Target Acquisition Reference Information . Figure 7.1 on page 88 shows mean predicted count rates as a function of (B - V) 0 color for the four acquisition mirrors. Also shown are the fits to the predicted count rates for different amounts of reddening. ... You can estimate target acquisition count rates using the plots instead of Table 7.1 on page 92 : . ... Read from the Figures (depending on the mirror used) the predicted count rate. ...

Next: Sky Subtraction Up: Construction of Flat Previous: Standard construction . For a number of projects where very deep integrations and accurate flat fields are required, and the targets are point sources or much smaller than the frame size, the sky background itself can be used to calculate the flat field. ... Use STATISTICS/IMAGE to calculate the image median, and COMPUTE/IMAGE to divide by this to get the normalised flat field. ...

Blackholes Forum Message . Forums: . ... Alternative Idea . ... With the proposal of exotic super dense entities like quark stars and others including black holes, matter on the atomic level can, and most likely does, break down to its most simplist building blocks (photons, leptons, quarks, etc). ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... This calibration approach is recommended when dealing with high frequency data from the old ATCA correlator, especially at 3mm wavelengths. ... The approach described here exploits the dual frequency bands that were available with the old correlator. ... Rather the current approach assumes that you have a single Miriad dataset containing bandpass calibrator, phase calibrator, flux density calibrator and program source. ... MFCAL . ... Input multi-source, dual-band dataset. select=source(1921-293) . ...

... Posts tagged ?MCMC? ... There were a few more with chi-square fitting and its error bars but excluded. Continue reading ?[ ArXiv] 4th week, Jan. ... Category: arXiv | Comment . ... This is not dissimilar to the problem of determining the significance of a ?feature? in an image (Connors, A. & van Dyk, D.A., 2007, SCMA IV). ... 2007? ... Category: arXiv , MC , MCMC , Methods | ... Category: Bad AstroStat , Data Processing , Fitting , Frequentist , Methods , Spectral , Stat , Uncertainty | ...

which serves as the electronic discussion forum for this class. ... All assignments will be posted there as well. ... Since the course material is always available, there is no longer a need for students to incessantly take notes in class. ... Grading techniques, however, will be designed so that people with weak math backgrounds or aptitudes will not be penalized. ... 2 Midterms which will total 40% of your grade . ... a few homework assignments which will total 20% of your grade . ...

... 2016. ... Wed, Dec 30, 2015 . An alternative to using the MCS for the computationally confident is to do the work on your own computer. All the software you need is free. ... If you want to do your project in python, I suggest downloading a prepackaged Scientific Python distribution, e.g. anaconda, Enthought or pyzo. Make sure you get the python 3 distribution (python 2 versions of these distributions also exist in some cases, but python 2 is the past, python 3 is the future!) ...

. This is the CIMA alternative drift map menu: . The following is the on-line help page for alternative drift map: . You can return to the main CIMA page by clicking here .

. Sergei and keyboard, photo by A.Yuferov .

... The parameter pgdev allows the user to specify a pgplot device, but, in contrast to the pgplot standard, the file name should not be included, but instead supplied via the parameter plotfile . ... To write a colour postscript file called op.ps: pgdev=/cps plotfile=op.ps . However note that at present, if a colour postscript device ( pgdev = `/cps'), a fits file ( pgdev = `/fits') or a ppm file ( pgdev = `/ppm') are selected, the task in fact bypasses pgplot and writes the postscript file directly. ...

... I normally begin by asking the class what they think would be different if the Moon didn't exist, or if the Sun were closer to Earth, or if a star exploded nearby. ... The winds would be much stronger. ... In using what-if questions in the classroom, it is worth bearing in mind that students extrapolating the effects of new scenarios will encounter two different situations: direct changes to the new version of Earth and indirect changes resulting from the direct changes. ...

Using XPA remotely ================== XPA starts by default using network communication with access control. ... Copy and append id_dsa.pub to $HOME/.ssh/authorized_keys on the system you are connecting to. ... If you are connecting from an observer's computer to a telescope computer that is not on a local area network, you may also need to change the firewall settings to enable SSH. ... The ssh command forward the port 5901 on your local computer to the same port on the telescope computer. ...