... Occasionally, one finds an ephemeris given with Julian Dates as argument. Only the Modified Julian Date is used here. ... Modified Julian Dates are discussed further in section on data files. ... If the tabular positions are referred to the equator and equinox of date, as in some of the tables in the Astronomical Almanac , the EQUINOX column can be omitted. ... In general, ephemeris data for moving objects should be kept in table files separate from star-position files. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... For example, modified Newtonian dynamics (MOND) has no relativistic extension, and so makes no firm lensing predictions, but galaxy-galaxy lensing data can be used to empirically constrain the deflection law of a MONDian point-mass. ...

. XMM-Newton Science Analysis System . omatt (omatt-2.46.2) [xmmsas_20080701_1801-8.0.0] . Meta Index / Home Page . The position-angle of the major-axis of each source computed by omdetect ( PA ) is modified by omatt so that the angle is measured anti-clockwise from the North Pole. XMM-Newton SOC/SSC -- 2008-07-02

... Abstract Convert ephemeris seconds past J2000 (ET) to integral encoded spacecraft clock (`ticks'). ... Required_Reading SCLK TIME . Brief_I/O Variable I/O Description -------- --- -------------------------------------------------- sc I NAIF spacecraft ID code. et I Ephemeris time, seconds past J2000. sclkdp O SCLK, encoded as ticks since spacecraft clock start. ... Particulars This function outputs discrete, encoded SCLK values. ... This function outputs encoded SCLK values. ...

... License agreement. All copyrights to Izmccd are exclusively owned by the author- Igor Izmailov. ... THE AUTHOR WILL NOT BE LIABLE FOR DATA LOSS, DAMAGES, LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING OR MISUSING THIS SOFTWARE. You may not use, copy, emulate, clone, rent, lease, sell, modify, decompile, disassemble, otherwise reverse engineer, or transfer the licensed program, or any subset of the licensed program, except as  provided for in this agreement.  ... Igor Izmailov. ...

... Spectrograph corrector removed and safely stowed. ... TCC commands are listed as such. ... This is especially helpful while moving mirrors with setmir, as the TCC window will show you how long each move will take. ^z means control-z; similarly for ^\, etc. ... Relax M1 using TCC command "queue run=relax" . ... Use setmir to move the primary to its nominal mechanically collimated orientation 0 0 0 0 0: . ... Relax M1 using TCC command "queue run=relax" (always relax the mirror after moving D, E or F)...

The vertex software has encoder corrections that can be interactively modified via the ocu or lcu interface. ... When adding a correction, the display position includes the correction. Preset mode works fine with the correction (eg. start at 270, add correction=1deg, display reads 271, preset to 270 moves the telescope be 1 degree). I think that program track mode works differently with the offsets.. mainly because we had an offset of 1 degree for 5 months and we could still see sour