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. ...

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 ...

... 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. ...

... 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. ...

... 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 . ...

... 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. ...

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. ...

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. ...

... 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 . ...

... 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 . ...

... 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. ...

Stellarium 0.12.3 . ... Classes . ... Renderer . ... ClassљList . ... LogBook Class Reference . ... voidљ . enableLogBook (bool b) . ... virtual boolљ . ... Detect or show the configuration GUI elements for the module. ... virtual voidљ . ... getCallOrder ( StelModuleActionName actionName) const . ... virtual bool LogBook::configureGui . boolљ . ... virtual void LogBook::draw . ... The main StelStyle instance should be passed. virtual void LogBook::init . ... virtual void LogBook::update . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Sequence of four video frames captured at 01:05 BST at Armagh Observatory on the night of the 24/25th July 2013, showing the onset, development and demise of the sprite. ... Unlike common lightning discharges, which often jump between clouds or between the clouds and the ground, sprites are associated with similarly powerful electrical fields that occur high above the clouds of the EarthтАЩs atmosphere. ...

... The measured gravitational waves match those expected from two large black holes merging after a death spiral in a distant galaxy, with the resulting new black hole momentarily vibrating in a rapid ringdown . ... The featured illustration depicts the two merging black holes with the signal strength of the two detectors over 0.3 seconds superimposed across the bottom. ... Two Black Holes Merge . Advanced LIGO: Gravitational Wave Detectors Upgraded . ... A Step Toward Gravitational Wave Detection ...

... 2016 February 11 . LIGO Detects Gravitational Waves from Merging Black Holes . ... The first-ever detection was made by both facilities of the Laser Interferometer Gravitational-Wave Observatory (LIGO) in Washington and Louisiana simultaneously last September. ... The measured gravitational waves match those expected from two large black holes merging after a death spiral in a distant galaxy, with the resulting new black hole momentarily vibrating in a rapid ringdown . ... About APOD | ...

Next: Gamma-Ray Bursts Up: Detection rate of binary Previous: Detection rate of binary . Figure: A schematic dependence of the detection rate ratio on the detector sensitivity (the upper scale) and the limiting distance from which binary NS (1.4+1.4M , the middle scale) and binary BH (8.5+8.5M , the bottom scale) mergings can be detected. ... At the end of this segment evolutionary effects can affect the detection ratio (the dashed line). ...

The deferred photometric pipeline of SNLS uses only photometry to detect and classify type Ia supernovae (SNe Ia). The advantages of a photometric sample include larger number of events classified as type Ia, larger redshift coverage and no need for spectroscopic observations. ... First, a subtracted image stack treatment was developed to reduce the number of non SN-like events using morphological component analysis. ... Second, a new classification using photometric SN redshifts is introduced. ...

WPLTN-2012 Technical Workshop Research and Experiment of Lunar Laser ranging Yaoheng Xiong, Zhulian Li, Yuqiang Li, Honglin Fu, Xiangming Zheng, Dongsheng Zhai, Yuncheng Zhang Yunnan Observatory Chinese Academy of Sciences St. Petersburg , Sep24-28 2012 LLR researchs & experiments in Kunming Overview Key problems of LLR Very long distance ranging, sub-single photon detection,.. ... St. Petersburg , Sep24-28 2012 LLR Experiments in Kunming Station Thank you ...

Detecting Long Period Planets with WASP 1 University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL To estimate the number of transiting planets in this period range, planetary occurrence rates from Kepler (Fressin et al, 2013) for varying spectral type & planet type were used. ... Two `stare' fields are currently available from 2011 (330,000 stars) producing a detection rate of 3.0±2.4 planets (Fig 4). ... Since 2011, WASP-N cameras have observed in `Stare' mode, with cadence of ~1-2min. ...

... Allows webmasters to configure the response of Apache to some error or problem. Customizable responses can be defined to be activated in the event of a server detected error or problem. e.g. if a script crashes and produces a "500 Server Error" response, then this response can be replaced with either some friendlier text or by a redirection to another URL (local or external). ... New behavior . ... redirect to a local URL, or . ... Each new variable will have the prefix REDIRECT_ . ...