01/16/2021 Civil 
Brotherton @ longslit (remote)
Outside Temp(F) -- 19 (Start) 
Outside Humidity(%RH) -- 78 (Start)
Wind Speed(MPH) -- 27 mph (Start)
Wind Direction -- 284 (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= 13.2 pix (0.38 arcsec per pixel) or 5 arcsec  

Centered for field, collimation numbers
at Dec 28   HA 03:00
0:00:06.3   -1:01:57.0

Fill LN2 #2 (17:48)

Flat at fixed -6.25 48, dome 15

Index	 	Object		EXP	secz	UT	T-Out 	Notes
------------------------------------------------------------------------------
mirror is good

hose #1 is disconnected, use #2 until further notice.

a001-10		Flat		3		01:10	19	looks ok

a011-20		CuAr		2		01:16	20	@-90C

a021-30		Bias		0		01:19	20	@-117C

a031-33		BD28d4211	60	1.65	01:30	20	std

a034-36		NGC7469		200	1.69	01:37	19	snr=22+

a037-38		SDSSJ0155	900	1.58	01:53	20	snr=8
Maybe can also add file a031 from previous night, 20210115, and get ok spec?

a039-42		NGC985		300	1.60	2:45	20	snr=15

a043-45		2MASSJ0414	400	1.53	3:10	20	snr=20+

a046-48		Mrk618		300	1.61	3:35	19	snr=15

a049 -- Mrk618 with heavy clouds...waiting for clds to clear...

a050-52		G191B2B		60	1.02	4:15	19	std
clouds and bad seeing...

Closing 9:20pm for clouds.  Will try later, forecasts not too promising.