FGS Instrument Handbook for Cycle 24 . ... Fine Guidance Sensor Instrument Handbook for Cycle 24 > Chapter 4: Observing with the FGS > 4.3 Position Mode Observing Strategies . ... 4.3.2 Drift and Exposure Sequencing . 4.3.3 Cross Filter Observations . 4.3.4 Moving Target Observation Strategy . ... In Position mode, the FGS can track a bright target (V ) whose motion is less than ~ 0.1 arcsec per second. ... Transfer mode observations of moving targets are discussed in the next section. ...

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• CCD Position and Orientation on Sky
• A Guide to Kermit Data
• Fine Guidance Sensor Data Handbook

This page provides explanatory text for the dials shown on the Rice Current Solar Wind Conditions and Current Solar Wind Conditions (Dials Only) webpage. These dials use the last good received set of measurements from the Real Time Solar Wind package on the Advanced Composition Explorer (ACE) spacecraft. ... Measured) This quantity is the number of solar wind protons per unit volume as measured by the ACE Solar Wind Electron Proton Alpha Monitor (SWEPAM) . ... It is measured by ACE/SWEPAM. ...

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... Drive the Reflector in elevation to the zenith position. ... Elevation | ... 7 SUMMARY OF REFLECTOR SURFACE ACCURACY MEASUREMENT Test Date: Start Time: End Time: Weather Conditions during Test: Comments: By- _________________ Date- _______________ SUB-REFLECTOR AND FEED POSITION AND ALIGNMENT MEASUREMENT 1 2 OVERVIEW This test is to measure and record the positions of the sub- reflector and feed horn using photogrammetry. ... 3 4 SUB-REFLECTOR/FEED POSITION AND ALIGNMENT MEASUREMENT TEST PROCEDURE 1...

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• http://www.naic.edu/~phil/optics/turpos/bestturpos.html
• optics
• on,off position switching offsets

... Here are some tips on how to get the best guiding out of our current system. ... NA2 Guider Tips . ... Optical double stars, late-type galaxies, and bipolar PNs may pose a problem for guiding, as will objects where you desire to observe a position away from the bright center (e.g., SNs near bright galaxies). ... Field Star is good if your object is too faint or asymmetrical for Boresight guiding, or if you need the slit to be off-center. ... Use Field Star guiding almost always. ...

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• Guider Mechanical Commands
• sgs summary
• Telescope Tracking Smoothness

... An OBJECT column gives the name of the object observed (usually a star name). ... In critical cases, it is common practice to measure sky on two or more positions around a target object, and these positions must be identified. ... A general treatment of this problem requires a column called OBJECT, bearing the usual name of the object (as in the star tables); a column labelled STARSKY, to distinguish between star+sky, star alone, or sky alone; and additional columns to identify the sky position. ...

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• Arcsecond Positions of UGC Galaxies
• HyperLEDA documentation: parameter: celpos
• Source Positions

... srcinfov strra=<ra> strdec=<dec> apos=<apos> withsrccoord=true|false . ... srcinfov computes for each instrument the position of a given celestial source in the field of view (in TELCOORD coordinates). Input is the satellite attitude in terms of Right Ascension/Declination of the star tracker viewing direction and astronomical position angle [deg]. ...

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• strbs: Star Tracker BoreSight calculation

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

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INFRARED FOURIER-SPECTROMETER SICH-F . ... Instrument work regimes: 1) Inside. 2) Calibration at inside standard sources 2 - 4 times per a rotation. 3) Calibration at "free space" 2 - 4 times per a rotation. 4) Infrared radiation measuring 10 - 40 min. per a rotation. ... Spectrometer consists of the photodetector block and the block of signal processing and control. ... Diagnostic information and attach data will transfer by state telemetric channels. ... Detector temperature. ...

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... Activity 3: Measuring the Position of the Sun in the Sky . Purpose: To give students the opportunity to measure the position of the Sun in the sky using simple tools and methods. ... Alternatively, you may have students devise their own methods of relative measurement and apply them to measuring the position of the Sun in the sky. ... Rangi is the sky, and when the Sun is near Rangi's head it is summer in New Zealand. ... Read the Maori story to students. ... back to Teachers' Newsletter Main Page ...

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• ASP: To Every Season There is a Reason
• ASP: Making Your Own Astronomical Camera
• ASP: Good Astronomy Activities on the WWW

... User Guide ] Task: mbspect Purpose: Make spectrum and measure velocities from a Miriad image. ... MBSPECT makes a spectrum of the velocity or frequency axis of a Miriad image. ... No default. ... Spectral units are always in the same units as the input file (even if a conversion is performed for the plot and/or log file). ... A second value will overwrite the default label for this axis. ... Key: order Order of optional robust (clipped polynomial) fit (0-10) to be applied to the spectral axis. ...

