01/04/2021 Civil Zastrocky & McLane @ longslit (remote) Outside Temp(F) -- 27 (Start) Outside Humidity(%RH) -- 36 (Start) Wind Speed(MPH) -- 24 mph (Start) Wind Direction -- 227 (Start) Slit width 5 arcsec, set on September 17, 2020 empirically 900l/mm grating, sub-array center column 1050, width 360 Longslit focus set to 310 on instrument. Seeing= 7.6 pix (0.38 arcsec per pixel) or 2.9 arcsec focus (temp 28C) Centered for field, collimation numbers at Dec 29:25 HA 0:06 0:00:50.9 -1:04:58.0 Fill LN2 #1 (17:05) Flat at fixed -6.25 48, dome 15 Index Object EXP secz UT T-Out Notes ------------------------------------------------------------------------------ a001-10 CuAr 2 00:38 28 @-95C a011-20 Bias 0 00:41 28 @-119C a021-30 Flat 3 00:45 28 Lamp @95% a031-33 G191B2B 60 1.38 00:55 27 Std weird shape? No ice on mirror though... a034-36 Mrk975 400 1.13 01:07 27 SNR=20 ice on instrument a037 Flat 3 03:42 26 @-139C to check ice on instrument a038-40 G191B2B 60 1.05 03:50 26 Std still ice on instrument a041-43 G191B2B 60 1.02 05:06 27 Std better...but still ice on instrument a044 Flat 3 05:12 28 @-139C Maybe the ice is gone? opening a045-47 IRAS05480+5927 200 1.06 05:27 27 SNR=45 a048-50 Mrk6 500 1.21 05:51 28 SNR=35 a051-53 Mrk79 300 1.05 06:20 28 SNR=40 a054-56 Feige 34 60 1.41 06:38 27 Std a057-60 NGC2617 600 1.62 06:48 26 SNR=17 a061-67 SDSS1004 900 1.34 07:39 28 SNR=15 Clouds, low SNR a061-63 a068-70 NGC3227 300 1.09 09:47 26 SNR=45 a071-73 Mrk 817 500 1.38 10:17 26 SNR=45