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) 100101 1 0.075 0.003 0.009 7 6.93 1.63 100102 1 0.23 2.00 100103 1 0.092 0.007 0.015 5 3.44 0.00 100104 1 0.103 0.005 0.017 10 6.53 0.00 100105 1 0.114 0.005 0.009 3 4.44 0.00 100106 0 0.00 0.00 100107 1 0.083 0.006 0.021 14 10.51 0.00 100108 0 0.00 0.00 100109 0 0.00 0.00 100110 1 0.089 0.005 0.016 12 11.36 0.00 100111 1 0.095 0.016 0.048 9 8.79 2.59 100112 1 0.107: 0.030 0.080 7 8.09 3.33 100113 0 0.00 0.00 100114 1 0.097: 0.008 0.019 6 5.22 6.09 100115 1 0.083 0.002 0.007 12 11.25 0.00 100116 1 0.086 0.002 0.006 15 8.05 1.29 100117 1 0.155 0.005 0.017 13 8.99 2.04 100118 1 0.107: 0.013 0.038 9 5.12 5.92 100119 1 0.084 0.003 0.013 16 10.97 0.00 100120 1 0.083 0.002 0.006 15 10.64 0.33 100121 1 0.090 0.003 0.010 11 5.89 5.07 100122 1 0.101 0.003 0.011 12 5.50 1.40 100123 1 0.082 0.002 0.008 19 10.75 0.00 100124 1 0.084 0.002 0.010 21 10.40 0.00 100125 1 0.086 0.002 0.011 20 10.57 0.00 100126 1 0.078 0.007 0.016 5 3.26 0.85 100127 2 0.77 9.96 100128 0 0.00 6.95 100129 0 0.00 0.00 100130 0 0.00 0.00 100131 0 0.00 0.00 100201 0 0.00 0.00 100202 0 0.00 0.00 100203 0 0.00 0.00 100204 0 0.00 0.00 100205 1 0.077 0.002 0.008 14 10.75 0.00 100206 1 0.128 0.021 0.052 6 7.31 3.53 100207 0 0.00 0.00 100208 1 0.085 0.005 0.014 9 10.13 0.72 100209 1 0.096 0.011 0.040 13 11.17 0.72 100210 2 1.50 9.30 100211 0 0.00 10.76 100212 1 0.103: 0.016 0.032 4 4.70 4.92 100213 1 0.32 2.96 100214 0 0.00 0.00 100215 0 0.00 0.00 100216 0 0.00 0.00 100217 0 0.00 0.00 100218 0 0.00 0.00 100219 0 0.00 0.00 100220 0 0.00 0.00 100221 0 0.00 0.00 100222 0 0.00 0.00 100223 1 0.56 8.44 100224 1 0.095 0.005 0.014 8 6.37 0.82 100225 0 0.00 10.21 100226 0 0.00 0.00 100227 0 0.00 0.80 100228 1 0.093 0.003 0.008 7 5.54 0.80 100301 0 0.00 0.00 100302 1 2.02 0.36 100303 1 0.102 0.004 0.013 10 7.31 2.91 100304 0 0.00 0.00 100305 0 0.00 0.00 100306 0 0.00 0.54 100307 0 0.00 1.78 100308 1 0.092 0.009 0.030 11 6.04 3.94 100309 1 0.77 9.40 100310 1 0.087 0.005 0.012 6 4.01 0.00 100311 1 0.103 0.008 0.022 8 5.54 4.39 100312 1 0.175: 0.037 0.091 6 4.48 5.55 100313 1 0.082 0.002 0.008 13 9.88 0.00 100314 1 0.112 0.006 0.019 11 9.29 0.61 100315 1 0.66 3.63 100316 1 0.28 9.47 100317 2 1.27 8.45 100318 1 0.308: 0.027 0.046 3 1.00 7.89 100319 2 2.02 7.66 100320 0 0.00 0.00 100321 0 0.00 0.00 100322 0 0.00 0.00 100323 1 0.095 0.003 0.010 8 5.44 3.61 100324 1 0.107 0.003 0.011 14 9.47 0.00 100325 1 0.109 0.003 0.012 13 9.48 0.00 100326 1 0.106: 0.005 0.012 7 