Next: Combining Flat Fields Up: Preparing Your Calibration Previous: Combining Bias Frames . Similarly to the bias combination one can obtain an average dark current frame. However, one should consider whether the dark correction should really be applied: one needs a reasonable number of dark frames in order not to degrade the S/N, and obviously this takes telescope time. ... In that case, provided a good linearity of the CCD, one could do with the subtraction of an average dark frame. ...

... 13th European VLBI Network Symposium . and Users Meeting . on September 20-23, 2016. ... 13th European VLBI Network Symposium and Users Meeting on September 20-23, 2016. ... Year book "Ephemerides of Minor Planets for 2016" on-line . ...

The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

STScI . Staff Research . Summer Students . ... Research Staff Directory . ... Hubble Fellowships . ... Science Programs Having STScI Participation . ... Fellowships and Student Programs . ... Our experience shows that upper division undergraduates gain the most from the experience. ... None of these is in itself a requirement, and we welcome students without prior research experience. ... Complete the STScI Space Astronomy Summer Program Application Form . ... Application Information . ...

... input file: xdata$snr.qp . output file snr_vig.pl . xr> xspatial xs> makevig "xdata$rp110590.qp[bl=30]" arlac " " 1. # generates # output mask arlac_vig.pl at energy 1.0 keV Now apply vignetting correction to the image generating a vignetting corrected output image and error array: . ... xs> ximage # load package xi> vigdata # vignetting correction Input image file : xdata$110590.qp[bl=30] # From the original QPOE file Output vignetted image file : arlac # give *.imh extension! ...

... The next step after loading is to apply a number of ``fixes'' that are important for 3-mm data. ... By default atfix applies the ``standard'' gain/elevation model for the antennas. ... As mentioned above, the ATCA uses the chopper wheel method to measure an above atmosphere system temperature. ... On the night of an ATCA reconfiguration, a solution for the antenna positions is derived. ... Task atfix corrects the data for an improved antenna location solution via the dantpos parameter. ... ATFIX . ...

According to the # 7.1. of the Acting Statutes/Regulations on the International Astronomy Olympiad there should be an Authorized National Representative (Astronomical) Organization (ANRAO) in every participating state: A national astronomical society, a department (section) of the EAAS or IAU in the state, a leading observatory, an astronomical department of a leading university, a ministry of education or another appropriate competent institution. ...

reu-program@naic.edu . ... The Arecibo Observatory in Puerto Rico invites applications for its undergraduate summer research progrm. Students selected for the program will work with staff scientists on projects related to ongoing research or instrumentation development. ... Applications for the REU program should be made via the online form. ... After email verification, we will send you a link to upload your supporting documents. ... Online Application Open . ... Online Application Deadline . ...

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

... Practical information . The conference will take place at the Independent University, 11 Bolshoi Vlassievsky pereulok, 119002 Moscow. The nearest metro stations are: Smolenskaja (Смоленская, line 3 = dark blue, not to be confused with the other station of the same name on the line 4 = light blue) and Koropotkinskaja (Кропоткинская, line 1 = red), see this map (in russian, with detailed instructions) or another map (in english). ... Email: kaba (at) iitp.ru . ... University of Besan on . ...

... The Large Telescopes Program Committee of Russian AS . ... Executive Secretary, e-mail: request@sao.ru . Telescope RATAN-600 Time Request deadline: I half-year (Jan. ... Program title .. ... Principal investigator .. ... Request status .. ... Retarded applications and ones not conforming to form will not be accepted by the Committee. ... In some exceptional cases the Program Committee Secretary can accept a request after deadline with permission of the Chairman of Committee or director of SAO RAS. ...

... Up: Science Software Applications . ... It has extensions for creating GUI (Tk) and object-oriented ([incr tcl]) applications. Several Tcl-based tools that may be used for astronomical and other scientific applications have been created and are discussed. One example is ptcl , which registers PGPLOT functions as Tcl commands, creating a powerful interactive plotting package. ... Both programs use the same C code, Tcl commands, and [incr tcl] classes; only the GUIs are different. ...

... Science . ... Science Users Information > Science Publications > Science Announcements > Applications for ESO Studentships 2nd Annual Call . ... Observing Facilities . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... The ESO research studentship programme provides an outstanding opportunity for Ph.D. students to experience the exciting scientific environment at one of the world's leading observatories for a period of up to two years...

... Basic time functions . ... Example 2: Set a random number seed . ... Uses of time functions include: . ... time_t time(time_t *tloc) -- returns the time since 00:00:00 GMT, Jan. 1, 1970 , measured in seconds. ... timer.c */ #include <stdio.h> #include <sys/types.h> #include <time.h> main() { int i; time_t t1,t2; (void) time(&t1); for (i=1;i<=300;++i) printf(``%d %d %d n'',i, i*i, i*i*i); (void) time(&t2); printf(`` n Time to do 300 squares and cubes= %d seconds n'', (int) t2-t1); } . ...

... Recent Topics . ... MAO main . ... Call for applications to the PhD program of the API/GRAPPA, Amsterdam . ... Тема: Call for applications to the PhD program of the API/GRAPPA, Amsterdam . ... We are now advertising the Call for Applications to the PhD Program of the Anton Pannekoek Institute for Astronomy (API) and the Gravitation and Astroparticle Physics Amsterdam (GRAPPA) Centre, at the University of Amsterdam. ... Applications need to be submitted on or before December 11th, 2014. ...

The technical memorandum: Time and Time Interval Measurement with Application to Computer and Network Performance Evaluation (PostScript) describes a number of techniques for conducting experiments typical of computer network and transmission systems engineering. ... The usual data collected during a performance run of some experiment might include time offsets, time delays, frequency offsets and various error statistics. ...

The 2016 Project ASTRO introductory workshop will take place September 16-17, 2016. ... Participating teachers and astronomers are required to attend. ... Home Phone: . ... work email . ... Please briefly describe your background and your experiences in astronomy (if different). Describe experiences you have working with schools or explaining astronomy to students and/or the public. ... What grade level(s) do you prefer to work with (check all that apply) . ... either work or home . ...

... The NATO "Science for Peace" Program , Project number SfP 973559 . ... Receiver devices based on superconducting Josephson junction dynamics provide easy and extremely sensitive way for measurements of contents of these molecules. ... Fast development of SQUIDs resulted in fabrication of number of devices for supersensitive physical experiments and production of sophisticated multichannel measurement systems used in medicine for magnetocardiography and neural investigations. ...