WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Chapter 2: WFC3 Instrument Description > 2.3 Spectral Elements . ... 2.3.1 The Filter Selection Process . ... Both WFC3 channels are equipped with a broad selection of spectral elements. ... The UVIS channel has a selectable optical filter assembly (SOFA) that contains a stack of 12 filter wheels housing a total of 48 elements: 42 full-frame filters, 5 quad filters, and 1 UV grism. ...

... arfgen (arfgen-1.73.3) [?? ... arfgen simply constructs the appropriate quantities from the CAL, in the form of vectors of discrete energy-dependent elements, and combines these data multiplicatively to form the ancilliary response. ... This is already taken into account by the CAL in the call to CAL_effectiveArea. The user can enable or disable the effective area, filter transmission, QE or grating attenuation by setting the relevant parameter (eg modeleffarea ) to true or false respectively. ...

... Обзор LPR фильтра. Впечатления от наблюдений с LPR фильтром. ... Характеристики цветных фильтров Baader-Planetarium . Мой перевод pdf- файла о фильтрах с сайта Baader-Planetarium (379 кб) . ...

... Figure: A dark current CCD exposure with cosmic ray events which are removed with non--linear filters. ... Figure shows a CCD dark current exposure with cosmic ray events. ... Figure: Removal of cosmic ray events on a CCD spectral exposure with different techniques: (A) original, (B) median filter, (C) recursive filter and (D) stack comparison. ... For comparison with non--linear filter techniques, Figure D shows removal of cosmic ray events from the spectral frame discussed above. ...

... Next: Star Finding and Up: Image Restoration and Previous: Multiresolution and Astronomical . ... Design improvements continue to be made in the filter developed using mathematical morphology principles for the Infrared Astronomical Satellite ( IRAS ) images. The purpose of this filter is to eliminate Galactic cirrus emission from extragalactic fields. ... With an appropriate normalization, the filter curve was applied to each pixel in the image to remove the Galactic cirrus. ...

M obile A stronomical Sy stem of TE lescope- R obots MASTER-II Kislovodsk Lomonosov Moscow State University, Sternberg Astronomical Institute , Moscow Union "Optic" , Kislovodsk Solar Station Latitude = 43 o љ44'.767љN; Longitude = 42 o љ31'.417љE; Altitude = 2067љm MASTERљIIљ(8љsquareљdegress) + MASTERљVWF(VeryљWideљFieldљCameras (FOV=800 square degrees, Timeљresolutionљupљtoљ150љms, with unfiltered m_lim=14m on 5 sec. exposure, and ~10.5m with 0.15 sec) . ... 11h 38m 38.0s , -09d 59m 59s) . ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Products . Telescopes . LX850 Series . ... Coronado€о Solar . ... H-Alpha Filters . ... Blocking Filters . ... Coronado 5mm Blocking Filter . ... Blocking filter for Coronado primary filters . ... Coronado BF-5 right angle (1.25" diagonal) type secondary blocking filter. The blocking filter is the second element in any Coronado H-alpha system, it is just as crucial to your safety and the system's performance as the front element. ...

j8s903011_crc.fits / TARGET INFORMATION / TARGET OFFSETS (POSTARGS) EXPTIME = 1.4400000E+03 / exposure duration (seconds)--calculated TEXPTIME= 1.4400000E+03 / FILTER1 = 'F555W ' / element selected from filter wheel 1 FILTER2 = 'CLEAR2L ' / element selected from filter wheel 2 DATE-OBS= '2003-11-13' / UT date of start of observation (yyyy-mm-dd)

... Archives . ... I decide to discuss Kalman Filter a while ago for the slog after finding out that this popular methodology is rather underrepresented in astronomy. ... When I learned ?Kalman filter? for the first time, I was not sure how to distinguish it from ?Yule-Walker equation? (time series), ?Pade approximant, (unfortunately, the wiki page does not have its matrix form). ... Tags: Cressie , inference , Kalman filter , kriging , MADS , spatial statistics . ... Comment ( RSS ) | ... Chandra Blog ...