4.10 5.38 100327 1 0.175: 0.013 0.026 4 3.04 6.21 100328 0 0.00 9.36 100329 1 0.109 0.002 0.009 14 7.69 1.28 100330 1 0.103 0.002 0.007 11 7.92 1.14 100331 1 0.103 0.003 0.011 14 8.73 0.31 100401 1 0.170: 0.094 0.188 4 2.00 7.29 100402 1 0.432: 0.093 0.162 3 3.15 6.12 100403 1 0.221: 0.032 0.072 5 2.06 2.06 100404 1 0.102 0.006 0.020 11 9.03 0.00 100405 1 0.161: 0.030 0.102 12 7.30 1.36 100406 1 0.161: 0.005 0.009 3 3.01 6.15 100407 2 0.39 8.28 100408 0 0.00 8.97 100409 2 0.74 8.29 100410 1 0.098 0.007 0.025 12 8.50 0.53 100411 1 0.099 0.004 0.012 12 7.27 0.00 100412 0 0.00 0.00 100413 0 0.00 0.00 100414 0 0.00 0.00 100415 0 0.00 0.00 100416 0 0.00 0.00 100417 0 0.00 0.00 100418 0 0.00 0.00 100419 0 0.00 0.00 100420 0 0.00 0.00 100421 0 0.00 0.00 100422 0 0.00 0.00 100423 0 0.00 0.00 100424 0 0.00 0.00 100425 0 0.00 0.00 100426 0 0.00 0.00 100427 0 0.00 0.00 100428 1 0.144: 0.010 0.018 3 3.00 5.48 100429 1 0.91 7.75 100430 1 0.149: 0.034 0.101 9 6.25 2.25 100501 1 0.105 0.018 0.045 6 4.47 3.82 100502 1 0.092 0.004 0.015 17 7.97 0.00 100503 0 0.00 8.37 100504 1 0.236: 0.042 0.103 6 2.99 5.19 100505 1 0.109 0.010 0.030 10 5.72 2.45 100506 0 0.00 0.00 100507 0 0.00 0.00 100508 0 0.00 0.00 100509 0 0.00 0.00 100510 0 0.00 0.00 100511 0 0.00 0.00 100512 0 0.00 0.00 100513 0 0.00 0.00 100514 0 0.00 0.00 100515 0 0.00 0.00 100516 0 0.00 0.00 100517 0 0.00 0.00 100518 0 0.00 0.00 100519 0 0.00 0.00 100520 0 0.00 0.00 100521 0 0.00 0.00 100522 0 0.00 0.00 100523 0 0.00 0.00 100524 0 0.00 0.00 100525 0 0.00 0.00 100526 0 0.00 0.00 100527 0 0.00 0.00 100528 0 0.00 0.00 100529 0 0.00 0.00 100530 0 0.00 0.00 100531 0 0.00 0.00 100601 0 0.00 0.00 100602 0 0.00 0.00 100603 0 0.00 0.00 100604 0 0.00 0.00 100605 0 0.00 0.00 100606 0 0.00 0.00 100607 0 0.00 0.00 100608 0 0.00 0.00 100609 0 0.00 0.00 100610 0 0.00 0.00 100611 0 0.00 0.00 100612 0 0.00 0.00 100613 0 0.00 0.00 100614 0 0.00 0.00 100615 0 0.00 0.00 100616 0 0.00 0.00 100617 0 0.00 0.00 100618 0 0.00 0.00 100619 0 0.00 0.00 100620 0 0.00 0.00 100621 0 0.00 0.00 100622 0 0.00 0.00 100623 0 0.00 0.00 100624 0 0.00 0.00 100625 0 0.00 0.00 100626 0 0.00 0.00 100627 0 0.00 0.00 100628 0 0.00 0.00 100629 0 0.00 0.00 100630 0 0.00 0.00 100701 1 0.072 0.006 0.020 10 7.78 0.00 100702 1 0.069 0.007 0.022 10 7.11 0.49 100703 1 0.069 0.006 0.019 9 7.50 0.28 100704 1 0.072 0.005 0.016 9 7.16 0.60 100705 1 0.102 0.006 0.017 9 7.50 0.28 100706 1 0.088 0.007 0.023 10 6.98 0.63 100707 1 0.080 0.006 0.017 9 7.55 0.28 100708 1 0.428: 