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Table A.1

Log file of the observations of comet 41P at the Mt. Wendelstein 2m Fraunhofer telescope.

Time to/from SDSS r SDSS i SDSS g TRP TRP
Perihelion r Δ φ PR Inst. Date Time N TEX Time N TEX Time N TEX Min Max
(days) (AU) (AU) (deg) (km) (UT) (UT) (s) (UT) (s) (UT) (s) (%) (%)
−32.73 1.135 0.178 34.32 25.81 3KK 2017/03/11 00:06–00:56 6 360 na na
−31.71 1.130 0.174 35.76 25.33 3KK 2017/03/12 00:44–01:05 12 720 00:44–01:05 10 600 68 78
−30.90 1.126 0.172 36.93 24.95 3KK 2017/03/12 18:15–22:25 104 6240 18:15–22:25 104 6240 42 84
−19.64 1.079 0.147 52.89 21.35 3KK 2017/03/24 02:25–02:53 13 780 02:25–02:53 2 120 29 56
−18.84 1.076 0.146 53.95 21.21 3KK 2017/03/24 21:39–22:09 13 780 21:39–22:09 13 780 43 67
−17.97 1.073 0.145 55.08 21.07 3KK 2017/03/25 18:29–18:58 11 660 18:29–18:58 6 360 51 59
−16.95 1.070 0.144 56.39 20.94 3KK 2017/03/26 19:05–19:30 60 780 19:05–19:21 7 420 58 62
−15.71 1.067 0.143 57.90 20.80 3KK 2017/03/28 00:36–01:06 13 780 00:36–01:06 10 600 72 78
−14.79 1.064 0.143 59.01 20.73 3KK 2017/03/28 22:53–23:23 12 720 22:53–23:23 10 600 62 68
−13.88 1.062 0.142 60.03 20.67 3KK 2017/03/29 20:33–21:02 13 780 20:33–21:02 12 720 52 59
−12.95 1.060 0.142 61.05 20.64 3KK 2017/03/30 18:56–19:20 13 780 18:56–19:20 13 780 65 72
−9.73 1.053 0.142 64.21 20.66 3KK 2017/04/03 00:03–01:07 25 1500 00:03–01:07 17 1020 37 59
−3.61 1.046 0.147 68.40 21.31 3KK 2017/04/09 02:53–03:44 22 1320 02:53–03:42 21 1260 57 69
−2.67 1.046 0.148 68.83 21.47 3KK 2017/04/10 01:46–02:16 13 780 01:46–02:16 13 780 67 76
−2.61 1.046 0.148 68.85 21.38 WWFI 2017/04/10 03:15–03:24 5 300 - 62 82
−0.64 1.045 0.151 69.52 21.87 3KK 2017/04/12 02:19–02:47 13 780 02:19–02:47 13 780 54 62
−0.61 1.045 0.151 69.53 21.77 WWFI 2017/04/12 03:16–03:20 2 120 - 29 49
8.30 1.051 0.167 69.52 24.20 WWFI 2017/04/21 01:04–01:29 12 720 - 82 86
8.34 1.051 0.167 69.51 24.33 3KK 2017/04/21 01:41–02:49 26 1560 01:41–02:49 24 1440 65 69
11.36 1.056 0.174 68.51 25.22 WWFI 2017/04/24 02:18–02:39 11 660 - 72 84
12.22 1.058 0.177 68.15 25.65 3KK 2017/04/24 22:42–23:40 25 1500 22:42–23:40 24 1440 59 70
17.22 1.071 0.189 65.46 27.37 WWFI 2017/04/29 23:00–23:25 13 780 - 74 92
18.22 1.074 0.192 64.83 27.76 WWFI 2017/04/30 23:02–23:23 13 780 22:34–22:59 13 780 00:59–01:05 2 120 26 72
23.26 1.092 0.206 61.16 29.93 3KK 2017/05/05 23:36–00:43 30 1800 23:36–00:43 27 1620 67 79
27.24 1.109 0.218 57.85 31.62 3KK 2017/05/09 23:36–00:05 13 780 23:36–00:05 13 780 71 77
