The shape and width of observed PSFs varies slightly over time, due to the change in focus of the telescope. The focus variation consists of two terms: a secular change due to the ongoing shrinkage of the Metering Truss Assembly at an estimated rate of 0.25 ? ... See Figure 5.8 ). ... Systematic errors due to the secular focus drift can be corrected using aperture corrections as a function of focus change (see Figure 5.9 ). The aperture correction adjusted for focus change is hence: . ...

... The az/za plots show the errors in mm normal to the reflector surface. The measured points on the reflector surface go all the way to the edge of the dish so the zenith angle goes from 0 to 34 deg. ... The figures are: . ... Figure 3: Shows the reflector errors after the first adjustment. ... 120 degrees is too far by 2 times . ... You can see the large errors in the center (green, blue) that point at -60 degrees. ... The large errors at -120 degrees were turned the wrong direction. ...

Figure 4a. The defocus in arcseconds of blur on the image plane is shown as a function of time for the night of August 14. Arrows mark the times at which the telescope focus was manually changed. The labels show the magnitude of the changes made. The squares show measurements of the defocus just prior to and after manual focus changes. ... Below I will show clear indications of errors in the secondary motions which are probably contributing significantly to focus errrors in the telescope. ...

... With the ATCA beam at 3mm being comparatively small ( ), it is possible for tracking errors to be significant. ... In additional poor tuning of the antenna drive systems can sometimes cause poor tracking, particiularly soon after a change in source. ... Tracking errors are caused by flaws in the drive servo system, whereas pointing errors are a sum of tracking errors and errors in the antenna pointing model. ... The task uvflag can be used to flag based upon rms tracking error. ...

Next: Determine a background subtracted Up: Calibration Previous: Radial profile of an . It is possible to propagate statistical errors through an analysis procedure via the use of an error array. Error arrays can be used in such tasks as imcnts , imcontour and imsmooth . An error array contains the squares of the errors (it is the data file itself for Gaussian statistics). ... xs> errcreate ``xdata$snr.qp[bl=2]'' . ... Each array element will contain the square of the error. ...

... Tiny Tim has been used for generating Hubble Space Telescope ( HST ) point-spread functions (PSFs) for deconvolution, algorithm testing, proposal planning, and optical studies. ... Tiny Tim is a stand-alone program for simulating HST PSFs as viewed with the on-board imaging cameras (WF/PC-1, WFPC2, FOC, COSTAR/FOC). ... The measured aberrations for FOC f/96, WF/PC-1 PC6, WFPC2, and COSTAR/FOC are used by Tiny Tim . ... Figure: FOC f/96 observed and Tiny Tim model PSFs (pre-COSTAR) at 253 nm. ...

... B.1 New functionality . ... B.3 Semantic changes from CSS1 . ... CSS2 builds on CSS1 and all valid CSS1 style sheets are valid CSS2 style sheets. The changes between the CSS1 specification (see [CSS1] ) and this specification fall into three groups: new functionality, updated descriptions of CSS1 functionality, and changes to CSS1. ... Several internationalization features, including list numbering styles , support for bidirectional text , and support for language-sensitive quotation marks . ...

Tired light models invoke a gradual energy loss by photons as they travel through the cosmos to produce the redshift-distance law. ... The tired light model can not produce a blackbody spectrum for the Cosmic Microwave Background without some incredible coincidences. ... So the CMB must have come from a far away part of the Universe, and its photons will thus lose energy by the tired light effect. ... Assume that the CMB starts out as a T = (1+z)*T_o = 2.998 K blackbody, which is the blue curve. ...

AUTOMATIC STATION OF ECOLOGICAL CONTROL . ... BASIC PERFORMANCE SPECIFICATION . STATE OF ASEC DEVELOPMENT . AIR POLLUTION MONITORING . ... OF MEASURING CHANNELS . ... unit of measurement . ... Nitric oxide (NO) concentration, . ... power measured by ASEC . ... In particular, RSC Energia finalizes its work on measurement systems designed to measure dust, volumetric activity of radioactive gases and aerosols and other environmental parameters. ... Official WEB-site of S.P.Korolev RSC Energia . ...

