The computed band passes. ... The interim correlator input is filtered by 8 analog filters (50 Mhz wide at the 260 Mhz IF... one for each sub correlator). ... For bandwidths of 25 Mhz and below the real data stream is digitally down converted to complex samples I, Q streams. ... The Top figure is the halfband filter bandpass computed from the filter coefficients. ... The computed filter has aliased power, extra IQ filtering, and two applications of the filter on the resulting real bandpass. ...

Еще в разделе: (Показать все результаты (>6309) - www.naic.edu/ )

• http://www.naic.edu/~phil/mbeam/satur/fbAmps_apr05.html
• Arecibo Observatory L-Wide Band Receiver
• hardware_pdev

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

Еще в разделе: (Показать все результаты (>34397) - www.atnf.csiro.au/ )

• Photometric Filters Activity
• The UKST H survey and the need for a new filter
• PmWiki | Observing / RFI

The Linear Ramp Filters (LRFs) provide a narrow band ( ) imaging capability which is continuously tunable from 3710е to 9762е. These are essentially a collection of narrow band interference filters whose central wavelength varies with position on the filter glass. ... If it is necessary to know which CCD will be used, observers can consult Table 3.7 or Table 3.8 , or use the on-line LRF calculator tool on the WFPC2 WWW pages. ... See Linear Ramp Filters for further details on LRFs.) ...

Еще в разделе: (Показать все результаты (>19733) - www.stsci.edu/ )

• Polarizer Quad Filter
• COS Imaging Observing Strategies
• Absolute Photometry

... 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...

Еще в разделе: (Показать все результаты (>2415) - www.sai.msu.su/ )

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

Еще в разделе: (Показать все результаты (>1232) - jet.sao.ru/ )

• On the problem of high spectral resolution observations of faint objects

... R.A. = 00h55m04s.86, Decl. = -37 41'43".7 . ... Variable star in NGC 1511 . ... Variable star near Pegasus 2001bn IAUC 8624 BV anon 2001bh 7622 K star ugc11635 2001dh 7482 M star ic5374 1999db 7227 QSO anon 1999dc 7227 AGN anon 1999cx 7210 AGN anon 1999cu 7210 AGN anon 1999bs 7141 cat var ugc11093 1998di 6982 dwarf nova anon 1993U 5818 QSO anon 1993V 5818 QSO anon 1992W 5517 M star mcg 8-23-96 1992X 5517 M star mcg 6-32-24 1991ap 5327 QSO anon 1989Z 5162 var ngc4013 1985J 4059 CV ugc6274 ? ...

Еще в разделе: (Показать все результаты (>855) - www.rochesterastronomy.org/ )

... 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. ...

Еще в разделе: (Показать все результаты (>2667) - www.sao.ru/ )

• Columns REDLEAK, RLTYPE, and MAKER
• Missing bands
• Getting the observations

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... 2/3-m Telescope . ... Site . ... Commanding . ... In a typical robotic observing scenario, each afternoon, a telescope control computer obtains a set of objects to observe from its home institution from a command or script file. ... The file is then transferred to the telescope control computer at the Winer Observatory in Sonoita. ... The Iowa control computer then begins processing the telrun.sls file. ... 2013 Winer Observatory. ...

Еще в разделе: (Показать все результаты (>77) - www.winer.org/ )

• Winer Observatory Operations

... Tonight's Sky . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... solar system . galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Imaging Basics . ... Observing Basics . ... Observing Basics: Visual Solar Filters . ... Expand your observing at Astronomy.com . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Еще в разделе: (Показать все результаты (>6056) - www.astronomy.com/ )

• Maximize a minimum filter | Astronomy.com
• filter | Astronomy.com
• Problems posed by massive stars | Astronomy.com

... Up: Proposal Processing . ... An automated observing proposal processing system has been in use at KPNO during the past three years. ... Observer and proposal information fields in these files are well-marked with LaTeX tags, thus allowing automated extraction and importation to observatory databases. ... The Kitt Peak observing proposal handling system (Bell et al. 1996) is an automated system for distributing, receiving, and processing LaTeX observing forms and associated PostScript figures. ...

Еще в разделе: (Показать все результаты (>1831) - www.adass.org/ )

• WinTICS-24 Version 2.0 and PFITS-An Integrated Telescope/CCD Control Interface
• Improvements in Filter Design for Removing Galactic ``Cirrus'' from IRAS Images
• Titan Image Processing

XMM-Newton OM Response Files Page . ... Data Analysis SAS News What is SAS? ... The response files have the name om_effarea_<filter>_v2.0.rsp. The response files should be used in conjunction with a spectral data file containing the filter count rate. Such a data file may be created by editing the template filter file om_filter_default.pi with a fits editor such as 'fv' and changing the "RATE" and "STAT_ERR" entries in the SPECTRUM extension to the filter count rate and error. ...

