Next: Sky Illumination Frame Up: Special Processing Options Previous: Special Processing Options . The flat field calibration frame may not have the same illumination pattern as the observations of the sky. In this case when the field field correction is applied to the sky data, instead of being flat there will be gradients in the background. ... The illumination correction is made by smoothing the reduced blank sky frame heavily. ... Table: Keywords for making the illumination frame . ...

IBIS Data Analysis . ... IBIS . ... Flat Fielding - Introduction . The images obtained by IBIS will have intensity variations across the field of view that are not due to the solar image, but rather caused by instrumental effects that alter the observed intensity in each point of the field of view. ... IBIS Flat Fielding Techniques . ... Therefore, it is desirable to obtain the flat field measurements center on a point along the equator near the heliographic center of the solar disk. ...

For circular orbits around Earth, we found . ... The distance of a satellite from the center of Earth in meters is an inconveniently big number, even before we raise it to the 3rd power. ... SQRT (25 638 838) = 5063.5 From this . ... T= 5063.5 seconds SQRT(r') 3 = 5063 sec r'SQRT=(r') . This is the practical form of Kepler's 3rd law for Earth satellites. ... International communication satellites are in the equatorial plane of the Earth and have orbits with a 24-hour period. ...

... For example, as pointed out by Perlman et al. (1996b), the lack of a Ca II H & K break strength criterion in the 1 Jy, S4 and S5 samples of BL Lacs, has caused numerous objects to be misclassified as radio galaxies instead of BL Lacs (see also March? Browne 1995, 1996). ... While one may argue that some of these objects fall in the expanded region of the (H & K break strength, equivalent width) diagram that March? et al. (1996) allot to the BL Lacs, several, for example 1 Jy 1308+326, do not. ...

... Recent Topics . ... MAO main . ... Invitation to submit to Remote Sensing Applications: Society and Environment . ... Call for Papers: New Journal Submit to Remote Sensing Applications: Society and Environment Find out more . We are very thankful for the many positive responses we've received after the introduction of Remote Sensing Applications: Society and Environment . ... MAO NASU . ...

... Electric Forces . 19.Motion in a Circle . ... In the absence of forces, motion in a straight line and constant velocity continues indefinitely. ... Each rotation the stone covers a distance . ... Since its velocity v equals the distance it moves in one second, one finds . ... while the actual motion brings it to some point D on the circle, whose center will be denoted by O. In the absence of forces, motion in a straight line and constant velocity continues indefinitely. ...

home events . ... Annual Meeting . ... Download scholarship application instructions in pdf format. ... Scholarship money will be distributed after the meeting as reimbursement for documented expenses incurred. ... Print this form and fill it out; be sure you give us a realistic estimate of your expenses, since this will determine the size of your scholarship.) ... 2009 Meeting Scholarships . ... Send reimbursement requests to the same address (above) to which you sent scholarship applications. ...

... Append the name of the output grid file. ... CYLINDRICAL PROJECTIONS: -Jc lon0 / lat0 / scale (Cassini) -Jj lon0 / scale (Miller) -Jm scale ( Mercator - Greenwich and Equator as origin) -Jm lon0 / lat0 / scale ( Mercator - Give meridian and standard parallel) -Joa lon0 / lat0 / azimuth / scale (Oblique Mercator - point and azimuth) -Job lon0 / lat0 / lon1 / lat1 / scale (Oblique Mercator - two points) -Joc lon0 / Je lon0 / lat0 / scale (Equidistant). ...

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... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

... World Data Center . for Solar-Terrestrial Physics . Moscow, Russia . ... Siberian Solar Radio Telescope, Institute of Solar-Terrestrial Physics, RAS SB, Irkutsk, Russia. ... Data of the Crimean Astrophysical Observatory on the ftp-server of the Solar-Terrestrial Physics Division, National Geophysical Data Center, Boulder, USA. ... World Data Centre for Solar-Terrestrial Physics, Chilton, UK. ... Solar-Terrestrial Physics Division, National Geophysical Data Center, NOAA, Boulder, USA. ...

Astronomy Discussion Forums . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Moon Phases - Interactive Application . ... Post Message | ... I've done an interactive application for understanding the phases of the Moon. ... Thanks. http://ilovemedia.es/en/resources/moon_phases.html . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

February 10, 2003 (Monday) Igor Tyukhov, Oregon Solar Radiation Monitoring Laboratory . February 17, 2003 (Monday) Osamu Yasuda, Tokyo Metropolitan University . February 20, 2003 (Thursday) Linear Collider Seminar . ... Fall 2002 . Fall 2001 . ... Fall 2000 . ... 3:00 pm, 472 Willamette Hall . ... The American Linear Collider Physics Group (ALCPG) has initiated a series of monthly seminars intended for a broad audience. ... This is the inaugural seminar. 1:00 pm, 472 Willamette Hall . ...

SINGULAR POINTS IN THE SOLAR CHROMOSPHERE . ... In the structure of the solar chromosphere, containing information on the configuration of the magnetic field, we have found and identified all the main types of the singular points ( see Fig. 1 ), which are known as inherent features of the 2-D vector field. ... The main types of the singular points are the node, the focus, the center, and the saddle. ... Singular point of the focus type in the solar chromosphere. ...

... Hubble Space Telescope Telemetry Access using the Vision 2000 Control Center System (CCS) M. Miebach European Space Agency, Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, Maryland USA 21218 M. Dolensky Space Telescope ­ European Coordinating Facility, Karl­Schwarzschild­Str. ... Part of CCS is a Space Telescope Engineering Data Store, the design of which is based on modern Data Warehouse technology. ... A WEB­based user interface allows easy access to the archives. ...

... Field size . Object name . ... Map size . ... Field size: the approximate size of the map in the Y direction. ... Galaxies: . ... Galaxies, which size exceeds some value depending on the field and map sizes, are displayed with their real positional angles and sizes by 25m isophote. ... In the "tools" fields there are links to the several famous AVO (Astrophysical Virtual Observatory) resources: NED and Simbad databases and DSS2 (Palomar Digitized Sky Survey) images of the corresponding sky area. ...

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... The operators will be explained as they are used. The general notion to keep in mind is that any combination of these operators results in a 2- D affine coordinate transformation in the TF plane, which may be represented using the homogeneous coordinates often used in computer graphicsfoley. ... S _t_c,f_c = g_t_c,f_c,(_t) | ... We denote a time shift to the position , with an operator that has a multiplicative law of composition : (Table 1). ... Note that these two operators do not commute. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The white dashed line shows the region studied in this paper, with a radius of 1.5 centered on the massive star system HD 206267 (O6.5V), which is the main ionizing source of the region. ... We demonstrate how the survey can be used to (1) reliably select classical T Tauri star candidates and (2) constrain the mass accretion rates with an estimated relative uncertainty of 0.6 dex. ...

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