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1. Mosaicing Observing Strategies
Next: Visibility Processing Up: Primary Beams and Mosaicing Previous: Mosaicing . ... Pointing grid pattern: In a mosaic experiment, you observe a number of pointings - possibly a few to several hundred, depending on the size of the source of interest. ... For a well-illuminated dish, this spacing corresponds roughly to half-power point spacing between field centres. ... Field Naming Convention: When preparing the observe files for an ATCA mosaic experiment, you will create a `mosaic file'. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/computing/software/miriad/userguide/node179.html -- 10.1 Кб -- 10.04.2016
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2. APO Home Page
... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/ -- 13.9 Кб -- 11.02.2016
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3. How to extract MOS spectra of a point-like source and associated matrices
... 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. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.0.0/documentation/threads/MOS_spectrum_thread.html -- 11.6 Кб -- 15.06.2007
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4. Observation Process
Next: Prior Models Up: Prior Models and the Previous: Bayesian Paradigm . The observed image differs from the true brightness distribution in having been blurred and encountering statistical noise in the recording process. ... Let us describe the noise models. ... This model can be approximated, at least for high brightness values, by the Gaussian distribution . ... The noise model we will use in this paper is Poissonian; see Molina and Ripley (1989) for the use of robust Gaussian noise models. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/stsci/meetings/irw/proceedings/molinar.dir/section3_3.html -- 6.5 Кб -- 18.04.1994
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5. http://www.naic.edu/~tghosh/a2186/aug10_08/aug10_08/How2run
... Just hit <return> if the defaults are okay ! It is assumed that each set will have a distinct Source name. ... Default will be: A1863/ A2174 / found 8 files in this set assumed source _ name x108aug31_01_01_151641+304435 Enter a new source name ; if you wish Or just hit return to use the default found 1 files in this set assumed source _ name x108aug31_02_17_160509+304412 Enter a new source name ; if you wish Or just hit return to use the ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~tghosh/a2186/aug10_08/aug10_08/How2run -- 5.9 Кб -- 10.08.2008
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6. FORS1 Photometric System Characterization
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) . ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/~fpatat/fors/testphot2/ -- 10.8 Кб -- 12.03.2007
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7. Siding Spring Survey Follow-up Obs
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 . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~rmn/follow-u.htm -- 13.0 Кб -- 16.02.2005
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8. Calibration Frames and Naming Convention
... A data set contains a science frame and all its associated calibration frames. In order to archive a maximum of efficiency the CCD package uses a simple and straightforward naming convention: the names of the data sets are identical to the names of the science frames. ... By combining the calibration frames of a particular exposure type ( e.g. bias) the user can create a master calibration frame. ... Below follows a listing of calibration frames that currently can be handling in the CCD package. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node36.html -- 8.1 Кб -- 23.02.1996
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9. VISTA ETC - Exposure Time Calculator
... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...
[ Сохраненная копия ]  Ссылки http://www.vista.ac.uk/observing/etc/index.html -- 15.1 Кб -- 28.03.2013
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10. Light Curve Templete/Observing Form For Visual SNe Observers.
... 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...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/mirrors/isn/snecurv.htm -- 8.3 Кб -- 02.02.2012
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11. rtftohtml Users Guide - 4 Special Processing
... 4.4 Imbedding HTML in a Document . In the following discussion of SPECIAL processing  , I will assume that rtftohtml has not been customized. If it has, the text styles used to create special effects may be different. ... Normally, if your RTF document contained the text "<cite>hello</cite>", the translator would output this as: "&lt;cite&gt;hello&lt;/cite&gt;". ... If, however, you want the <cite></cite> to be interpreted as HTML markup, you must format the tags using Hidden and Shadow. ...
[ Сохраненная копия ]  Ссылки http://comet.sai.msu.ru/docs/rtftohtml/rtftohtml-4.html -- 4.8 Кб -- 23.08.1996
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12. Observe Every Photon's Size Experiment - an Astronomy Net Education Forum
Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Observe Every Photon's Size Experiment . ... Post Message | ... Observe every photon's size experiment . 1.The slow process of the formation of the light diffraction pattern experiment . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/forums/education/messages/119.shtml -- 15.7 Кб -- 09.04.2016
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13. Stellarium: Nebula Class Reference
... Classes . ... Nebula Class Reference . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getCloseViewFov (const StelCore *core=NULL) const . ... getVMagnitude (const StelCore *core, bool withExtinction=false) const . ... getSelectPriority (const StelCore *core) const . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ... getPositionInfoString (const StelCore *core, const InfoStringGroup &flags) const . ...
[ Сохраненная копия ]  Ссылки http://astro.uni-altai.ru/~aw/stellarium/api/classNebula.html -- 41.7 Кб -- 28.02.2014
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14. Historical Cosmologies
... This distance is equivalent to 3.26 light years. ... The Universe was now a large place and the intrinsic energy output of the stars had to be huge in order that their light could reach us. ... Newton implicitly assumes space is flat . ... An Orbit in Curved Space This is a prediction made by General Relativity and confirmed by direct observation of Mercury. The Ant Universe in Flat Space . ... Hubble noticed a correlation between recessional velocity and distance. ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/1999/ph123/lec03.html -- 10.8 Кб -- 07.10.1999
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15. Lagrangian Points
... 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. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/EAMAGSPH/wlagran.html -- 7.8 Кб -- 21.12.2007
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16. NICMOS Calibration Pipeline: Processing Associations of Exposures
... The processing of these associated images presents new challenges to the HST data processing pipelines, which heretofore operated only on single images. ... Stage 1 (CALNICA) calibrates individual exposures without information from other members of the association. ... Stage 2 of calibration (CALNICB) only operates on associated images that have previously gone through CALNICA processing, and creates combined images for each distinct (non-overlapping) pointing within the association. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass96/bushouseh.html -- 13.2 Кб -- 23.06.1998
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17. Description of the RadioAstron project, english version
... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...
[ Сохраненная копия ]  Ссылки http://www.asc.rssi.ru/RadioAstron/description/observations_eng.htm -- 9.5 Кб -- 10.05.2008
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18. Number of accreting X-ray binaries of selected types
... 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. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~polar/html/publications/apj/node8.html -- 5.9 Кб -- 21.06.1996
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19. Actor Prolog User Guide. Residents.
In Actor Prolog a resident is a special mechanism that helps processes to inspect state of other processes. A resident observes the state of a specified (target) process and if the state of the process changes (for instance, after message handling) it proves a specified predicate of the process. ... Work of the resident. ... Any change of the list of target processes or arguments of resident function results in activation of the resident and repeated collection of information in the target worlds. ...
[ Сохраненная копия ]  Ссылки http://www.cplire.ru/Lab144/start/e_reside.html -- 14.6 Кб -- 24.09.2007
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20. FHT (ImageJ API)
... java.lang.Object ij.process.ImageProcessor ij.process.FloatProcessor ij.process.FHT . public class FHT . ... Returns the image resulting from the point by point Hartley conjugate multiplication of this image and the specified image. void . ... Returns true of this FHT contains a square image with a width that is a power of two. public void transform () . ... Converts this FHT to a complex Fourier transform and returns it as a two slice stack. public void swapQuadrants ( ImageProcessor ip) . ...
[ Сохраненная копия ]  Ссылки http://www.astro.louisville.edu/software/astroimagej/imagej/api/ij/process/FHT.html -- 44.5 Кб -- 02.12.2010
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