Astronomy Picture of the Day . Gravity Probe B Confirms the Existence of Gravitomagnetism . ... 10.05.2011 . ... Credit Copyright: Gravity Probe B Team, Stanford , NASA Explanation: Does gravity have a magnetic counterpart? Spin any electric charge and you get a magnetic field. ... In a bold attempt to directly measure gravitomagnetism , NASA launched in 2004 the smoothest spheres ever manufactured into space to see how they spin . ... Publications with keywords: gravity - gravity Probe B . ...

... 2011 May 10 . Gravity Probe B Confirms the Existence of Gravitomagnetism . Credit: Gravity Probe B Team, Stanford , NASA . ... In a bold attempt to directly measure gravitomagnetism , NASA launched in 2004 the smoothest spheres ever manufactured into space to see how they spin . ... The results, which bolster existing findings , may have untold long term benefits as well as shorter term benefits such as better clocks and global positioning trackers. ... About APOD | ...

... Directives | ... Apache HTTP Server Version 2.2 . ... This module controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... access . ... If set to On , the headers will be added to served documents according to the criteria defined by the ExpiresByType and ExpiresDefault directives ( q.v. ). ...

SAS home . SAS Watchout items . ... This thread contains a step-by-step recipe to extract a light curve of a point-like source for all the X-ray cameras, subtracting the background and correcting for exposure loses. ... The SAS task barycen performs this correction. ... If the following files are available: a) RGS event list; b) RGS source list, a call to the task performing light curve extraction, correction and background subtraction rgslccorr allows a user to create the light curve. ...

This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

... Directives | ... Apache HTTP Server Version 2.2 . ... Generation of Expires and Cache-Control HTTP headers according to user-specified criteria . ... This module controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses. ... ExpiresByType . ... This directive defines the value of the Expires header and the max-age directive of the Cache-Control header generated for documents of the specified type ( e.g. , text/html ). ...

Russian Space Science Internet (RSSI) is a successful result of RSSI Project. ... space oriented organizations; . ... RSSI offers for its members : . ... videoconferences via MBONE Internet protocol (there are 2 tunnels available now through the general IP network: one to NASA Internet, and another to Moscow State University); . ... It is designed so that all organizations connected to the RSSI gain access to the resources of Russian computer networks as well as world wide Internet. ... nic@rssi.ru ...

Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

ARTI, 1999 , ARTI, 2000 , ARTI, 2001 , . LVOV, 1993 , LVOV, 1994 , LVOV, 1995 , LVOV, 1996 , LVOV, 1997 , LVOV, 1998 , LVOV, 1999 , LVOV, 2000 , LVOV, 2001 . MOSCOW, 1992 , MOSCOW, 1993 , MOSCOW, 1994 , MOSCOW, 1995 , MOSCOW, 1996 , MOSCOW, 1997 , . MAGADAN, 2000

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. Planetary Approach . "Final Stage of the Hohmann Transfer" . Previous . Main . Next .

... This paper describes the main algorithms used by the Einstein Level One processing to create the exposure masks and the background maps for Einstein IPC images, and how these algorithms were recreated in the IRAF environment. Our goal was to recreate the algorithms used by the Level One Processing to create exposure masks and background maps for Einstein Image Proportional Counter (IPC) data (cf. sections 2.5 and 2.7 of Harnden et al. ...

... We present methods of comparing theoretical predictions for the anisotropy of the Cosmic Microwave Background Radiation (CMBR), with the results of various experiments. ... Temperature flucuations . ... Most models of structure formation in the universe predict anisotropies in the CMBR. ... Therefore one must take into account not only the theoretically expected value of the temperature fluctuation but also the so-called cosmic variance, i.e. the theoretical error due to observing only one universe....

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . ... Parkes radio telescope . Australia Telescope Compact Array . ... The current best 2 upper limit (Vogel et al. 1995) for the cosmic ionizing background is < 0.08 ( phot cm s ). is the ionizing flux density of the cosmic background at the Lyman limit in units of 10 erg cm s Hz sr ; ( / h ) is the equivalent photon flux at face of a uniform, optically thick slab. ...

... The dayside auroral precipitation consist of magnetosheath related boundary layer precipitation, and plasma sheet related BPS/CPS precipitation (extensions of the nightside precipitation regions). ... For example, the much lower fluxes from the LLBL region when compared to the cusp are compensated by the bidirectional electron beams found in the LLBL: the precipitating energy fluxes in the LLBL and the cusp are not that different. ... directly through the cusp and plasma mantle . ...

http ://hea-www.harvard.edu/ AstroStat /slog/ 2008 / eotw - background - subtraction / Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http ://wordpress.org/?v=3.4 http ://hea-www.harvard.edu/ AstroStat /slog/ 2008 / eotw - background - subtraction /comment-page-1/#comment-257 hlee Tue, 24 Jun 2008 20:52:10 +0000 ...

August 26, 2006, . ... The 2 nd Asian-Pacific Astronomy Olympiad to be held in Vladivostok and Ussurijsk (Far East of Russian Federation). Preliminary dates for the 2 nd Asian-Pacific Astronomy Olympiad are December 4-11 (a couple weeks later than the 11 th IAO in Bombay ). ... For the teams which ask for Russian visa - together with the personal data for visas (or before). E-mails for sending the applications . ... The Asian-Pacific Astronomy Olympiad 2006 - last information . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit–їs . ... Accueil Suivez en direct la fin du cargo spatial "Albert Einstein" . ... Le cargo spatial europ–їen ATV-4, baptis–ї "Albert Einstein", doit s'ab–?mer vers 13h05 au-dessus du Pacifique Sud ce 2 novembre. ... Suivez l'–їv–Rnement en direct . ... 14/03/2016 - Suivez en direct le lancement de la sonde Exomars . ... 20/01/2014 - Suivez en direct le r–їveil de Rosetta . ...

Mercury magazine is now digital only, with all of the same articles and features that appeared in the print version. The magazine will be formatted to download and include space for advertising. Our readers are directly involved in the mainstream of astronomy research and education. ... 86% are involved in astronomy education at some level . ... 1/4 page . ... Additional work includes resizing of ad material, reformatting or correcting electronic files and correction of advertiser errors. ...