Calibration data from jun12 through dec12 was used to look at the system performance and pointing errors of various receivers. 06jun12 - model 18 installed. ... Prior to this, little power was getting into polB. 430 dome data used was after 19oct12. 28oct12: new sbn receiver installed . ... they had an exceptionally large pointing error for this receiver (say > 60 asecs) . ... The offsets for the other receivers are then computed relative to sbn using 2 or 4 sources.This was done back in apr-may12. ...

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• system Performance
• alfa C0,1az,3z cor. oct11
• Pnt correction after may11 level platform.

... new LaTeX template, approved version . ... only minor changes for task version 1.4 . ... applies to task version 1.5: . ... applies to task version 1.6: minor updates . ... applies to task version 3.0: new parameter names . ... applies to task version 3.1: parameter gain file removed . ... applies to task version 5.0: new parameter randomization_on . ... applies to task version 5.1: new optional parameter srcposition . ... Null values, high/low accuracy gain/cti correction, new errors and warnings ....

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Some WFPC2 programs have critical target positioning constraints (i.e. the target must be as close as possible to a specified aperture). ... We have looked carefully at a sequence of images to assess the absolute pointing performance that HST delivers to WFPC2. ... Where necessary, coordinate and proper motion errors were accounted for (with the assumption that SAO catalog coordinates are exact - they form the astrometric basis for the guide star coordinate system). ...

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• Updates to STIS Spectroscopic Throughputs
• WFPC2 Header Changes due to OPUS 10.0 Update
• Updates to the STIS Calibration Software, Reference Files, and OTFR Pipeline

... B.1 New functionality . ... B.3 Semantic changes from CSS1 . ... CSS2 builds on CSS1 and all valid CSS1 style sheets are valid CSS2 style sheets. The changes between the CSS1 specification (see [CSS1] ) and this specification fall into three groups: new functionality, updated descriptions of CSS1 functionality, and changes to CSS1. ... Several internationalization features, including list numbering styles , support for bidirectional text , and support for language-sensitive quotation marks . ...

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... Updates to HST Standard-Star Fluxes . ... These data are in an STScI data base named CRCALSPEC and have been divided into two categories to help the user understand the origin and accuracy of these flux distributions. ... 1990, ApJS, 73, 413) and Oke (1990, AJ, 99, 1621) spectra are available. Oke (1990) used the DoubleSpectrograph on the 5-m Hale Telescope to obtain these spectra for HST calibration; and these data are identified in the HST data bases by the keyword OBSMODE=OKE DBSP. ...

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• TUI:Scripts:Built In Scripts:Telescope:Pointing Data
• Mirror Controller Version History
• Mirror Controller Actor

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Lagrangian Points
• New Mirrors
• Global change [Oulu]

... new: . ... Python 2.6.2 + most up-to-date modules (December 2009) . ... pyQC script structure . ... The current installation of python and its associated modules on our DFO machines is extremely old (i.e. python 2.4.2 was released in Sept. ... The new python executable lives in: /qcdp/bin/python . ... The first figure shows the execution times for the old python installation, while the second figure shows the execution times based on scripts running the python 2.6.2 installation with the new modules...

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• ESO - Phase 3 Release Validator
• pyQC: overview

This document describes tips for converting from xpa 1.0 (Xt-based xpa) to xpa 2.0 (socket-based xpa). ... The changes are straight-forward and almost can be done automatically (we used editor macros for most of the conversion). ... Also change first 2 arguments from XtPointer to void *. ... Change NewXPACommand() to XPAcmdNew(), with the new calling sequence: xpa = NewXPACommand(toplevel, NULL, prefix, NULL); is changed to: xpa = XPACmdNew(xclass, name); . ... Go to XPA Help Index ...

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• Changes for release 1.8
• UPDATE of AGASC1.3 to AGASC1.4
• Changes For Users from XPA 1.0 and 2.0

Next: Version 6.05 Up: Old Releases Previous: Version 8.1 Contents . Released on Dec. 13, 2008. Warnings issued if source motions are significant when writing Vex files. ... Dec. 13, 2008 RCW . ... 12, 2008 AP and RCW. ... Started adding an indicator of when the Tsys measurements are done at each station. ... Add VLA freq.dat entries for Methanol at 6668 MHz and OH at 6030 and 6035 MHz. ... Sept 20, 2008 RCW . ... RCW Sept. ... Add VLA integration time (//DS line). ... 2007 RCW . ...

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• VLBI Wiki | Main / ASKAPObservingSummary
• Parkes Clock Corrections for TEMPO (Outdated procedure)
• PmWiki | Main / Timeline

... Range Widgets . ... Also, almost all of the functions and signals it defines are only really used in writing derived widgets. ... The "update policy" of a range widget defines at what points during user interaction it will change the value field of its Adjustment and emit the "value_changed" signal on this Adjustment. ... The "value_changed" signal is emitted continuously, i.e., whenever the slider is moved by even the tiniest amount. ... Scale Widgets . ...

