Dear NTT team/Olivier, I include here the OB, finding chart and this readme file for the DDT proposal 266.B-5637(A). I apologise for any stupidities in the OB - but I'm sure you'll let me know if there are any unresolved issues! When acquiring the object, it is more important to get the target itself centred on the slit than the radio galaxy Pic A itself (in case of a small error in slit PA. I have asked for two red exposures and three blue ones since you advised me against the use of the dichroic. I was not sure that this is the best order sorting filter for the red arm - please change this if there is a better one - GG375 seems a bit short... Thanks a lot and regards, Bob... 19 Jan 2001 OBSERVATION BLOCK BREAKDOWN =========================== PicA_E_X_spec 266.B-5637(A)/SM/EMMI Target : Pic-A-E, RA: 05:20:04.850, Dec: -45:47:14.000, Eq: J2000 User Com. : The position refers to a point half way between the target a nd the radio galaxy (see the finding chart) ObsDesc: spectrum 20 min RILDAT03: Exposure time 0 Slit Y pixel coordin.. 1024 Starplate Slit#1.5 Red color filter Free Preset flag T Rotator offset angle 100.7 RA of guide star 0. DEC of guide star 0. Magnitude of guide s.. 12. REMDOT01: List of exposure times 1200 Number of exposures 1 Slit width 1.5 Slit length 330. Red grating Grat#13 Red central wavelength 700 Red color filter CG375#644 CCD readout speed normal CCD windowing flag F First column of window 1 First row of window 1 Number of columns 2086 Number of rows 2046 CCD X binning 1 CCD Y binning 1 Red neutral density Free Standard Star flag SCIENCE REMDOT01: List of exposure times 1200 Number of exposures 1 Slit width 1.5 Slit length 330. Red grating Grat#13 Red central wavelength 700 Red color filter CG375#644 CCD readout speed normal CCD windowing flag F First column of window 1 First row of window 1 Number of columns 2086 Number of rows 2046 CCD X binning 1 CCD Y binning 1 Red neutral density Free Standard Star flag SCIENCE BLMDOT01: List of exposure times 1200 Number of exposures 1 Slit width 1.5 Slit length 330. Blue grating Grat#4 Blue central wavelen.. 500 Blue color filter Free CCD readout speed normal CCD windowing flag F First column of window 1 First row of window 1 Number of columns 1124 Number of rows 1024 CCD X binning 1 CCD Y binning 1 Blue neutral density Free Standard Star flag SCIENCE BLMDOT01: List of exposure times 1200 Number of exposures 1 Slit width 1.5 Slit length 330. Blue grating Grat#4 Blue central wavelen.. 500 Blue color filter Free CCD readout speed normal CCD windowing flag F First column of window 1 First row of window 1 Number of columns 1124 Number of rows 1024 CCD X binning 1 CCD Y binning 1 Blue neutral density Free Standard Star flag SCIENCE BLMDOT01: List of exposure times 1200 Number of exposures 1 Slit width 1.5 Slit length 330. Blue grating Grat#4 Blue central wavelen.. 500 Blue color filter Free CCD readout speed normal CCD windowing flag F First column of window 1 First row of window 1 Number of columns 1124 Number of rows 1024 CCD X binning 1 CCD Y binning 1 Blue neutral density Free Standard Star flag SCIENCE ConSet: for Pic A Seeing : 1.5 Sky transparency : Variable, thin cirrus Air mass : 2.0 Fractional lunar illumination : 0.2 Moon angular distance : 30 User Com. : Acquisition is for the use of a grating, ie, centering using the slit viewer ============================