... the computed pointing error for different vertical offsets (.ps) ( .pdf ): . the measured platform height offset and pointing error (.ps) (.pdf ): . ... This gave us a dataset of a pointing run with simultaneous info on the vertical error in the platform position The plots show the measured platform height offset and pointing error (.ps) (.pdf ): . ... The pointed error computed from the height offset matches the measured za error offsets when the platform is offset in height. ...

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

WCSLIB љ 5.15 . ... sph.h File Reference . Go to the source code of this file. intљ . sphx2s (const double eul[5], int nphi, int ntheta, int spt, int sxy, const double phi[], const double theta[], double lng[], double lat[]) . ... sphs2x (const double eul[5], int nlng, int nlat, int sll, int spt, const double lng[], const double lat[], double phi[], double theta[]) . ... sphdpa (int nfield, double lng0, double lat0, const double lng[], const double lat[], double dist[], double pa[]) . ...

... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

... HST Phase II Proposal Instructions for Cycle 20 > Chapter 12: Cosmic OriginsSpectrograph (COS) > ACQUISITION MODES > 12.8 Mode = ACQ/PEAKDConfig = COS/NUV . 12.8 Mode = ACQ/PEAKD . ... The visual magnitude from the Target List, along with the exposure time, will be used to verify that the integrated target flux through the selected aperture is appropriate for target acquisition. ... Specifies the number of dwell positions (including the initial target position) in an ACQ/PEAKD scan. ...

... Sighting the telescope, first at the tree and then at pole B, you measure the angle A of the triangle ABC, equal to the difference between the numbers you have read from the azimuth plate.. ... Why triangles? ... One large surveying project of the 1800s was the " Great Trigonometric Survey " of British India. ... Everest was the one who commisioned and first used those giant theodolites; they are now on display in the Museum of the Survey of India in Dehra Dum. ... Everest . ...

... The first of the equations defines the position of the spectral orders, m , in the raw image, while the second equation gives, for each order, the dispersion relation in one dimension. ... where the coefficients are computed using least squares techniques on a grid , i.e. sample number and line number of points located within the spectral orders of the image. These points in the grid are found automatically by an order--following algorithm, normally using the FLAT or STD image. ...

... The task first computes a background image in order to identify pixels that may be part of a source. The task uses two different algorithms for detecting ``point'' and ``extended'' sources. ... This is necessary because some faint ``point'' sources may have been missed by the point-source detection algorithm, but picked up by the extended-source detection algorithm. ... When the detection process is finished a check is made on extended sources to see if they can be split into two or more sources. ...

... This appartus will drop a mass from different heights. When the mass strikes the ground, some percentage of its original energy will be absorbed by the ground. ... The percentage of the energy which is absorbed by the surface on each "bounce" (EAS) . ... The impact velocity of the object will also be given at each bounce. ... Start= Drop the ball after Energy, Mass and EAS have been set; resume after step or pause has been selected . ... Reset = Reset experiment to intial values . ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

... Posted by hlee . ... Click for what was appeared in arXiv this week. Continue reading ?[ ... Category: arXiv , MCMC , Uncertainty | ... Since I began to subscribe arxiv/astro-ph abstracts, from an astrostatistical point of view, one of the most frequent topics has been photometric redshifts . ... Just searching by photometric redshifts in google scholar and arxiv.org provides more than 2000 articles since 2000. ... Category: Algorithms , arXiv , Data Processing , Galaxies , Stat | ...

... 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 . ...

... Q 12.649 0.523 0.342 -0.108 4444 -4.647 -4.582 "n6231_ 178" 16 53 48.63 -41 51 54.1 J2000.0 ! ... A few lines are then added to the top (see readme_asc2dxf for details) to produce input for asc2dxf :in.coo: n6231cp6.dxf slot line 2.00 43.00 9.00 43.00 point 9.773 19.026 n6231 _ 171 Q 12.649 11.236 57.382 n6231 _ 178 I 14.533 ... the output of this program is as follows :n6231cp6.dxf: 0 SECTION 2 ENTITIES 0 CIRCLE 8 1 62 3 10 43.00 20 43.00 30 0.000 40 43.00 0 ...

... A comparison of the computed and experimental relations F max ( H), as well as comparison of drift scans of point sources across different horizontal cross-sections of the BP with the corresponding computed cross-sections were made. ... The drift scans of the point source 3С84 (H=87 o ) at the wavelength 7.6 cm across the horizontal cross-sections of the BP (black lines) and the computed horizontal cross-sections of the BP corresponding to them (red lines). ...

... 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 ...

Set the display of the status bar, tool bar, locator bar, and properties associated with the display of the pointer position in the Locator bar. ... Set fixed point . ... When the fixed point is set, and the display format is (DX, DY), (DIST), or (R, Theta) then give the location relative to the fixed point. ... Set the fixed point to (0.0, 0.0). ... DX, DY] Display the delta in X and Y of the position of the mouse relative to the fixed point, or (0, 0) if no fixed point has been selected. ...

Stellarium 0.12.3 . ... Classes . ... gSatTEME Class Reference . Sat position and velocity predictions over TEME reference system. ... Set compute epoch for prediction. ... gVector љ . ... Get the TEME satellite position Vector. ... Get the Geographic satellite subpoint Vector calculated by the method compute SubPoint. ... gVector Satellite position vector meassured in Km. x: position[0] y: position[1] z: position[2] . ... gVector Satellite Velocity Vector measured in Km/s x: Vel[0] . ...

... Previous: Calibration with the ISOPHOT Interactive Analysis (PIA) . ... This article is devoted to a description of the image processing capabilities of PIA, on the basis of the different mapping strategies with ISOPHOT. ... As input for mapping processing, PIA uses ISOPHOT data which has been reduced to the level of sky brightness (in MJy/sr) for each raster (and chopper) step and per detector pixel, together with the associated pointing information per raster point. ...

... This plug-in enables you to add various types of lighting effects to your (RGB) image. ... Directional light . ... Well, you get the idea :) The default settings for this light-type is [-0.5,-0.5,-1.0]. ... Higher values makes your image reflect a lot of light (appear lighter or more intense), while smaller values makes it appear more dull or matte. ... A value of 1.0 makes your image very shiny (bright high-lights) while smaller values makes you image less shiny, making the high-lights dimmer. ...

. Computer Ephemeris. Lunar equatorial positions. Explanations. Each row contains at 0 h and 12 h of Time Dynamical Terrestrial: month, day, apparent right ascension (hours, minutes, seconds), apparent declination (degrees, minutes, seconds of arc) and geocentric distance (in Earth's radii).