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• htpasswd - Manage user files for basic authentication - Apache HTTP Server
• Source Positions
• Example

... March 25, 2006: Version 3.0.0 New control panel with an observing queue and a log Pointing to apparent position including proper motion precession and nutation to epoch of ... declination axis to polar axis non-orthogonality optical axis skew altitude- and azimuth-dependent mechanical effects encoder reference Control of telescope hardware August 20, 2006 Version 3.0.4 Modifications from Dan Azari adding features suported by the RC Optical Systems ...

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• http://www.astro.louisville.edu/software/astroimagej/updates/release_notes.html
• http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.1/CHANGELOG
• http://www.astro.louisville.edu/software/sbig/xmccd-5.1/CHANGELOG

... Example: Moving to a new database. ... Load the dump file into a new database. createdb ts_db_b; psql ts_db_b < ts_db_a.sql; . ... The oids pointing to tsearch functions are correct in database ts_db_a but do not exist in database ts_db_b. Try installing tsearch2.sql into the new database ts_db_b before loading dump file ts_db_a.sql. dropdb ts_db_b; createdb ts_db_b; psql ts_db_b < /usr/local/pgsql/share/contrib/tsearch2.sql; psql ts_db_b < ts_db_a.sql; . ... Does tsearch work though? ...

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• New Mirrors
• Zen: All changes for plantuner
• Zen: All changes for pg controldata

... Apache HTTP Server Version 2.2 . ... htpasswd is used to create and update the flat-files used to store usernames and password for basic authentication of HTTP users. ... Resources available from the Apache HTTP server can be restricted to just the users listed in the files created by htpasswd . ... Files managed by htpasswd may contain both types of passwords; some user records may have MD5-encrypted passwords while others in the same file may have passwords encrypted with crypt() . ... Delete user...

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• mod_file_cache - Apache HTTP Server
• Converting Modules from Apache 1.3 to Apache 2.0 - Apache HTTP Server
• Procedures for Observations

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Lagrangian Points
• Magnetism before Gilbert "
• Gauss and the Global Magnetic Field

... The gyro rate data minimizes the effects of noise from the star measurements, and the long-term accuracy of the star data provides a high-fidelity estimate of the gyro bias drift. ... The filter estimates 3-axis error in current attitude estimate and 3-axis gyroscope drift rate, resulting in six estimated quantities referred to as the filter "state." ... In the upper left graph, the solid line shows the actual pitch estimate error for a 500 second nominal dither observation. ...

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• Kalman Filtering in Chandra Aspect Determination
• Simulation of HST PSFs using Tiny Tim
• ADASS 2003 Conference Proceedings

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Hayabusa update . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• Out-of-this-world Award 2008 update | Astronomy.com
• Kepler helps astronomers update census of Sun-like stars | Astronomy.com
• Groups | Astronomy.com

OptInt PmWiki . ... Trolley Software . Edit Page | Page History | ... Software Design Documentation . ... PmWiki . ... PmWiki FAQ . ... Return to Trolley Software ( Edit ) . ... July 22, 2011, at 05:20 PM by EBS - . ... For Debian etch using a network install: . ... July 22, 2011, at 05:08 PM by EBS - First edit - trolley software compilation instructions . ... The essence of the solution is to generate a virtual PC on your desktop PC and install an old Linux distribution, circa 2006, in that. ...

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• OptInt PmWiki : MROIDelayLine / FDR Todo Lists
• OptInt PmWiki : FDR Todo Lists | History

L1 Simulation Upgrade December 6th, 2004 BaBar Collaboration Meeting SLAC Eric Torrence University of Oregon Eric Torrence 1/15 December 2004 Phase 0 (Now) DchDigis EmcDigis EmtSim trgDC L1Accept This IS the current SP6 (14.4.X) Base simulation code unchanged, but interface elements are updated (Digis, TsfLUT) Remaining changes are inside black blob Eric Torrence 2/15 December ... Done · L1DZpdTrackDigi - cellLocation and cellPhi are not currently being simulated. ...

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Pulkovo permanent GNSS station PULK . ... Initially, Trimble 4000SSE receiver and TRM33429.20+GP antenna without radome were installed at the station. ... Both hourly and daily data are delivered to EPN data centers. ... Daily PULK station position is computed in the Precise Point Positioning (PPP) mode using orbits, clocks, EOP, and antenna absolute phase center corrections provided by the JPL ftp service . Ocean loading is computed using data obtained from the OSO ocean tide loading provider . ...

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• The Canadian S2 Correlator - Principles of Radio Interferometry