Table 3: Mean V Photometry of the M100 Cepheids RA DEC Period Vav Vph Chi^2 Period Vav Vph sigma ID (2000) (2000) DoP DoP DoP DoP DAO DAO DAO DAO Chip Comments C1 12:23:00.24 15:48:47.7 85.0 24.97 24.95 10.5 85.0 25.01 25.00 1.8 WF2 P>85d C2 12:23:01.73 15:50:12.5 76.3 25.19 25.15 13.9 56.0 25.29 25.26 1.4 WF4 P>57d C3 12:23:02.01 15:49:28.3 63.5 25.01 25.04 3.2 60.8 25.09 25.11 1.5 WF4 P>58.4d C4 12:23:03.32 15:50:25.4 53.1 25.16 25.22 13.9 55.0 25.16 25.22 1.5 WF4 P>48d C5 12:22:58.03 15:49:54.7 52.8 25.08 25.06 8.0 54.0 25.31 25.26 1.5 WF3 C6 12:23:00.67 15:48:12.6 52.0 25.12 25.20 16.6 52.0 25.16 25.23 1.9 WF2 46d42d C12 12:22:57.77 15:47:47.9 47.9 25.24 25.31 9.5 WF2 46d42d C15 12:23:04.61 15:49:45.7 44.0 25.39 25.46 25.2 43.5 25.35 25.42 2.6 WF4 C16 12:22:57.82 15:50:02.5 42.9 24.95 24.95 7.7 40.7 25.05 25.02 1.7 WF3 C17 12:22:59.73 15:48:50.3 42.9 24.97 25.00 5.2 40.5 25.01 25.04 1.5 WF2 C18 12:23:04.95 15:49:20.2 42.3 25.26 25.20 24.6 41.7 25.27 25.25 2.3 WF4 C19 12:22:57.70 15:48:02.3 41.7 25.71 25.75 5.1 31.0 25.87 25.89 1.4 WF2 P2_DAO=41.0d C20 12:23:03.03 15:48:55.6 41.6 26.26 26.18 1.5 WF4 C21 12:22:59.88 15:48:01.2 41.5 25.32 25.32 9.4 39.9 25.37 25.37 1.5 WF2 C22 12:23:03.41 15:48:41.8 41.5 25.49 25.50 2.2 PC1 C23 12:23:00.35 15:49:53.5 41.1 25.58 25.63 6.4 38.3 25.80 25.83 1.6 WF4 C24 12:22:59.85 15:48:28.3 36.4 26.00 25.89 6.1 WF2 C25 12:23:03.27 15:48:42.0 34.7 25.84 25.81 3.1 35.5 25.91 25.92 1.5 PC1 C26 12:23:02.99 15:48:59.8 34.1 25.67 25.62 1.8 WF2 C27 12:22:58.04 15:47:50.0 33.9 26.24 26.20 7.0 34.3 26.40 26.31 1.5 WF2 C28 12:23:03.12 15:50:21.1 33.1 25.59 25.62 2.0 WF4 C29 12:23:02.71 15:49:04.6 33.0 25.67 25.63 1.7 WF2 C30 12:23:01.70 15:48:36.3 32.4 26.17 26.09 1.9 WF2 C31 12:23:02.49 15:48:46.2 32.0 25.48 25.50 12.9 29.9 25.46 25.45 3.2 PC1 C32 12:23:03.42 15:50:11.6 31.7 26.06 26.09 11.4 30.1 26.17 26.19 2.3 WF4 C33 12:22:58.48 15:49:58.4 31.6 25.73 25.76 12.2 31.6 25.81 25.83 2.4 WF3 C34 12:23:02.68 15:48:55.4 30.4 26.25 26.26 1.9 WF4 C35 12:22:57.39 15:47:34.5 30.0 26.19 26.16 17.0 29.5 26.27 26.27 1.8 WF2 C36 12:23:01.33 15:48:26.9 29.7 25.39 25.40 5.0 WF2 C37 12:23:02.24 15:50:00.6 29.7 26.15 26.19 4.2 28.2 26.27 26.25 1.8 WF4 C38 12:22:59.33 15:47:49.8 28.8 25.39 25.36 6.8 WF2 C39 12:23:00.46 15:48:27.4 28.8 26.09 26.15 8.0 