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• casacore: measures/Measures/MeasComet.h Source File
• GPLOT recipes
• Head Positions and Track Assignments

... 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. ...

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• Imaging Polarimetry with NICMOS

... Positions in 2000 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2001 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2002 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2003 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . Positions in 2004 - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec . ...

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• PhD position, Centre for Astronomy, NUI Galway: deadline 18 July 2008 |
• ASTRONOMICAL PHENOMENA FROM MARS
• Human Orrery

... The tracking (i.e. unguided) performance of the United Kingdom Infra-Red Telescope (UKIRT) relies on the accuracy of its 24 bit absolute encoders. These have been long known to generate two systematic errors. The first is a periodic error resulting from the encoder deriving the last 8 resolution bits by interpolation between the rulings on its code disk. ... To estimate the measurement errors we introduce a periodic filter to model and a Kalman filter to model . ...

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• VLT Data Quality Control
• ADASS 2003 Conference Proceedings
• A Technique for Determining Proper Motions from Schmidt Plate Scans at ST ScI

SLIDE 1 Coherent beam­beam e#ects study. ... He has shown that a finite length (in other words equal to # # ) of colliding bunches can lead to the coupling of synchro­betatron modes in the beam­beam system, and thus a head­tail type instability of colliding bunches may arise. ... These modes have been observed in di#erent machines. ... SLIDE 5 Figure shows the dependence of the measured and calculated synchro­betatron mode tunes on the beam current for equal electron and positron bunch intensities. ...

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• Positions and Proper Motions
• Positions and Proper Motions - South
• Iowa Robotic Telescope Facilities

October 14, 2010 =============== Address BUGS In bisque/mks: add Home on startup -- currently must be homed with the joystick reverse tracking direction in southern hemisphere check southern hemisphere mappings In order of priority -- Make a guide and manual available. Provide a method of determining best pointing correction parameters. ... Fully test pointing corrections on a system capable of arc second accuracy. ...

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• Measurements (ImageJ API)

Next: ST-6 Data Collection Up: Data Acquisition Previous: Data Acquisition with . ... The tracking software is extremely important to data collection, and will be presented here. The tracking software is run from the CPU box. ... The exposure adjust will set the exposure time. ... After the drive is calibrated, the track button will set the ST-4 in a mode where it will track the star until it either loses track or the operator stops the track. ...

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• Spatial Region Boundaries
• The AstroStat Slog Blog Archive [ArXiv] The Importance of Being First: Position
• Comments on: [ArXiv] The Importance of Being First: Position Dependent Citation

... Astrophysics Group . ... COAST Technical Details . ... The beam from each telescope passes through an aluminium tube, which serves to isolate it from the atmosphere, into the beam combining building. ... Inside the beam combining building the outer annulus of each light beam is separated and used in the acquisition and autoguider system. ... A simple algorithm is then used to detect the offset from the centre of the field, and this is corrected using piezo-driven mirrors at the back of the...

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... Determination of the direction towards the center of the Sun’s visible disc relative to spacecraft axes. ... The direction to the Sun is computed in the instrument coordinate system relative to the pixels' position on the linear CCDs, illuminated with the light passing through the coding mask. ... less than 0.1 deg./s                                        3 arcmin . ... Field of view, deg . in the plane OXZ                                           –60…+60° . ... Optical Solar Tracker (OSD) . ...

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• Vol vers Mars : le Voyage de Retour
• Coordinates
• The INTERBALL Tail PROBE orbital elements

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... ESO . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... Catch a Star 2013 . ... View of one of the paths (later to be completed with railway tracks) along which the smaller, moveable telescopes of the Very Large Telescope Interferometric array (VLTI) will later be brought into different positions. ...

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• Repositioning track for the VLTI | ESO United States
• Repositioning track for the VLTI | ESO Ireland
• Repositioning track for the VLTI | ESO Australia

Beam Parameter Measurements New Physics at TeV Scales and Precision EW Studies Eric Torrence University of Oregon Eric Torrence 1/14 March 2005 Beam Instrumentation Introduction 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 490 492 494 496 498 500 502 504 Root(s) (GeV) ( -, - ), ( +, + ), ... dL -----dE L 0 s Fundamental Goal Spin-dependent absolute collision energy spectrum Typical Components · · · · · Beam Energy ... Eric Torrence 14/14 March 2005 ...

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• Potential Energy
• Physics 101: Conceptual Physics: Fall 1998
• Basics of Wind Energy