11/26/2020 Civil Zastrocky & Brotherton @ WIRO Longslit (remote) Outside Temp(F) -- 27 (start) Outside Humidity(%RH) -- 44 (start) Wind Speed(MPH) -- 20 mph (start) Wind Direction -- 252 (start) Slit width 5 arcsec, set on September 17 empirically 900l/mm grating, sub-array center column 1050, width 360 Longslit focus set to 310 on instrument. Seeing= 11.7 pix (0.38 arcsec per pixel) or 4.4 arcsec focus (temp=11F) Centered for field, collimation numbers at Dec 22:30 HA -1:01 0:01:04.4 -0:25:28.0 Fill LN2 #1 (16:55) Flat at fixed -6.25 48, dome 15 Index Object EXP secz UT T-Out Notes ------------------------------------------------------------------------------ a001-10 CuAr (Zenith) 2 01:05 15 @-95C a011-20 Bias 0 01:07 15 @-110C a021-30 Flat 3 01:12 15 Lamp @95% a031-40 More Flats 3 7:45 11 ice check, ok Looks good -- no ice on primary, flats ok, humidity 72% turn off wetness sensor, work east a041-43 G191B2B 30 8:07 11 seeing 4.4" a044-47 Mrk6 600 8:20 11 snr=20+ a048-51 Mrk79 300 9:09 11 snr=23 Mirror looks ok a052-55 Mrk704 400 1.30 9:35 10 snr=23 a056-59 PG0953+414 400 1.13 10:06 11 snr=22 a060-62 PG0923+129 400 1.21 10:39 11 snr=25 a063-65 NGC3516 300 1.25 11:08 12 snr=60+ a066-68 PG1100+772 600 1.28 11:27 13 snr=25 a069-71 NGC4151 100 1.17 12:03 12 snr=70 a072-74 Feige34 60 1.02 12:11 12 std a075-77 NGC3227 300 1.09 12:19 12 snr=40+ a078-82 Mrk817 300 1.42 12:40 12 snr=45 twilight mirror appeared frost free all night