... Satellite Detection in Advanced Camera for Surveys/Wide Field Channel Images (ISR 16-01) . ... Post-Flash Calibration Darks for the Advanced Camera for Surveys Wide Field Channel (ACS/WFC) (ISR 15-03) . ... Calibration of ACS/WFC Absolute Scale and Rotation for Use in Creation of a JWST Astrometric Reference Field (ISR 07-07) . ... Bias and dark calibration of ACS data (ISR 04-07) . ... ACS WFC and HRC field-dependent PSF variations due to optical and charge diffusion effects (ACS ISR 03-06) . ...

... Digital systems . ... Standard Stars - CCD Photometry, Transformations and Comparisons . ... Figure 2: A typical sample of transformation relations to the Landolt standard system (1996 Nov. ... 0.006 . ... Landolt's natural GaAs u - b system is not very close to the standard U - B system and so it is likely that, because the transformations were made using a U - B colour term alone, systematic U - B differences exist for some kinds of stars namely, A-F stars, reddened B-A stars and giant A-F stars. ...

... bvd=0/ . 2011-10-26 20:49 . ... nethned=0/ . ... vth=0.001/ . ... vth=0.1c/ . ...

XMM-Newton Science Analysis System . ... Meta Index / Home Page This section documents the parameters recognized by this task (if any). ... set . yes . ... frame exposuretimes below this value are flagged as bad (sec) . ... Add column with number of raw pixels per frame to EXPOSURE table . ... mark frames with more pixels above given level as bad . ... frames with more pixels than this level are flagged bad . ... 9999. 0. frames with a raw pixelrate above this level are flagged bad (pixels/sec) . ...

... 000, 000­000 (2009) Printed 29 April 2010 A (MN L TEX style file v2.2) Microwave observations of spinning dust emission in NGC 6946 AMI Consortium: Anna M. M. Scaife1 , Bojan Nikolic2,3 , David A. Green3 , Rainer Beck4 , Matthew L. Davies3 , Thomas M. O. ... ; received --; in original form 29 April 2010 ABSTRACT We report new cm-wave measurements at five frequencies between 15 and 18 GHz of the continuum emission from the reportedly anomalous ... Flux densities. ...

... Image Quality of the VLT . Total Optical Control . First light for the ESO VLT unit telescope 1 occurred during the workshop. ... The image shown (Figure 1 ) here was obtained with the VLT on May 16, 1998, in red light (R band), i.e. while the mirror was still uncoated. ... In this diagram (FIgure 2), the measured image quality of the VLT UT1 astronomical images is plotted versus the ``seeing", as measured by the Seeing Monitor, a small telescope also located on top of the Paranal Mountain. ...

... That star is called Sirius, and it is the brightest star in Earth's nighttime sky. ... But the other reason Sirius is so brilliant in our nighttime sky is that it is so close; Sirius is the nearest neighbor star to the Sun that can be seen with the unaided eye from the Northern Hemisphere. ... and even the nearest other star (alpha Centauri, visible from the Southern Hemisphere) would be 6,000 miles away. ... Sun . ... For example, alpha Centauri is the brightest star in the constellation Centaurus....

... Tonight's Sky . ... space flight . ... space physics . ... Integral challenges physics beyond Einstein . The gamma-ray observatory has placed stringent new limits on the size of quantum т??grainsт?? in space, ruling out some quantum loop gravity theories. ... The European Space Agencyт??s (ESA) Integral gamma-ray observatory has provided results that will dramatically affect the search for physics beyond Einstein. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... A task GCOMBINE in the STSDAS package, for combining images, is briefly reviewed. With a stack of input images, one can identify bad pixels by comparing the deviation of a pixel from the mean with a user-specified threshold times the clipping sigma. It is crucial that estimation of the mean and sigma be robust against unidentified outliers, in order to reject cosmic ray events effectively. ... By uniform weighting, we mean that the weight is a constant for all pixels in an input image. ...

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Irvin M. Winer . ... Weather . ... RainWise Mk III / 100m SW of Observatory . ... RainWise Mk III / N=0 ,E=90 ,S=180 ,W=270 . Air Temperature . ... 0.0 0.36 ( F) . ... AAG IR Sky Temperature . ... AAG Adjusted IR Sky Temperature . ... AAG Ambient Temperature . ... AAG Temperature Split . ... AAG Adjusted Temperature Split . ... Clear Sky Clock for Winer Observatory is provided by Attilla Danko. ... 2013 Winer Observatory. ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . ... python . ... actor . tccActor.py . ... 21 љ from tcc.cmd import showScaleFactor . ... 36 љ def __init__ (self, . ... 57 љ self. dataDir = tcc.base.getDataDir() . ... 61 љ self. tune = tcc.base.Tune() . ... 72 љ self. mirDevSet = tcc.mir.MirrorDeviceSet( . 73 љ actor = self, . ... 89 љ self. axisDevSet = tcc.axis.AxisDeviceSet( . ... 106 љ self. telMod = tcc.base.TelMod(os.path.join(self. dataDir , "telmod.dat" )) . ... Definition: tccActor.py:116 . ...