Jean Ballet, CEA/SAp 23 March 2004 Bit flips in the MOS offset tables · First detected in 0640_0160160101 MOS 1, CCD 6 by M. Ceballos in routine screening. ... All low energy events on that row did not pass the EDU. ... MOS offset flips · Charged particle induces bit flip in a single onboard offset value (here +256 at RAWY=303) · Results in very negative ENERGYE3/4 values over two rows on each side, rejected by emevents · Unknown to eexpmap · Can last a few orbits · Detected automatically in SAS 6. ...

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• The detection algorithms
• Deficiencies
• Algorithm

HI source finding algorithms Comparing the general purpose Duchamp algorithm to a purpose built HI source finding algorithm Talk Outline · Common elements of source finding algorithms · The Duchamp algorithm · · · · Algorithm Strengths Draw-backs Improvements · An alternative HI source finder algorithm · Key differences · Algorithm · Preliminary work · Conclusion Common elements of general ...

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• http://www.atnf.csiro.au/research/workshops/2010/sourcefinding/Johnston-Hollitt.pdf
• ATNF Daily Astronomy Picture
• difx:ivs2016extras [ATNF VLBI Wiki]

... The performance of each algorithm on the simulated lightcurves is scored accor ding to the rates of false positive (Type I) and false negative (Type II) errors. ... Combined: threshold normalization = 5 в 10 -4 References · Aschwanden, M.J., Nightingale, R.W. Tarball, T.D., & Wolfson, C.J. 2000, Ap J , 5 3 5 , 1 0 2 7 · Hudson, H.S. 1991, SoPh, 133, 357 Figure 3 Calibrating the event detection algorithms to optimize false positives, using the simulated lightcurves with zero events. ...

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• Detect
• Dewobble Procedure: treating each obi separately
• Additional Tools

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

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• Detection of unique bright radio flare of X-ray binary

... JWST . ... JWST will provide unprecedented stability to aperture masking, which should enable an order of magnitude better contrast than ground-based masking, in addition to a far lower thermal background. (click here for the abstract) . Reference: Greenbaum, A. G. , Johns Hopkins University, Co-authors: Laurent Pueyo, Anand Sivaramakrishnan, Sylvestre Lacour, 2015, ApJ, 798, 68 . ... Reference: Henry Lin , Harvard, Co-authors:- Gonzalo Gonzalez Abad and Abraham Loeb 2014, ApJ, 792, L7 . ...

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• Stellar Photometry
• GOODS/HST Transient Search Results
• Treatment of Undersampled Image Frames

... Images of Titan by the Hubble Space Telescope (HST) are very small in size and have very low spatial resolution. Special methods of image processing are required to extract information from these images. ... Currently, in searching for features on Titan's disk imaged by the HST PC1 detector, we are faced with two problems: (1) Low spatial resolution (Figure 1). ... The two aforementioned problems necessitate processing Titan images by special methods to extract information for analysis. ...

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• Cheating Poisson: A Biased Method for Detecting Faint Sources in All-Sky Survey
• ADASS 2003 Conference Proceedings
• Asteroseismology-Observing for a SONG

Proposal Identification No.: A2200 Date Received: 2006-Feb-02 17:19:53 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Extragalactic 33 Hours HI Content of Distant Galaxy Clusters As the redshift increases, it gets ever more difficult to detect the HI signal from individual galaxies, as their angular separation from companions decreases. ... Part of the observing run. ...

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• http://www.naic.edu/vscience/schedule/2013Fall/DemoresttagP2818.pdf
• http://www.naic.edu/vscience/schedule/2013Spring/DemoresttagP2780.pdf
• http://www.naic.edu/vscience/schedule/2014Spring/LorimertagA2854.pdf

Next: Creation of Sky Up: Additional Processing Previous: Additional Processing . The flat field calibration frame may not have the same illumination pattern as the observations of the sky. In this case when the field field correction is applied to the sky data, instead of being flat there will be gradients in the background. ... Like the flat field frames, the illumination correction frames may be data set dependent and hence there should be an illumination frame for each data set. ...

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• Line Detection in the Comparison Spectrum
• SEARCH/ROMAFOT
• Regularization of Van Cittert's algorithm

... Download the code document. A new version will be released soon with a more detailed document. An X-ray source detection algorithm, optimally designed to detected faint extended sources, making use of Voronoi tessellation and Friend-of-Friend technique. ... This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License. Download sweepline.py . ... ROSAT 400d . ROSAT MACS . ROSAT WARPS . ROSAT REFLEX . ... XMM XCS . ...

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• Virgo Group - Gravitational Wave basics
• K-band Arcetri Obscured Supernova Search - Detected Supernovae
• Custom Error Responses - Apache HTTP Server

... Planetarium Staff . ... Freedom of Information . ... The Armagh Planetarium website has been enabled to use BrowseAloud software. ... See the following instructions on how to increase the size of the text on any web page you are viewing. тАв Press ' Ctrl ' and ' + ' to increase the text size, ' Ctrl ' and ' - ' to decrease the text size. ... For information on changing the text size in older browsers and on different operating systems visit the BBC My Web My Way site for Windows, MAC and Linux . ...

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... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

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• SIMP > biological > increased productivity > ers0206170118
• Additional Data
• Galileo to Jupiter