... Go to new wiki . ... LBAFeb2009 / . VX014B is the second polarisation test. ... IFP#1-LO 6642 - 6658 MHz USB RCP . ... Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/vx014/vx014b . ... Mopra Tsys ( plot ) . ... VT11 : I tested whether any noticeable difference could be found between continuous CLCAL and CLCAL on a 1 minute average looking at a (single) strong source. ... Early solutions are bad, and the correction is not helpful. One can see the timescale of the corrections in this plot as well. ...

... User Portal . ... Science Users Information > Science Publications > Science Announcements > ALMA Cycle 3 User Survey Results . ... Science Users Information . ... The fourth ALMA user survey was conducted between the 1 May and 1 June 2015. A total of 536 users (representing 15% of the users who were sent the questionnaire and 44% of the Cycle 3 PIs) responded to the survey. ... The ALMA Observatory sincerely thanks all users who took the time to answer this survey and provide valuable comments. ...

A hardware problem in the HST power system has caused overcharging of 2 of the 6 on-board batteries, which, if nothing was done, could result in battery overheating and possible failure. ... This report describes the actions taken by the NASA Goddard HST Project to address this need and their effect on the scheduling of HST observing programs . ... An engineering analysis tentatively identified the fault as a loose screw connecting two copper bus bars. ... V1/Sun angle . ...

Arecibo Galaxy Environment Survey (AGES) Last Update: . ... 22/12/2006 . ... wapp.20061222.a2048.0001 Scan: AGES3193_p1_101, Got the telescope early, quickly added an extra scan. ... wapp.20061222.a2048.0009 Scan: TOGS calibration, . ... RM, WvD . ... wapp.20061223.a2048.0009 Scan: TOGS calibration, . TOGS had problems at the start. ... wapp.20061226.a2048.0002 Scan: TOGS calibration, . ... wapp.20061226.a2048.0010 Scan: TOGS calibration, . ... wapp.20061227.a2048.0008 Scan: TOGS calibration, . ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Receiving systems . The SSRT has two independent receiving systems for recording solar observational data, and several ancillary receivers for checking, setting up and adjusting the instrument. The base receiving systen is a multichannel filter receiver for a simultaneous recording in 180 channels with the 500 kHz band each, adjusted at steps of about 600 kHz. ... Channel's band . ...

MINUTES of the RadioAstron Teleconference on December 13, 2011 Yu.Yu. ... IOC status update M. Popov informed the participants on the current IOC results. ... Kovalev added: we continue to observe pulsars and spectral line sources in radiointerferometer mode but only with spacecraft and we are also going to observing pulsars soon with space-ground baselines. ... Kovalev: It is fringe-fitting result. ... In RAFS05 we replace it with K-band observing (maser source Ori KL ­ spectral lines ~100000Jy). ...

... 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. ...

... Home Education Astro Answers Astro Answers ? The Big Bang, Inflation, and Latest Results from BICEP2 . ... Astro Answers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Archives . ... ArXiv] Numerical CMD analysis, Aug. 28th, 2007 . ArXiv] Decision Tree, Aug. 31, 2007 . Aug 31st, 2007| 11:47 pm | ... Once again, the middle of a recent (Aug 30-31, 2007) argument within CHASC , on why physicists and astronomers view ?3 sigma? results with suspicion and expect (roughly) > 5 sigma; while statisticians and biologists typically assume 95% is OK: . ... Category: CHASC , Cross-Cultural , Data Processing , Imaging , MC , Quotes , Stat | ... Chandra Blog . ...

... This gives a nice opportunity to check the quality of the FIRPO photometry against that of TIRGO. ... The values are Program POLYFIT V 10/Jul/90 ( A.Richichi ) - 24-Aug-1997 13:38:25 File : diff_temp_jc.dat Pol. degree: 1- N = 10- [ 2786.00- 4095.00 ] - [ 0.00- 1194.00] 1 -.10304E+01 0.26412E+00 2 0.29958E-03 0.74406E-04 sdev: 0.16063E+00 chi2 :0.24486E+01 Program POLYFIT V 10/Jul/90 ( A.Richichi ) - 24-Aug-1997 13:42:59 File : diff_temp_hc.dat Pol. degree: 1- N = 10- [ 2786.00- ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

Astronotes Armagh Planetarium's Stellar Blog! ... This image combines orbital imagery with 3-D modelling to show flows that appear in spring and summer on a slope inside Mars' Newton crater. ... Warm season flows on a slope in Newton Crater, possible evidence of salty liquid water active on Mars today. Image credit: NASA) . ... Frozen water is common on and under the surface of Mars but these images are the best evidence to date for the presence of liquid water on the Martian surface today. ...

... The results are used in quasireal time by the observing process, but also as input by hardware quality control, by the dynamical scheduler, and by the Science Pipeline. Among processing operations are the calibration of the atmospheric absorption, of phase radiometric correction, of pointing scans, of phase and amplitude reference measurements, .. ... Using the last few measurements, we will determine a provisional amplitude calibration curve (to be also used by the Quick Look pipeline). ...

... Tonight's Sky . ... space physics . ... Observing springtime deep-sky objects with a large telescope . ... The Large Hadron Collider produces first physics results . ... After 20 years in the making, the first physics results have come out of the European Organization for Nuclear Research's (CERN) Large Hadron Collider (LHC). ... Two circulating beams bring first collisions in the Large Hadron Collider . ... Only registered members of Astronomy.com are allowed to comment on this article. ...

Find Similar Abstracts . ... ASTRONOMICAL MODELS, GALAXIES, TOPOLOGY, UNIVERSE, ADIABATIC CONDITIONS, CELLS, GALACTIC CLUSTERS, SPATIAL DISTRIBUTION . ... The topological structure of the universe on a scale of a few to 100 Mpc is examined, reviewing the results of recent theoretical investigations. ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

SOME RESULTS FROM INTMINS . The experiment can be performed when the electron beam (instrument ISTOCHNIK ) and plasma blobs (instrument ARIEL ) are injected approximately along or perpendicular to the Earth's magnetic field. ... The pulses of frequency of 1000 Hz will generate EM waves and its harmonics. ... To increase the electron gun pulse duration up to D t = 0.5 f -1 ( D t = 5x10 -4 s) and to stabilise their frequency as good as possible. ... Back to the INTMINS Main Page ...

... GBT results . ... OOF Holography Home Page Quick Links: . ... This page contains the more recent measurements with our new OOF Holography system. ... The latest Out-Of-Focus data were taken with SCUBA on 11th February 2003. ... Aperture . ... Residuals . ... The results are summarised in the following plots: ~~available soon - see previous results page for now~~ . We have recently obtained some OOF data from the Green Bank Telescope operated by the NRAO in the US. the results are shown here. ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

... In this activity, students will observe that the faintest stars which they can see in the sky are affected by many things: the adaptation of their eyes to the dark, the presence of clouds or haze, the time of year, and the presence of light pollution. General Information . ... After completing this activity, students should have a better understanding of the practical processes for dealing with the light pollution problem and with other environmental and societal issues. << previous page | ...