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... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

These observations are aimed at fully charactering FORS1 photometric system (UBVRI zero-points, color-terms and extinction coefficients) for the Tektronix 2048x2048 pixel CCD (24µm px) . To this aim, the two Landolt/Stetson photometric fields SA95 and SA101 will be observed on a number of epochs and at different airmasses during February and March 2007. ... SA101 . ... OBs for SA101 have to be observed during evenigh twilight (exceptions are expected for the second half of March) . ...

Next: Summary of Imaging Strategies Up: Primary Beams and Mosaicing Previous: Mosaicing Observing Strategies . ... Splitting: As with conventional reduction, for calibration and imaging purposes, it is easiest in Miriad to split the data into datasets containing a `single source' and single frequency band. ... vis=mosaic.uv . ... Data Selection: With mosaic visibility datasets, the select=ra and select=dec selection sub-commands can be useful to extract or manipulate a subset of the visibility data. ...

Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...

... The new emission line galaxies are listed in Table 2 containing the following information: . column 1: The object's IAU-type name with the prefix HS. ... This was not corrected in the figure shown in Appendix A. HS1214+3801 : This is seemingly a supergiant H II -region at the very rim of the nearby edge-on disc galaxy (SA(s)cd) NGC 4244 (V hel = 224 kms -1 and B T =10.88). ... To check this option one needs a detailed map of the NGC 4244 velocity field including HS 1214+3801. ...

CIMA is more than just the observing tool - in fact, the observing tool is just a part of a bigger package called the CIMA software package. ... There is also a another package called the CIMA WAPP software which contains the WAPP software, the special Tcl/Tk interpreter used by CIMA and support libraries. ... All CIMA software components recognize the following general options that are part of the CIMA version selection system: . ... The select_cima script can be used to set up a default version. ...

... 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. ...

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. ...

Instrument Science Report FGS 2005-01 The FGS Astrometry in the Feb 2005 On-orbit Two Gyro Mode Test E. Nelan August 17, 2005 A BSTRACT FGS1r Astrometry was tested under the Two-Gyro Mode (TGM) pointing control law during the February 2005 on-orbit test. ... In each of these orbits the visit contained a single (long) exposure that observed the visit's particular target star for the remainder of the visibility period. ... Visit 02: Visit 02 employed a bright (V=9.9) dominant guide star. ...

RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

... The following charts/text are intended as tools for monitoring the Type Ia supernovae ( SNe ) event visually or photographically (utilizing telescope equipped CCD equipment).The files include: A replication of The Type Ia SNe , V- magnitude (with data point checks from other cited references)and color index (B-V) templete (to indicate a general color-related trend of the type Ia ... I believe this might help alleviate some of the problems involving the making of acceptable amateur light curves...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

The Arcetri Catalog contains measures and bibliographic data for all known H2O maser sources north of declination = -30 degrees (to be observable with the Medicina radiotelescope). ... This database is fully described in Cesaroni et al. ... A statistical analysis on the atlas has been carried (Palagi et al 1993). R. Cesaroni, F. Palagi, M. Felli, M. Catarzi, G. Comoretto, S. Di Franco, C. Giovanardi, F. Palla: A Catalogue of H2O maser sources north of delta=-30 , Astronomy and Astrophysics Suppl., ...

... The ChaMPlane survey is being conducted at the Harvard-Smithsonian Center for Astrophysics. The ChaMPlane team is conducting a "Bulge Latitude Survey" (BLS) to measure the latitude distribution of faint X-ray point sources in the region b = +/- 1.5њ, l = +/- 0.35њ centered at l = 0њ. ... In Chandra cycle 7, two-thirds of the region below the galactic plane were observed (BLS-Sa); observations of a similar-sized region above the plane (BLS-Na) are planned for cycle 8 (summer 2007). ...

As an obligatory preparing for the application to participate in the IAO a short report of National Olympiad of the current year with a set of all problems used on the Olympiad has to be presented by the applicating team. ... The final minutes (protocols written in Latin or Cyrillic in form of tables) of the Olympiad (evaluating of solutions of the students participated in the last stage of the Olympiad) should be included as well. ... Historical data of the National Astronomy Olympiad: . ...

... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...

... Crystalline graphite has a strong resonant feature near 11.52 (Draine, [ 1984 ]) which is not observed... width 2 . Note that the observed weakness of the bump strength in dense clouds can be attributed to the hydrogenation of carbon (Sorrell, [ 1990 ]).. ... Its idea was first suggested by Gold ([ 1952 ])...fpell) 4 . A similar conclusion follows from calculations made by Matsumura and Seki ([ 1996 ])... ``correct'' 5 . ...

... Faraday's Lines of Force (field lines) . Faraday's Disk Dynamo . ... The Earth's Dynamo . ... Magnetic Storms and Ring Currents . The Magnetosphere . ... Chronology of Geomagnetism . ... 1581 Robert Norman publishes "The Newe Attractive," . ... 1832 Faraday tries to detect a dynamo current in water flowing in the Earth's field. ... magnetic storm. ... 1903 Birkeland proposes the existence of "polar magnetic storms," He also . ... 1919 Joseph Larmor proposes that magnetic fields of sunspots . ...

... A detailed study of two consecutive bright points observed simultaneously with CDS, EIT and MDI is presented. The analysis of the evolution of the photospheric magnetic features and their coronal counterpart shows that there is a linear dependence between the EIT Fe XII 195? flux and the total magnetic flux of the photospheric bipolarity. ... In a follow-up study, we used wide slit (90arcsec240arcsec) movies of four EIT coronal bright points (BPs) obtained with CDS. ...