Еще в разделе: (Показать все результаты (>8215) - xmm.vilspa.esa.es/ )

• XMM-Newton Current Calibration File: Updates
• XMM Science Objectives
• Comments on Individual Table Columns

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... The Meade StarNavigatorтДв series was designed with ease of use and convenience in mind. ... Coronado€о Solar . ... H-Alpha Filters . ... Blocking Filters . Coronado Accessories . ... Dealer Locator . ...

Еще в разделе: (Показать все результаты (>2495) - www.meade.com/ )

• Coronado 5mm Blocking Filter - Blocking Filters - Coronado€о Solar - Products
• Coronado 10mm Blocking Filter - Blocking Filters - Coronado€о Solar - Products
• Coronado 30mm Blocking Filter - Straight through - Blocking Filters -

... NICS will be the only infrared instrument for the first light of the TNG; as a consequence, we decided to incorporate a sufficient degree of operation flexibility by providing the instrument with six different observing modes, three aimed at imaging and three at spectroscopy: . ... It will be possible to use the narrow band filters as order sorters; this will allow to perform high resolution long-slit spectroscopy in the wavelength ranges covered by the available narrow band filters. ...

Еще в разделе: (Показать все результаты (>10344) - www.arcetri.astro.it/ )

• Digital backends
• FIRPO Help 5
• Unable to access KHG, port 8080 giving problem.

... ARC 3.5m | GFP . ... Install Appropriate Filters and Edit filters.txt file . Edit filters.txt file on aiscam@finesse in /home/aiscam/config . ... It also loads the filter info and the gfp.cfg settings including the calibration file for the appropriate course z-setting . aiscam: etalon in ;load etalon into optical path . ... aiscam: fpzero -w 4044.4 -1591.47 ;set fpzero with wavelength and central z . ... aiscam: time 40 . ... aiscam: file bias ;set filename for biases, no time needed . ...

Еще в разделе: (Показать все результаты (>944) - www.apo.nmsu.edu/ )

• Astrophysical Research Consortium - Apache Point Observatory
• APO Home Page
• Manastash Ridge Observatory Home Page

... Dr. Ravil Nazirov is the head of the workshop, and Andrew Ananjev is the secretary of the workshop. ... The workshop is used to be held in the last decade of the month, preferably on Tuesdays. ... The next session will take place October 29, 1996 . ... There is "CONPAS" mailing list which you can join to discuss issues of problem solving and to be automatically notified of important dates and decisions with respect to the coming sessions. ... Secretary of the Workshop: Andrew Ananjev . ...

Еще в разделе: (Показать все результаты (>788) - www.iki.rssi.ru/ )

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

Еще в разделе: (Показать все результаты (>847) - www.astrosociety.org/ )

• ASP: Using Multicultural Dimensions to Teach Astronomy
• ASP: Up, Up, and Away
• ASP: Good Astronomy Activities on the WWW

... Despite the use of counterweights, I have had ongoing problems with preventing unwanted motion in altitude, particularly during star parties when everyone seems to want to lean on the telescope while observing. ... After some difficulties at a windy star party a few years ago at the Boston Museum of Science, I designed a simple and very effective altitude brake and slow motion control which can be assembled very quickly and at minimal cost. ... The other end of the arm attaches to a turnbuckle*. ...

Еще в разделе: (Показать все результаты (>465) - www.atmob.org/ )

• Mars pictures from Stellafane by Paul Valleli

Brad Carter, Carolyn Brown, Rhodes Hart Drew Foster, John Kielkopf, Ron Moore University of Southern Queensland, Australia University of Louisville, Kentucky, USA OVERVIEW Mt Kent Observatory is now providing live remote observations of southern skies as part of a collaborative project between USQ, the University of Louisville, and Northern Kentucky University. ... This enables observers to make daytime use of a remote telescope during its local night-time, and image otherwise inaccessible skies. ...

Еще в разделе: (Показать все результаты (>695) - www.astro.louisville.edu/ )

• http://www.astro.louisville.edu/information/asa2006.pdf

... 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 ...

Еще в разделе: (Показать все результаты (>4263) - hea-www.harvard.edu/ )

• The AstroStat Slog 2007 August
• The AstroStat Slog Blog Archive Change Point Problem
• The AstroStat Slog 2009 June

... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > The pipeline cannot find recipe files, what is the problem? ... Science Users Information . Observing Facilities . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Data Pipelines and Calibrations . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... ESO Science Newsletter . ... To check which recipes gasgano is looking at go to File ! ...

Еще в разделе: (Показать все результаты (>20939) - www.eso.org/ )

• ESO - Are there any known problems with FORS2 data?
• ESO - Are there any known problems with NACO data?
• ESO - Are there any known problems with XSHOOTER data?