This file contains extinction data as determined by the CARLSBERG MERIDIAN TELESCOPE (CMT) on the island of La Palma in the Canary Islands. The nightly values are derived from CCD frames in the SDSS r' band. Each frame contains an average of 30 - 40 photometric standard stars. Explanation of data columns: (1) Evening date ie. date before midnight. (2) Version number of data. If 0, then unchecked. (3) Extinction in r'. This is the median value of the extinction from all photometric frames. : indicates an uncertain value due to the night probably not being photometric. (4) Standard error on (3) = Scatter/sqrt(N_frames) (5) Scatter (robust estimate of the Gaussian sigma based on percentiles of the distribution). If this value is high (0.060), then the night was probably not photometric. (6) Number of photometric frames (7) Number of hours of photometric data taken. (8) Number of hours of non-photometric data taken. (9) Comment Evening Ext Error Scat Nf Phot Non-Phot Comment Date r' (1) (2) (3) (4) (5) (6) (7) (8) (9) 130101 0 0.00 0.00 130102 2 2.87 8.61 130103 0 0.107: 0.031 0.099 10 11.00 0.42 130104 0 0.088 0.005 0.016 9 11.19 0.28 130105 0 0.084 0.002 0.005 10 11.44 0.00 130106 0 0.103 0.009 0.027 10 11.03 0.36 130107 1 0.28 11.09 130108 0 0.083 0.002 0.007 9 11.47 0.00 130109 0 0.082 0.003 0.009 9 11.48 0.00 130110 0 0.081 0.003 0.009 9 11.46 0.00 130111 0 0.087: 0.015 0.033 5 3.50 7.93 130112 0 0.00 0.00 130113 0 0.082 0.004 0.012 9 11.44 0.00 130114 0 0.104: 0.030 0.067 5 7.94 3.32 130115 0 0.129 0.014 0.036 7 11.50 0.00 130116 0 0.124 0.011 0.024 5 8.24 3.26 130117 0 0.110 0.008 0.022 7 11.49 0.00 130118 0 0.108 0.009 0.027 9 11.28 0.00 130119 0 0.088 0.003 0.010 9 11.23 0.00 130120 0 0.093 0.005 0.013 8 8.19 0.09 130121 0 0.00 0.03 130122 0 0.00 0.03 130123 0 0.00 0.00 130124 0 0.098 0.005 0.011 6 11.42 0.00 130125 0 0.080: 0.009 0.016 3 5.04 5.73 130126 0 0.00 0.03 130127 0 0.076 0.006 0.015 7 11.33 0.00 130128 0 0.081 0.006 0.016 7 11.29 0.00 130129 0 0.086 0.004 0.011 8 10.91 0.00 130130 0 0.078 0.002 0.006 7 11.26 0.00 130131 0 0.070 0.004 0.010 7 11.24 0.00 130201 0 0.082 0.005 0.014 9 11.09 0.00 130202 0 0.083 0.004 0.012 8 11.16 0.00 130203 0 0.095 0.009 0.024 7 11.18 0.00 130204 2 3.01 8.19 130205 0 0.00 11.16 130206 2 5.62 3.07 130207 0 0.114 0.009 0.016 3 8.07 0.14 130208 0 0.073 0.004 0.007 3 8.42 0.06 130209 0 0.075 0.006 0.010 3 8.39 0.06 130210 0 0.074 0.008 0.014 3 8.37 0.06 130211 0 0.077 0.008 0.017 5 11.10 0.00 130212 0 0.00 0.00 130213 0 0.080 0.006 0.012 4 8.21 0.00 130214 0 0.078 0.006 0.012 4 11.08 0.00 130215 0 0.102 0.014 0.032 5 10.50 0.00 130216 2 5.57 2.66 130217 0 0.153: 0.067 0.116 3 6.86 2.64 130218 0 0.00 0.00 130219 2 2.75 0.00 130220 0 0.075 0.011 0.028 6 10.83 0.00 130221 0 0.081 0.005 0.013 6 10.23 0.00 130222 0 0.083 0.006 0.014 5 10.07 0.00 130223 0 0.079 0.011 0.028 6 10.75 0.00 130224 0 0.074 0.006 0.014 5 10.78 0.00 130225 2 4.12 1.10 130226 0 0.00 0.03 130227 1 2.22 1.75 130228 0 0.00 10.21 