CFHTLS Validated Exposures Statistics

Last update: Tue Feb 3 11:13:25 HST 2009

Global statistics since the official start (*) of the survey on May 30th 2003 UT
(May 29th PM HST, odometer number >= 703900).
The global statistics include the 40 sec. overhead time per exposure
following QSO time accounting rules (blue framed table).

* moment when the integration time spent on the CFHTLS started to be accounted for
as the instrumental configuration became stable (improved image quality, guiding, full mosaic)

Survey Component : Deep Wide Very Wide Pre-Survey
Total integration [validated exp.]: 1186.5 hr 934.0 hr 252.8 hr 52.9 hr
Number of validated exposures: 10358 6046 5431 865
Current fraction of CFHTLS : 50.0 % 39.4 % 10.7 % n/a
Target fraction of CFHTLS : 44.0 % 34.0 % 22.0 % n/a

Note: the Pre-Survey is included in the Wide component for the computation of these global ratios.


Deep Survey

Filter
Target Ratio (%)

Deep D1 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
24.4 = 660 x 1330.94 0.93 0.66 1.25 0.141.150.3996
30.6 = 225 x 4890.87 0.87 0.55 1.36 0.151.172.0382
58.8 = 300 x 7060.79 0.81 0.48 1.32 0.161.193.1678
109.5 = 520 x 7570.73 0.76 0.40 1.56 0.171.205.2580
67.0 = 360 x 6690.76 0.78 0.46 1.72 0.171.205.9184

Deep D2 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
1.5 = 660 x 80.81 0.82 0.74 1.06 0.091.070.2887
26.2 = 225 x 4200.88 0.90 0.55 1.63 0.191.151.9779
46.6 = 300 x 5590.79 0.83 0.47 1.51 0.191.152.7978
104.3 = 520 x 7210.74 0.79 0.43 1.79 0.211.194.7877
50.7 = 360 x 5070.75 0.79 0.43 1.54 0.201.155.2374

Deep D3 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
24.8 = 660 x 1350.92 0.93 0.70 1.29 0.111.240.3282
29.3 = 225 x 4690.88 0.90 0.53 1.40 0.171.281.5771
51.8 = 300 x 6220.80 0.82 0.47 1.31 0.161.282.3173
117.2 = 520 x 8110.77 0.80 0.43 1.42 0.191.284.4378
62.5 = 360 x 6250.75 0.76 0.41 1.49 0.181.296.3269

Deep D4 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
25.3 = 660 x 1380.96 0.94 0.62 1.28 0.111.280.4491
30.5 = 225 x 4880.88 0.90 0.53 1.35 0.141.322.3780
55.1 = 300 x 6610.79 0.81 0.49 1.46 0.151.323.4276
99.9 = 520 x 6910.75 0.79 0.44 1.68 0.181.346.0370
60.1 = 360 x 6010.75 0.76 0.44 1.41 0.151.327.0881


Wide Survey

Filter
Target Ratio (%)

Wide W1 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
63.7 = 600 x 3810.88 0.89 0.59 1.25 0.131.160.3478
53.6 = 500 x 3860.82 0.82 0.58 1.32 0.121.201.8866
59.6 = 180 x 11910.76 0.77 0.46 1.28 0.131.204.1380
99.0 = 615 x 5790.69 0.70 0.44 1.12 0.131.215.5374
83.0 = 600 x 4970.74 0.75 0.44 1.29 0.151.226.0984

Wide W2 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
21.3 = 600 x 1280.95 0.95 0.71 1.32 0.131.120.2995
23.1 = 500 x 1660.84 0.83 0.53 1.10 0.101.211.7683
26.1 = 180 x 5220.80 0.79 0.46 1.20 0.141.224.7295
42.9 = 615 x 2510.67 0.67 0.46 0.99 0.101.175.1290
26.2 = 600 x 1570.75 0.76 0.44 1.08 0.111.175.4696

Wide W3 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
42.7 = 600 x 2560.90 0.90 0.63 1.24 0.131.230.3394
34.7 = 500 x 2500.86 0.86 0.60 1.25 0.111.281.6886
40.9 = 180 x 8170.82 0.83 0.53 1.40 0.131.324.3482
72.0 = 615 x 4210.71 0.71 0.48 1.16 0.121.276.1581
51.2 = 600 x 3070.70 0.72 0.49 1.14 0.121.315.8376

Wide W4 Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
21.5 = 600 x 1290.89 0.88 0.59 1.30 0.131.100.3096
20.4 = 500 x 1470.80 0.80 0.55 1.02 0.091.201.8093
20.9 = 180 x 4170.69 0.70 0.42 1.18 0.151.263.6394
36.0 = 615 x 2110.64 0.65 0.43 0.96 0.111.205.2289
28.2 = 600 x 1690.69 0.69 0.44 1.02 0.121.216.2388


Very Wide Survey

All Fields Ratio (%) Itime(hr) = itime(sec) x Nexp Med Avg Min Max Dsp A. Bkg. Ph.
46.7 = 90 x 18660.88 0.90 0.50 2.01 0.161.242.6190
75.4 = 110 x 24660.79 0.80 0.45 1.47 0.161.253.4789
70.4 = 180 x 14080.76 0.80 0.38 1.76 0.201.296.0989