Frame	Plate	Cart	sec z	seeing	Nreads	Dither	Zero	Zeronorm	sky continuum	S/N	S/N(c)	unplugged	faint
18720057	8921	2	1.23	1.63	94	0.00	19.70	14.76	[15.37,15.02,15.18]	[ 24.9, 33.5, 40.3]	[ 23.7, 29.5, 47.1]	198	299 267 263 247 245 218 110 69 57
18720058	8921	2	1.24	1.75	94	-0.51	19.77	14.83	[15.65,15.30,15.27]	[ 25.0, 34.4, 40.9]	[ 24.5, 30.3, 48.5]	198	299 267 263 252 247 218 110 92 69 57