XMM­Newton CCF Release Note XMM­CCF­REL­139 EPIC pn quantum efficiency R. D. Saxton 12 Dec 2002 1 CCF components Name of CCF VALDATE Blocks changed XSCS flag EPN QUANTUMEF 0012.CCF 2000­01­01 QE TOTAL, FRACTION ENERGY, NO QE CCDn, FRACTION CHANNEL, CHBINS FRACTION 2 Changes The total quantum efficiency (QE) for the Epic­pn detector has been revised following a re­analysis of the ground calibration data. ... These have been applied to the FRACTION ENERGY and FRAC­ TION CHANNEL extensions. ...

... Changing Programs & Resolving Problems . ... Several factors first came to mind that might explain what was seen. ... However, such changes cannot also explain the changes seen in the stellar spectra, and again this hypothesis was initially rejected. A drift of the spectrum on the diode array could lead to a decrease in observed flux over time. ... As mentioned previously, a significant change should also lead to a drop in the spectrum at one end relative to the other, and that is not seen. ...

OptInt PmWiki . ... Tech Meet 2 . ... Page History | ... PmWiki . ... Return to Tech Meet 2 ( Edit ) . ... 1 pixel independent of pixel scale (avoids aliasing of high frequencies in speckled image) . ... ADR & CAH: Optical image quality tolerancing of OAP-based layout . ... ADR & CAH: Layout and tolerancing of lens-based optical system . ... ADR & CAH: Use tolerancing results to assign image quality and stability budgets by component . ... ADR & CAH: Think about how to apportion image quality budget . ...

Displays the current status of Echelle spectrograph and allows you to change the configuration. ... Select TUI:Save Window Positions to remember the state of this checkbutton. ... The contextual menu on each control can return that control to the current setting of the instrument. ... Note that it saves the state of the controls, not the actual state of the instrument, so you can save any preset you like without commanding the instrument. ... Then change any controls you like and press Apply to apply. ...

. You can display the line by line difference between two files with the diff command. diff file1 file2 . The information given by the command tells you what changes need to be made for file1 and file2 to match. If there is no difference between the files you are returned to the shell prompt . diff indicates which lines need be added ( a ), deleted ( d ) or changed ( c ). Lines in file1 are identified with a ( < ) symbol: lines in file2 with a ( > ) symbol. Examples . Did You Know? .

... Second, the observatory can control the configuration, test data analysis procedures, and provide calibration solutions with the help of instrument models. This paper presents the VLT object-oriented framework for the development of ETCs (Exposure Time Calculators) and data simulators. ... Instrument simulations are being developed for the purpose of predictive calibration, instrument configuration control, and evaluation of data analysis procedures. ...

Next: Mass change Up: Evolutionary Scenarios of Binary Previous: Stellar Winds From Normal . As mentioned earlier, the duration of the binary evolutionary stage (say, I+I) is determined by the faster evolving component , where is the time each component spends at the corresponding evolutionary stage. ... Next, we should calculate the mass change for the slower evolving companion, the orbital semi-major axis and the eccentricity. Mass change . Semi-major axis change . ...

Sherpa Aneta Siemiginowska 1 SHERPA CIAO's Modeling and Fitting Application Aneta Siemiginowska CXC Astrostatistics Workshop, HEAD meeting , New Orleans, Septemter 2004 Sherpa Aneta Siemiginowska 2 Modeling and Fitting Software XSPEC - analysis of 1D X-ray data (imaging + grating) ISIS and Pint of Ale- primarily for analysis of highresolution (ie grating) X-ray data ... Jointmode data: spatialspectral, spatialtiming Use scripts based on Sherpa only commands. ...

... run the correlator with 25 Mhz bandwidth, at 3200,3400,3600, and 3800 Mhz, sampling at 1 second intervals. drive the telescope in az at .2 deg/sec (half slew) from az 270 to 630. ... For each az swing compute TsysPola- TsysPolB. For each az swing fit yfit(az)=c0 +c1*az + c2*cos(az)+c3*sin(az) + c4*cos(2az)+c5*sin(2az). ... The four boxes correspond to the frequencies 3200,3400,3600, and 3800 Mhz. ... Fig 2-5 show the 2az fit to the data for frequencies 3200,3400,3600, and 3800 Mhz. ...

... Class . ... PREV CLASS NEXT CLASS . FRAMES NO FRAMES All Classes . ... FIELD | ... METHOD . DETAIL: FIELD | ... public interface IJEventListener . ... Field Summary . static int . ... Field Detail static final int FOREGROUND_COLOR_CHANGED . ... Constant Field Values . static final int BACKGROUND_COLOR_CHANGED . ... static final int COLOR_PICKER_CLOSED . ... static final int LOG_WINDOW_CLOSED . ... static final int TOOL_CHANGED . ... Method Detail void eventOccurred (int eventID) . ...