130301 0 0.00 0.03 130302 0 0.00 2.98 130303 0 0.00 0.00 130304 0 0.00 0.00 130305 0 0.00 0.00 130306 0 0.00 0.00 130307 0 0.00 0.00 130308 0 0.00 4.33 130309 0 0.00 10.42 130310 0 0.132 0.020 0.046 5 9.25 1.14 130311 0 0.113 0.003 0.005 3 6.65 3.70 130312 1 2.17 8.15 130313 0 0.00 10.38 130314 0 0.00 10.36 130315 0 0.00 4.92 130316 0 0.00 0.00 130317 0 0.192: 0.028 0.039 2 5.14 5.11 130318 2 0.88 0.61 130319 0 0.110 0.007 0.015 5 10.13 0.00 130320 0 0.104 0.010 0.020 4 7.82 2.30 130321 1 0.28 0.20 130322 0 0.102 0.006 0.013 5 10.00 0.00 130323 0 0.201: 0.060 0.085 2 3.47 6.50 130324 0 0.128 0.012 0.031 7 9.69 0.00 130325 0 0.100 0.010 0.019 4 9.97 0.00 130326 0 0.00 0.00 130327 0 0.098 0.012 0.021 3 5.59 4.28 130328 0 0.101 0.005 0.010 4 9.88 0.00 130329 0 0.093 0.007 0.017 6 9.76 0.00 130330 0 0.093 0.009 0.020 5 9.78 0.00 130331 0 0.090 0.009 0.017 4 9.80 0.00 130401 0 0.094 0.005 0.010 5 9.61 0.00 130402 0 0.00 0.00 130403 0 0.00 0.00 130404 0 0.00 0.00 130405 0 0.093 0.012 0.028 5 9.59 0.00 130406 0 0.096 0.012 0.026 5 9.44 0.00 130407 0 0.125 0.007 0.016 6 7.52 0.38 130408 0 0.113 0.005 0.011 5 9.50 0.00 130409 0 0.103 0.007 0.015 4 7.06 2.41 130410 0 0.119 0.022 0.049 5 9.27 0.01 130411 0 0.184: 0.089 0.126 2 2.96 6.45 130412 0 0.110 0.004 0.010 5 9.38 0.00 130413 0 0.103 0.007 0.016 6 9.30 0.00 130414 0 0.093 0.009 0.022 6 9.26 0.00 130415 0 0.131 0.013 0.031 6 9.21 0.00 130416 0 0.078 0.013 0.028 5 6.85 2.36 130417 0 0.082 0.005 0.013 6 9.17 0.00 130418 0 0.157 0.013 0.034 7 9.09 0.00 130419 2 1.23 6.81 130420 1 2.00 7.08 130421 0 0.234: 0.005 0.010 3 2.03 6.99 130422 1 1.66 7.36 130423 0 0.173: 0.013 0.026 4 2.42 6.67 130424 0 0.174 0.017 0.042 6 4.99 3.77 130425 0 0.159 0.008 0.021 7 7.27 1.57 130426 0 0.00 6.94 130427 0 0.113 0.013 0.027 4 4.93 3.18 130428 0 0.115 0.006 0.015 7 8.29 0.00 130429 0 0.127: 0.002 0.002 2 4.10 0.00 130430 0 0.130 0.007 0.013 4 4.94 0.52 130501 0 0.102 0.007 0.018 7 8.73 0.00 130502 0 0.106 0.006 0.016 7 8.70 0.00 130503 0 0.132 0.012 0.033 8 8.62 0.00 130504 0 0.107 0.008 0.019 6 2.19 0.02 130505 0 0.141: 0.023 0.062 7 6.47 2.10 130506 1 0.39 8.14 130507 0 0.185: 0.041 0.082 4 3.00 5.52 130508 0 0.117: 0.005 0.010 4 1.74 6.80 130509 0 0.00 8.32 130510 0 0.00 7.99 130511 0 0.206: 0.044 0.087 4 4.10 4.36 130512 0 0.00 7.96 130513 0 0.104 0.015 0.032 5 4.22 4.19 130514 2 4.13 1.86 130515 0 0.106 0.006 0.016 7 8.36 0.00 130516 0 0.101 0.006 0.014 6 5.99 0.03 130517 0 0.109 0.004 0.012 8 8.15 0.00 130518 0 0.114 0.017 0.038 5 6.62 1.62 130519 0 0.096 0.004 0.008 5 4.69 3.56 130520 0 0.095 0.006 0.016 7 8.22 0.00 130521 0 0.115 0.006 0.017 8 8.16 0.00 130522 0 0.098 0.010 0.026 7 8.18 0.00 130523 0 0.104 0.005 0.012 7 8.20 0.00 130524 0 0.114 0.005 0.014 7 7.83 0.28 130525 0 0.101 0.006 0.014 5 8.24 0.00 130526 0 0.106 0.003 0.006 4 8.02 0.00 130527 0 0.107 0.008 0.019 6 8.18 0.00 130528 0 0.102 0.005 0.011 5 8.18 0.00 130529 0 0.00 0.00 130530 0 0.101 0.006 0.013 5 7.82 0.28 130531 0 0.099 0.007 0.016 5 7.81 