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Table 1

Reanalysed and new white-dwarf mid-eclipse times of DP Leo.

Cycle No. BJD(TT) Error Residuals (s)
E 2 400 000+ (days) (s) linear eccentric
(a) Calar Alto 3.5-m, Optima white-light photometry, reanalysed
56 307 52 284.678997 0.000011 0.95 –  −0.05
56 308 52 284.741363 0.000017 1.44 – 0.22
(b) MONET/North 1.2-m, white-light photometry
98 482 54 914.832280 0.000012 1.04  −1.04  −1.01
98 483 54 914.894663 0.000014 1.21 0.70 0.73
98 514 54 916.827926 0.000017 1.47 1.95 1.97
98 560 54 919.696603 0.000017 1.47 0.71 0.73
98 577 54 920.756784 0.000016 1.38 1.78 1.80
98 607 54 922.627668 0.000016 1.38 1.63 1.65
98 608 54 922.690017 0.000010 0.86 0.43 0.46
98 609 54 922.752365 0.000010 0.86  −0.85  −0.83
98 610 54 922.814727 0.000011 0.95  −0.92  −0.91
98 850 54 937.781831 0.000016 1.38 0.67 0.67
98 851 54 937.844195 0.000012 1.04 0.77 0.77
98 865 54 938.717285 0.000015 1.30 1.63 1.63
98 866 54 938.779611 0.000010 0.86  −1.55  −1.55
98 896 54 940.650507 0.000027 2.33  −0.66  −0.66
98 897 54 940.712869 0.000011 0.95  −0.73  −0.73
98 898 54 940.775243 0.000028 2.42 0.23 0.22
98 899 54 940.837637 0.000024 2.07 2.92 2.92
98 914 54 941.773045 0.000014 1.21  −0.09  −0.10
98 915 54 941.835408 0.000025 2.16  −0.08  −0.08
98 928 54 942.646122 0.000011 0.95  −0.35  −0.35
98 930 54 942.770852 0.000012 1.04 0.03 0.02
98 931 54 942.833221 0.000012 1.04 0.55 0.55
98 932 54 942.895591 0.000032 2.76 1.17 1.17
98 945 54 943.706304 0.000010 0.86 0.81 0.81
98 946 54 943.768653 0.000012 1.04  −0.38  −0.39
98 947 54 943.831008 0.000017 1.47  −1.06  −1.07
99 377 54 970.647033 0.000041 3.54  −1.35  −1.37
99 378 54 970.709414 0.000042 3.63 0.22 0.19
99 746 54 993.658926 0.000015 1.30  −1.43  −1.49
99 826 54 998.647982 0.000023 1.99 0.93 0.89
99 938 55 005.632601 0.000026 2.25  −0.87  −0.92
102 028 55 135.970976 0.000023 1.99  −0.44  −0.51
102 364 55 156.924900 0.000023 1.99  −0.08  −0.13
102 365 55 156.987244 0.000020 1.73  −1.71  −1.76
102 380 55 157.922708 0.000028 2.42 0.12 0.07
102 397 55 158.982865 0.000024 2.07  −0.88  −0.93
102 428 55 160.916107 0.000018 1.56  −1.44  −1.49
102 429 55 160.978466 0.000016 1.38  −1.78  −1.83
102 444 55 161.913906 0.000022 1.90  −2.02  −2.07
102 445 55 161.976285 0.000027 2.33  −0.63  −0.68
102 460 55 162.911738 0.000033 2.85 0.25 0.20
103 150 55 205.942102 0.000014 1.21  −0.35  −0.37
103 151 55 206.004463 0.000014 1.21  −0.52  −0.53
103 166 55 206.939920 0.000012 1.04 0.71 0.69
103 167 55 207.002308 0.000015 1.30 2.88 2.87
103 197 55 208.873171 0.000016 1.38 0.92 0.91
103 213 55 209.870977 0.000009 0.78 0.94 0.93
103 214 55 209.933305 0.000018 1.56  −2.06  −2.08
103 215 55 209.995687 0.000014 1.21  −0.41  −0.42
103 263 55 212.989111 0.000019 1.64 0.18 0.17
103 775 55 244.918892 0.000010 0.86 0.05 0.08
103 776 55 244.981257 0.000018 1.56 0.23 0.27
103 808 55 246.976864 0.000015 1.30  −0.15  −0.11
(c) McDonald 2.1-m, photometry with BG 40 filter
106 096 55 389.664062 0.000022 1.90  −0.20 0.10

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