Peremennye Zvezdy", . ... Find.Chart . ... GSC 04516-02121 . ... The new variable star 2MASS J00511854+5022580 (indicated as V in the finding chart) is inside the field of view of the known variable star V364 Cas. ... The new variable star GSC 04516-02121 (indicated as V in the finding chart) is inside the field of view of the known variable star V405 Cep. ... The variable star 2MASS GSC 00770-00523 (indicated as V2 in the finding chart) is inside the field of view of the known variable star AV CMi. ...

... BOM2 and the basic block of solar limbograph including pointing and control systems ? ... Fine tracking platform (FTP) for Sun tracking by the sight axis of the limbograph; . ... Tracking system frequency ? ... Controller of the control system and solar fine tracking of the sight axis of the limbograph; . ... The basic relative construction of the elements and instrumental blocks of the "Astrometria" space experiment is shown on the block diagram of units within the complex of SL-200 solar...

All stars derive their energy through the thermonuclear fusion of light elements in to heavy elements. High temperatures are required so that the mutual electrostatic repulsion of the protons in each fusing atomic nucleus is overcome. ... Elements with more protons in their nuclei require higher temperatures. ... This sequence is now shown in the animation below. ... First Step of the Proton-Proton Chain Narration . Second Step of the Proton-Proton Chain Narration . ...

Modules | ... Apache HTTP Server Version 2.4 . ... Several changes in 2.0 and above affect the internal request processing mechanics. ... There were a number of different code paths in the Apache HTTP Server 1.3 to attempt to optimize subrequest or redirect behavior. ... The Request Processing Cycle . The Request Parsing Phase . ... If a module doesn't pass generated requests through this code, the author is cautioned that the module may be broken by future changes to request processing. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Facilities . ATNF facilities . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

... The Utilization of Spatial Enhancement of Landsat Images in the Delineation of Structural Elements, Red Sea Hills, NE - Sudan . ... In contrast to spectral image enhancements, spatial filters emphasize or de-emphasize image data of various spatial frequencies. ... Wherein, most of the structural elements in the area are clear and esily descernible. Subtle enhancements on the structural lineaments in the area enabled the author to produce a structural map of the area under investigation. ...

... POLARIMETRY BAND PASS FILTER SQUARER Vout = Vin ^2 Vin Vout RC LOWPASS FILTER (AVERAGER) POLARIZATION A CHART RECORDER A-TO-D CONVERTER Vin Vout POLARIZATION B DIGITIZATION COULD START HERE COMPUTER FRONT END + BACK END 1 FILTER BANK SPECTROMETER POL B CHANNELS SQUARER Vout = Vin ^2 NARROW BAND PASS FILTER BAND PASS FILTER ...

... Format of the orbital elements | Estimation of the extrapolation errors | Version 1" of the orbital elements collection, determined by KIAM during flight and used for operations planning . Version 2" of the of the orbital elements collection, modified by IKI during flight and recommended for the orbital calculations during scientific data processing . ... Three kinds of the INTERBALL Auroral probe (IB_AUR) orbital elements' collections are presented here. ... IKI RAN | SSC IKI RAN | ...

Your First Telescope . Articles | ... Eyepieces . ... You don't really NEED more than 3 or 4 carefully chosen eyepieces, a barlow, and perhaps a filter or two, but most of us eventually wind up with collections, some of them quite impressive. Eyepieces: The first accessory a newcomer buys is usually a new eyepiece. ... The Kellner is a three element design that shows an acceptable 40-45 degree FOV, and good correction of spherical and chromatic aberration. ... www.astronomy.net . ...

... Content Model: %Body.Content . ... Note that the ID, LANG and CLASS attributes can be used with virtually all of the elements permitted in the document body. ... CLASS . ... The CLASS attribute is most commonly used to attach a different style to some element, but it is recommended that where practical class names should be picked on the basis of the element's semantics, as this will permit other uses, such as restricting search through documents by matching on element class names. ...

RTT150 . ... One of the image, obtained in the May, 2003, with Andor DW436 CCD. Cluster 1541+6626, filter R, exposure 15 minutes, the resolution is 1", limiting star magnitude is 23m, the field of view is 8' x 8'. At the left: image of cluster 0720+7132 (z=0.268) obtained in the beginning of November, 2002 with RTT-150 and AP-47P CCD. 25 minutes exposure in R. The resolution is 0.7" (angular size of the image element - 0.23"), limiting stellar magnitude is 23.5-24. ...