INTERNATIONAL SYSTEM WAS MADE W=035+15/-21. ... NEXT WEEK THE LEVEL OF SUNSPOT ACTIVITY IS EXPECTED TO BE THE LOW AND AVERAGE LEVEL. ... FLARE ACTIVITY WAS FOR AT A LOW LEVEL, BUT AFTER 6.09 - AT A VERY LOW LEVEL. ...

In the PROJECT we are using the following peculiar . features of RATAN-600 . ... Brightness temperature sensitivity being equal to the antenna temperature sensitivity .. ... Receiver system .. ... Using aperture averaging effect. dual- beam and dual (multi-) frequency filtration, we demonstrated full filtration of the atmosphere noise down to the receiver noise at all scales of acoustics peaks ( Fig.1 , Fig 2 ). ... We select this frequency as the central one in our project. ... Antenna surface . ...

... Satellites of the planets are assigned a provisional designation (indicating year of discovery) by the Central Bureau for Astronomical Telegrams ( CBAT ) upon satisfactory demonstration of the existence of a new object. ... In the past, Comets were first given a provisional designation, consisting of the year and a lowercase letter indicating the order of discovery in the year (e.g., 1994a was the first comet discovered or recovered in 1994, 1994b the second, etc.) ... Names .. ...

... Magnetic storms online . ... Geomagnetic activity forecast . ... September : 2015 . ... No magnetic storm is expected . From 10 September 2015 to 6 October 2015 the following magnetic storms and disturbances are expected: . October 05, 2015 geomagnetic disturbances . September 12, 2015 geomagnetic disturbances . ... September 21, 2015 geomagnetic storm of level G1 (minor) . ... September 20, 2015 geomagnetic disturbances 10 September 2015 - 6 October 2015 . 09.09.2015 . ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

Next: Black Hole Creation in Up: No Title Previous: Periodic radiosource LSI+61 303 . Several candidates for binary BH with optical companions are known at present (see van Paradijs and McClintock, 1993,[ 208 ] for a review). They must be products of the evolution љ of binary systems with massive companions. Lipunov et al. (1994b)[ 124 ] calculated the expected number of BH+PSR binaries following directly from the modern scenario of binary star evolution using the Scenario Machine. ...

... 17.1 New features . ... Pure procedures . ... A function NULL to nullify a pointer . ... Complete version of END INTERFACE Pure functions are functions without side effects, and elemental functions are pure functions with only scalar arguments and with scalar result. ... Elemental functions are pure functions with only scalar dummy arguments (not pointers or procedures) and with scalar result (not pointer). That a function is elemental can be indicated with the new ELEMENTAL prefix. ...

MAKING THE PROFILES . First of all you are expected to load a FITS file ("FILE"-"LOAD"). ... By pressing the middle button you copy the profile from the first profile window to the second one. ... An example: first integral can correspond to the profile of active region and second integral can correspond to the profile of quiet chromospheric region. ... The second profile (which is subtracted from the first one) you extract after clicking on "SUBTRACT"-"MARK QUIET PROFILE" and marking the region. ...

slitless -- Extract a spectrum from a direct/GRISM image pair slitless image grism output PARAMETERS . ... A two dimensional direct image to be used to select an object. grism . A two dimensional GRISM image containing slitless spectra of objects present in the direct image. output . ... Toggle whether or not a background estimate is subtracted from the extracted object spectrum. mingood = INDEF . Pixels of the grism image with values smaller than this are ignored. maxgood = INDEF . ...

... AMPLE (Adaptable Minor Planet Ephemerides) is integrated software package to deal with a number of problems concerning minor planets with the aid of IBM-type personal computer. ... compiling a list of all numbered minor planets which can be seen at certain moment within specified sky region and visualization of their mutual positions; . ... As AMPLE is able to reproduce virtually any table of "the Ephemerides of Minor Planets" , it may be considered as computer version of the EMP. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Following the Martian Coastline . ... It seems scientists and laypeople alike have wondered for quite a long time whether or not water exists on Mars. ... A second reason we should determine the sites of ancient Martian seas is that if water once existed on Mars, it is possible that conditions for life obtained on the planet in the past and possibly even persist into the present. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... From the top-level of the Apache source tree, type: cd support [ENTER] . ... From support/suexec.h /* * HTTPD_USER -- Define as the username under which Apache normally * runs. ... See the suEXEC documentation for more detailed * information. */ #define USERDIR_SUFFIX "public_html" /* * LOG_EXEC -- Define this as a filename if you want all suEXEC * transactions and errors logged for auditing and * debugging purposes. */ #define LOG_EXEC "/usr/local/apache/logs/cgi.log" /* Need me? ...

. This is a new popup window - close it when you are done . Submitted by Bruce Berger on 03/14/2007 11:14:36 . Scopes for Sale at the Beijing Planetarium . I was surprised that the prices were close to what you'd spend online at Orion Telescopes. I expected them to be much less. But hey, this WAS a museum so I shouldn't have expected any bargains. Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

... The goal of this course is to introduce some -- very interesting -- basic examples and notions of combinatorial game theory, following the book "How to win your mathematical games", by Berlekamp, Conway and Guy. ... So, for every game there is a winning strategy, and to find one one can use the well-known idea of winning/losing positions. ... Temperature theory. We will see the limits of the association of numbers and games: some positions can not be associated to a single real number! ...

... Dale A. Gardner . NASA Astronaut (deceased) . ... NASA EXPERIENCE: б  Gardner was selected as an Astronaut Candidate by NASA in January 1978, reporting to the Johnson Space Center in July 1978.б  In August 1979, he completed a one-year training and evaluation period, making him eligible for assignment as a mission specialist astronaut .б  He subsequently served as the Astronaut Project Manager for the flight software in the shuttle onboard computers leading up to the first ...