0.28 130601 0 0.101 0.004 0.009 6 15.74 0.60 130602 0 0.098 0.004 0.007 3 7.79 0.37 130603 0 0.106 0.003 0.005 3 7.66 0.43 130604 1 2.76 5.37 130605 0 0.101 0.010 0.020 4 8.13 0.00 130606 0 0.095 0.009 0.018 4 8.11 0.00 130607 0 0.096 0.009 0.019 4 8.10 0.00 130608 0 0.098 0.009 0.018 4 8.08 0.00 130609 0 0.108 0.004 0.009 5 7.92 0.00 130610 0 0.102 0.007 0.015 5 8.02 0.00 130611 0 0.100 0.011 0.024 5 7.96 0.00 130612 0 0.142 0.022 0.050 5 7.95 0.00 130613 0 0.100 0.010 0.023 5 7.70 0.00 130614 0 0.00 0.00 130615 0 0.00 0.00 130616 0 0.00 0.00 130617 0 0.00 0.00 130618 0 0.00 0.00 130619 0 0.00 0.00 130620 0 0.00 0.00 130621 0 0.00 0.00 130622 0 0.00 0.00 130623 0 0.00 0.00 130624 0 0.00 0.00 130625 0 0.00 0.00 130626 0 0.00 0.00 130627 0 0.00 0.00 130628 0 0.00 0.00 130629 0 0.00 0.00 130630 0 0.00 0.00 130701 0 0.00 0.00 130702 0 0.00 0.00 130703 0 0.195 0.021 0.037 3 8.15 0.00 130704 0 0.097 0.005 0.013 7 7.85 0.00 130705 0 0.099 0.005 0.011 6 7.82 0.02 130706 0 0.107 0.004 0.010 6 8.02 0.00 130707 0 0.100 0.003 0.010 8 7.93 0.00 130708 0 0.103 0.005 0.014 8 7.94 0.00 130709 0 0.231 0.014 0.039 8 7.97 0.00 130710 0 0.287 0.010 0.025 6 7.90 0.00 130711 0 0.309 0.014 0.035 6 8.09 0.00 130712 0 0.261 0.009 0.022 6 8.01 0.00 130713 0 0.236 0.008 0.019 6 8.13 0.00 130714 0 0.211 0.003 0.006 5 7.87 0.28 130715 0 0.169 0.006 0.014 5 7.89 0.28 130716 0 0.149 0.007 0.017 6 7.77 0.28 130717 0 0.296 0.002 0.005 5 7.52 0.62 130718 0 0.00 0.00 130719 0 0.105 0.008 0.019 6 8.25 0.00 130720 0 0.124 0.007 0.015 5 8.31 0.00 130721 0 0.113 0.007 0.018 6 8.30 0.00 130722 0 0.136 0.014 0.038 7 8.26 0.00 130723 0 0.155 0.004 0.009 5 7.64 0.69 130724 0 0.114 0.008 0.019 6 8.35 0.00 130725 0 0.116 0.004 0.011 6 8.38 0.00 130726 0 0.120 0.005 0.012 5 8.44 0.00 130727 0 0.217 0.004 0.011 8 8.32 0.00 130728 0 0.255 0.008 0.019 6 8.44 0.00 130729 0 0.148 0.014 0.032 5 8.40 0.00 130730 0 0.114 0.007 0.017 5 8.55 0.00 130731 0 0.126 0.007 0.016 5 8.57 0.00 130801 0 0.699: 0.074 0.166 5 8.61 0.00 130802 0 0.750 0.023 0.052 5 8.62 0.00 130803 0 0.455: 0.030 0.066 5 8.64 0.00 130804 0 0.414 0.012 0.025 4 8.74 0.00 130805 0 0.335 0.014 0.028 4 8.76 0.00 130806 0 0.268 0.005 0.011 4 8.77 0.00 130807 0 0.249 0.006 0.011 3 6.05 2.76 130808 0 0.251 0.009 0.017 4 8.84 0.00 130809 0 0.193 0.010 0.022 5 8.72 0.00 130810 0 0.281 0.021 0.042 4 8.90 0.00 130811 0 0.215 0.014 0.028 4 8.93 0.00 130812 0 0.00 8.94 130813 2 3.39 5.53 130814 2 5.28 3.73 130815 0 0.207 0.005 0.010 4 9.03 0.00 130816 0 0.304 0.024 0.049 4 9.06 0.00 130817 0 0.179 0.005 0.013 7 7.48 0.00 130818 0 0.135 0.006 0.015 6 8.91 0.00 130819 0 0.254 0.005 0.008 3 7.13 2.02 130820 1 1.55 5.97 130821 0 0.00 9.19 130822 0 0.00 9.15 130823 1 2.69 6.51 130824 0 0.273 0.020 0.044 5 9.24 0.00 130825 0 0.179 0.012 0.032 7 9.05 0.00 130826 0 0.00 0.00 130827 0 0.153 0.013 0.026 4 9.40 0.00 130828 0 0.152 0.007 0.016 5 9.37 0.00 130829 0 0.140 0.005 0.009 3 6.75 0.00 130830 0 0.00 0.00 130831 0 0.00 0.00 130901 0 0.00 0.00