Examples and Plots

Bias Images

The following example shows a overscan, trimmed, combined bias of 25 Biases taken with the optimal conditions described in the Calibration Details table above using the 25Bias_Bias_Bino.ob. A single line plot through the bias image is also presented. The line plot orients the chips in the order from left to right: 3, 2, 1, 4. Chip1 has several bad columns.

LBCB 25 Bias Combined Example Stats

Chip	Mean	Stddev	Min	Max
1	3.416	115.3	-355.1	65180
2	-0.406	3.933	-10.38	180.5
3	1.035	6.961	-9.058	14093
4	1.600	4.337	-8.493	1747

LBCB 10 Bias Combined Example Stats

Chip	Mean	Stddev	Min	Max
1	5.349	182.4	-378.3	65157
2	-0.658	4.145	-13.87	499.5
3	0.961	12.089	-68.79	29424
4	1.346	4.488	-12.22	1812

LBCR 25 Bias Combined Example Stats

Chip	Mean	Stddev	Min	Max
1	-1.197	1.313	-8.022	10.49
2	-1.326	1.292	-7.970	8.168
3	-1.893	1.435	-8.349	7.557
4	-1.561	1.160	-7.297	5.136

LBCR 10 Bias Combined Example Stats

Chip	Mean	Stddev	Min	Max
1	-0.972	1.902	-10.86	13.97
2	-0.909	1.787	-10.69	10.23
3	-2.982	1.881	-12.06	8.244
4	-1.142	1.699	-9.86	8.521

Sky Flat Examples

The following sections show examples of skyflats taken throughout recent semesters with each of the filters for LBC Blue and LBC Red. A single line plot through the bias image is also presented. The line plot orients the chips in the order from left to right: 3, 2, 1, 4.

LBC Blue Sky Flat Examples