The HyperNews Linux KHG Discussion Pages . Forum: Device Drivers . Keywords: memcpy verify_area . ... I am using memcpy in a device driver to copy data between to buffers in kernel space (one is a DMA buffer) and I keep getting segmentation faults I can't explain. I changed the driver since and now it copies the DMA buffer directly into user space with memcpy_tofs (and verify_area) and this seems to work just fine. ... Does this have to do with the memcpy faults under heavy system load? ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... indices rather than retrieve abundances: 1.2, 1.5, 2.0 µm · Work with calibrated radiances rather than relative spectra · Ad hoc atmospheric corrections Spectral index : S( ABCD) - S1 Index = S( ABCD) Correction on atmospheric absorption ·MOLA topography ·CO2: p,T ­ from European Mars Climate Database ·H2O column (Ls, ) - from TES observations ·H2O (, l, z) ­ from GFDL MGCM model ·HITRAN(2004) OMEGA DETECTOR C Wavelength,µm Errors and uncertainities ...

... Colours of stars and galaxies hold information on intrinsic and extrinsic parameters, such as stellar temperatures and galaxy populations, selective absorption and colour changes due different dust contents and inclination angles of galaxies, as well as galaxy redshifts and evolution. ... The colour magnitude diagram of 65000 galaxies to which all above-mentioned quantities and others contribute can only be explained by comparison with simulations. ... Colours are also of technical help. ...

OptInt PmWiki . ... Requirements . ... Page History | ... The above top-level requirements are being flowed down to a set of derived requirements by means of brainstorming sessions and appropriate analysis/simulations. A matrix developed by CAH, MF and ADR attempts to identify all derived requirements and can be used to check if we have captured them all: Derived Requirements Matrix . ... Derived Requirements Matrix . ... May 21, 2010, at 10:05 AM by MF - Uploaded a derived requirements matrix . ...

... comedi_loglevel -- change Comedilib logging properties . ... This function affects the output of debugging and error messages from Comedilib. By increasing the loglevel, additional debugging information will be printed. ... COMEDI_LOGLEVEL=0 Comedilib prints nothing. COMEDI_LOGLEVEL=1 (default) Comedilib prints error messages when there is a self-consistency error (i.e., an internal bug.) COMEDI_LOGLEVEL=2 Comedilib prints an error message when an invalid parameter is passed. ...

Hide Zen home . ... edit . Last edit . ... If you got error message . pre> . ... when installing jadetex ( jadetex-3.13), then you need to do: . ... in /usr/share/texmf/bin you need to . ... ln -s pdfetex pdfjadetex . ln -s pdfetex jadetex . ... Also I had to define env.variable export D2MDIR=/usr/bin . ... in /usr/share/texmf/bin you need to ln -s pdfetex pdfjadetex ln -s pdfetex jadetex . ... 0 Comments on 2006-11-15 This page is read-only View other revisions Administration . ...

... Documentation . ... I've added in a few more things to the documentation mainly in the area of error handling. ... Thanks to Steven Schoch <schoch@sheba.arc.nasa.gov> we now have a version of telnet and telnetd that can (as long as you enable it with a new server and client option) enable a user to telnet to the telnetd and not be asked for a password if they send a certificate that is signed by a trusted CA (which you naturally configure yourself) for those users in the new /etc/ssl.users file. ...

In order to assist folks upgrading we are now going to maintain a document describing information critical to existing Apache users. Note that it only lists differences between recent major releases, so for example, folks using Apache 1.1 or earlier will have to figure out what changed up to Apache 1.2 before this document can be considered relevant. Old users could look at the src/CHANGES file which tracks code changes. ... There have been numerous changes to the default config files. ...

The Face on Mars . ... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . Table 2: Dimensions of Mercator Projected Images of "The Face on Mars" . Map Projected Images . ... Processing the "Face on Mars" Images . ... This page will provide interested persons with both the raw Viking images, transformed to GIF format, and a brief tutorial (with examples) of image processing techniques applied to create "better looking" images. ...

... Astronomical Observatory, Shevchenko Park, Odessa, 65014, . ... The XVI -th G. Gamow's Odessa Astronomical Summer Соnference-School, 14-20 August, 2016, Odessa, Ukraine . ... The XV -th G. Gamow's Odessa Astronomical Summer Соnference-School, 16-23 August, 2015, Odessa, Ukraine . ... The XIV -th G. Gamow's Odessa Astronomical Summer Соnference-School, 17-23 August, 2014, Odessa, Ukraine . ... The XIII -th G. Gamow's Odessa Astronomical Summer Соnference-School, 19-25 August, 2013, Odessa, Ukraine . ...