Table 2: New times of minimum light of TW Dra.
JDhel Epoch O-C Min. Filter Observer
-2400000   [days] type    
20 977.6908 -10937.0 0.7568 p pg Bak
48 456.0539 -1147.0 0.0006 p VT Hip
48 464.4761 -1144.0 0.0023 p Hp Hip
48 481.3160 -1138.0 0.0010 p BT Hip
53 595.4080 684.0 0.0016 p BVRI MC, GS
53 609.4421 689.0 0.0014 p VRI MZ
53 943.4545 808.0 -0.0021 p VRI MZ
53 957.4872 813.0 -0.0019 p B PS
53 985.5578 823.0 -0.0022 p B PS
53 988.3636 824.0 -0.0023 p B PS
53 988.3642 824.0 -0.0021 p VRI MZ
53 999.5931 828.0 -0.0016 p B PS
54 002.3979 829.0 -0.0027 p B PS
54 002.3986 829.0 -0.0020 p VRI MZ
54 026.2572 837.5 -0.0016 s I PS
54 096.4335 862.5 0.0033 s I PS
54 190.4574 896.0 -0.0025 p R LB
54 190.4569 896.0 -0.0030 p B PS
54 197.4690 898.5 -0.0081 s I PS
Notes: Hip = new timing of minima determined using Hipparcos and Tycho, datasets.
Bak = new timing of minima obtained from photographic observations Baker (1921).
Observers: LB = L. Brát, MC = M. Chrastina, PS = P. Svoboda, GS = G. Szász, MZ = M. Zejda.

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