28.2 26.11 26.14 1.5 WF2 C40 12:23:01.03 15:48:15.7 28.2 26.08 26.14 4.7 29.6 26.08 26.10 1.5 WF2 C41 12:22:58.46 15:47:58.8 28.2 24.91 24.89 12.1 26.3 24.86 24.86 1.5 WF2 C42 12:23:01.45 15:49:58.4 26.5 25.81 25.86 21.0 25.7 25.77 25.80 2.5 WF4 C43 12:22:58.17 15:48:28.7 26.4 25.54 25.54 7.6 22.5 25.57 25.52 1.8 WF2 P2=26.9d, P3=19.5d C44 12:22:57.92 15:47:47.0 25.7 26.34 26.33 3.1 WF2 * C45 12:23:01.14 15:47:58.4 25.5 25.68 25.69 16.0 26.1 25.66 25.64 1.8 WF2 C46 12:23:04.37 15:49:45.9 25.3 25.33 25.35 27.7 26.6 25.36 25.38 1.5 WF4 C47 12:23:03.75 15:49:50.9 25.3 26.16 26.15 5.3 26.0 26.22 26.21 1.5 WF4 C48 12:23:03.43 15:49:50.9 25.1 25.97 25.95 11.1 24.3 25.86 25.84 1.8 WF4 C49 12:22:57.14 15:47:39.7 24.8 26.29 26.30 9.5 24.0 26.44 26.41 1.5 WF2 P2=30.6d C50 12:23:02.73 15:48:38.6 24.5 26.19 26.18 11.4 25.5 26.21 26.16 2.4 PC1 C51 12:23:00.40 15:50:01.8 24.0 25.92 26.05 21.8 23.9 25.96 26.11 2.6 WF4 C52 12:23:01.91 15:48:41.8 22.4 26.50 26.50 10.9 24.4 26.42 26.38 2.4 PC1 C53 12:23:02.64 15:48:44.4 21.8 26.52 26.57 3.8 21.9 26.46 26.51 1.5 PC1 C54 12:23:03.13 15:49:56.4 21.3 26.09 26.20 14.7 WF4 C55 12:23:02.39 15:48:59.8 21.0 26.50 26.52 4.7 24.0 26.53 26.54 1.5 PC1 C56 12:23:04.34 15:50:04.5 21.0 26.30 26.32 28.4 21.6 26.24 26.25 2.3 WF4 C57 12:22:59.85 15:47:51.4 20.2 26.50 26.43 3.4 WF2 C58 12:22:59.30 15:48:03.8 19.9 25.83 25.74 7.9 WF2 C59 12:23:01.05 15:48:01.8 19.0 25.49 25.40 15.1 19.0 25.51 25.42 1.6 WF2 P2_DAO=25.9d C60 12:23:01.44 15:49:57.6 18.8 26.21 26.17 4.1 15.5 26.08 26.11 1.5 WF4 P2_DAO=19.2d C61 12:23:01.42 15:48:44.4 18.4 26.19 26.24 1.7 WF3 C62 12:23:02.55 15:49:33.6 17.7 26.06 26.15 12.8 18.0 26.09 26.20 1.9 WF4 C63 12:23:03.67 15:50:25.6 17.6 26.05 26.13 6.6 17.7 26.10 26.14 1.7 WF4 C64 12:22:57.44 15:48:20.4 17.0 25.78 25.79 7.9 17.1 25.80 25.81 1.5 WF2 C65 12:22:58.00 15:48:39.9 15.7 25.88 25.93 3.4 14.8 25.68 25.76 1.9 WF2 C66 12:23:02.40 15:48:41.0 15.5 26.35 26.26 10.7 15.9 26.41 26.33 1.5 PC1 C67 12:23:01.79 15:48:41.5 14.1 26.52 26.49 3.0 PC1 C68 12:22:57.24 15:47:37.8 10.9 26.00 25.91 8.5 10.9 26.06 25.99 1.7 WF2 P2=22.5d C69 12:23:02.43 15:48:45.4 9.2 26.38 26.45 3.2 PC1 C70 12:23:02.94 15:48:40.7 7.3 26.32 26.36 9.0 7.5 26.38 26.37 1.7 PC1 P2=14.6d, P3=4.3d N1 12:23:03.52 15:49:41.7 N/A N/A N/A N/A N/A N/A N/A WF4 Nova