0.074 0.196 7 4.24 3.42 100709 1 0.862: 0.093 0.186 4 2.21 5.30 100710 1 0.291: 0.032 0.091 8 7.27 0.44 100711 1 0.226 0.012 0.032 7 5.40 2.37 100712 1 0.220 0.006 0.020 10 7.49 0.36 100713 1 0.090 0.006 0.022 12 7.51 0.00 100714 1 0.074 0.005 0.016 11 7.40 0.44 100715 1 0.073 0.005 0.016 11 7.27 0.44 100716 1 0.064 0.006 0.020 13 7.48 0.00 100717 1 0.089: 0.039 0.088 5 8.24 0.00 100718 1 0.379 0.008 0.016 4 6.57 1.67 100719 0 0.00 0.04 100720 0 0.00 0.04 100721 0 0.00 0.00 100722 0 0.00 0.00 100723 0 0.00 0.00 100724 0 0.00 0.00 100725 0 0.00 0.00 100726 1 0.079 0.004 0.008 5 8.08 0.30 100727 1 0.082 0.003 0.008 5 8.44 0.00 100728 1 1.40 7.07 100729 0 0.00 0.00 100730 0 0.00 0.00 100731 0 0.00 0.00 100801 0 0.00 0.00 100802 1 0.287 0.017 0.043 6 8.43 0.00 100803 1 0.446 0.021 0.046 5 7.22 1.36 100804 1 0.544 0.005 0.008 3 5.77 2.61 100805 1 0.341 0.008 0.019 5 7.88 0.75 100806 1 0.100 0.009 0.020 5 8.71 0.00 100807 1 0.087 0.005 0.012 6 8.27 0.35 100808 1 0.082 0.003 0.008 7 8.66 0.00 100809 1 0.129 0.008 0.020 6 6.35 2.33 100810 2 0.65 7.99 100811 1 2.43 6.25 100812 1 0.236 0.007 0.019 8 8.70 0.00 100813 1 0.120 0.007 0.023 10 5.63 0.46 100814 1 0.255 0.006 0.019 9 8.58 0.00 100815 1 0.250: 0.014 0.028 4 3.90 3.96 100816 1 0.271: 0.044 0.076 3 1.15 7.63 100817 1 0.098: 0.039 0.110 8 5.85 2.59 100818 1 0.091 0.005 0.013 8 8.54 0.29 100819 1 0.081 0.004 0.014 11 8.77 0.00 100820 1 0.086 0.005 0.015 11 8.77 0.00 100821 1 0.144 0.011 0.022 4 6.26 2.88 100822 1 0.117 0.003 0.006 5 6.46 2.59 100823 1 0.093 0.004 0.012 9 8.85 0.00 100824 1 0.147 0.012 0.030 6 5.85 3.18 100825 1 0.109 0.006 0.018 9 8.92 0.00 100826 1 0.45 8.57 100827 1 0.76 8.28 100828 1 0.305 0.005 0.013 7 5.69 1.32 100829 1 0.181 0.006 0.019 10 9.10 0.00 100830 1 0.203 0.002 0.007 9 9.19 0.00 100831 0 0.00 0.00 100901 0 0.00 0.00 100902 0 0.00 0.00 100903 1 0.131 0.009 0.028 10 9.12 0.00 100904 1 0.168 0.003 0.011 10 8.99 0.00 100905 1 1.98 7.40 100906 1 0.101 0.006 0.015 6 6.78 2.62 100907 1 0.104 0.003 0.009 10 9.24 0.00 100908 1 0.099 0.006 0.019 9 9.46 0.00 100909 0 0.00 0.00 100910 1 0.095 0.012 0.028 6 6.66 2.90 100911 1 0.094 0.004 0.010 6 6.22 3.38 100912 1 0.110 0.007 0.019 7 7.04 2.35 100913 1 0.43 4.89 100914 0 0.00 5.80 100915 0 0.00 0.00 100916 0 0.00 0.00 100917 0 0.00 0.00 100918 0 0.00 0.00 100919 1 0.097 0.013 0.031 6 9.22 0.51 100920 1 0.093 0.002 0.006 10 8.96 0.75 100921 0 0.00 6.67 100922 0 0.00 0.00 100923 0 0.00 1.18 100924 0 0.00 7.47 100925 0 0.00 0.38 100926 0 0.00 0.04 100927 0 0.00 10.08 100928 0 0.00 7.77 100929 1 0.090 0.003 0.010 9 6.51 0.76 100930 1 0.091 0.001 0.004 9 10.12 0.00 101001 1 0.091 0.011 0.032 9 10.14 0.00 101002 0 0.00 0.00 101003 1 0.157 0.009 0.022 6 5.14 5.11 101004 1 0.094 0.002 0.005 7 10.32 0.00 101005 1 0.092 0.004 0.010 8 8.85 0.00 101006 1 0.101 0.007 0.014 4 3.95 0.50 101007 2 1.52 0.00 101008 1 0.091 0.001 0.002 4 6.05 0.00 101009 1 0.115 0.012 0.035 8 10.41 0.00 101010 1 0.105: 0.010 0.020 4 2.29 2.88 101011 0 0.00 0.00 101012 1 0.28 1.44 101013 1 0.091 0.002 0.004 5 5.54 0.16 101014 1 0.087 0.005 0.014 8 4.70 0.00 101015 1 0.090 0.001 0.002 3 3.25 0.04 101016 1 0.090 0.001 0.005 10 10.33 0.00 101017 0 0.00 9.32 101018 1 0.133 0.005 0.010 5 3.17 1.70 101019 0 0.00 0.04 101020 1 0.156 0.011 0.021 4 3.86 0.43 101021 1 0.097 0.005 0.009 3 2.65 0.04 101022 1 0.102 0.016 0.044 8 6.29 1.82 101023 1 0.72 0.25 101024 1 0.085 0.002 0.005 7 7.55 0.27 101025 1 0.085 0.002 0.007 9 9.37 0.00 101026 1 0.095 0.003 0.009 9 10.37 0.38 101027 1 0.096 0.007 0.022 10 10.77 0.00 101028 1 0.095 0.004 0.012 9 10.84 0.00 101029 1 0.097 0.003 0.009 8 8.73 2.02 101030 1 0.091 0.002 0.004 4 6.06 0.75 101031 0 0.00 0.00 101101 0 0.00 0.00 101102 0 0.00 0.00 101103 0 0.00 0.00 101104 0 0.00 0.00 101105 0 0.00 0.00 101106 0 0.00 0.00 101107 0 0.00 0.00 101108 1 0.088 0.003 0.008 7 9.03 2.11 101109 1 0.090 0.003 0.008 8 11.17 0.00 101110 1 2.02 2.45 101111 0 0.00 0.00 101112 0 0.00 0.00 101113 0 0.00 0.00 101114 0 0.00 0.00 101115 0 0.00 0.00 101116 0 0.00 0.00 101117 0 0.00 0.00 101118 1 0.129 0.011 0.026 6 3.15 0.53 101119 1 0.231: 0.015 0.026 3 1.23 5.98 101120 0 0.00 11.19 101121 0 0.00 11.21 101122 1 0.093 0.002 0.004 5 7.28 4.12 101123 1 0.089 0.001 0.003 8 11.42 0.00 101124 2 2.98 3.18 101125 0 0.00 0.00 101126 0 0.00 0.00 101127 0 0.00 0.00 101128 0 0.00 0.00 101129 0 0.00 0.00 101130 0 0.00 0.00 101201 0 0.00 0.00 101202 0 0.00 0.00 101203 0 0.00 0.00 101204 0 0.00 0.00 101205 0 0.00 0.00 101206 0 0.00 0.00 101207 0 0.00 0.00 101208 0 0.00 0.00 101209 0 0.00 0.00 101210 0 0.00 0.00 101211 0 0.00 0.00 101212 0 0.00 0.00 101213 1 0.090 0.010 0.026 7 7.55 4.00 101214 2 1.48 2.39 101215 0 0.00 0.00 101216 0 0.00 0.00 101217 0 0.00 0.00 101218 0 0.00 0.00 101219 0 0.00 0.00 101220 0 0.00 0.00 101221 0 0.00 0.00 101222 0 0.00 0.00 101223 1 0.091 0.005 0.012 6 11.46 0.00 101224 0 0.00 0.00 101225 0 0.00 0.00 101226 0 0.00 0.00 101227 0 0.00 0.00 101228 0 0.00 0.00 101229 0 0.00 0.00 101230 0 0.00 0.00 101231 0 0.00 0.00