27.28 1.109 0.218 57.83 31.47 WWFI 2017/05/10 00:24–00:49 13 780 - 92 95
28.33 1.113 0.221 56.90 31.93 WWFI 2017/05/11 01:13–02:29 18 1080 - 59 63
31.10 1.127 0.229 54.39 33.31 3KK 2017/05/13 20:11–20:33 10 600 20:11–20:39 11 660 22 64
31.26 1.128 0.230 54.24 33.22 WWFI 2017/05/14 00:07–00:14 4 240 82 89
34.20 1.143 0.239 51.46 34.55 WWFI 2017/05/16 22:43–23:01 12 720 - 73 79
36.14 1.153 0.245 49.58 35.64 3KK 2017/05/18 21:05–21:33 13 780 21:05–21:33 10 600 15 54
36.23 1.154 0.246 49.49 35.50 WWFI 2017/05/18 23:26–23:45 3 180 23:46–00:05 13 780 00:06–00:24 12 720 58 86
39.27 1.171 0.256 46.48 36.97 WWFI 2017/05/22 00:18–00:37 13 780 00:38–00:57 13 780 00:58–01:17 13 780 82 92
40.17 1.177 0.259 45.58 37.42 WWFI 2017/05/22 21:51–22:10 13 780 22:11–22:30 13 780 22:30–22:49 13 780 68 87
43.20 1.095 0.270 42.51 38.97 WWFI 2017/05/25 22:33–22:52 12 720 22:52–23:10 10 600 23:12–23:18 5 300 65 87
47.13 1.221 0.284 38.51 41.12 WWFI 2017/05/29 20:54–21:12 13 780 21:13–21:18 3 180 21:33–21:52 13 780 44 71
51.21 1.249 0.301 34.39 43.54 WWFI 2017/06/02 20:55–01:01 25 1500 21:14–21:33 25 1500 21:34–21:53 13 780 68 87
52.22 1.256 0.306 33.37 44.18 WWFI 2017/06/03 21:41–01:00 33 1980 50 78
53.26 1.263 0.310 32.36 44.83 WWFI 2017/06/05 00:07–00:14 5 300 24 27
54.21 1.270 0.314 31.43 45.46 WWFI 2017/06/05 22:44–23:18 21 1260 40 67
57.14 1.291 0.328 28.63 47.47 WWFI 2017/06/08 20:24–22:54 43 2580 85 95
58.27 1.307 0.339 26.67 49.01 WWFI 2017/06/11 00:08–00:47 27 1620 93 94
62.21 1.329 0.355 24.10 51.27 WWFI 2017/06/13 21:32–23:47 20 1200 55 74
63.27 1.337 0.361 23.21 52.13 WWFI 2017/06/15 00:16–00:35 13 780 74 83
70.19 1.392 0.403 18.20 58.31 WWFI 2017/06/21 22:24–22:54 17 1020 75 82
72.29 1.417 0.425 16.50 61.41 WWFI 2017/06/25 00:43–01:20 21 1260 65 80
76.16 1.440 0.446 15.29 64.48 WWFI 2017/06/27 21:19–22:20 26 1560 33 75
82.27 1.499 0.505 13.99 72.95 WWFI 2017/07/05 00:05–00:47 23 1380 87 89
92.16 1.574 0.590 15.15 85.30 WWFI 2017/07/13 21:39–22:05 14 840 73 82
95.20 1.600 0.622 15.95 89.97 WWFI 2017/07/16 22:45–22:52 5 300 35 86
96.14 1.608 0.633 16.22 91.47 WWFI 2017/07/17 21:09–21:46 25 1500 71 84
                                   

Notes. The table rows list for each observing epoch: time to/from perihelion (in days), Sun distance r (in AU), Earth distance Δ (in AU), phase angle φ (in deg), pixel resolution PR (in km at the distance of the comet), instrument Inst. (3KK or WWFI) used for the observations of the comet, civil date (in UT; format year/month/day), and thereafter per filter SDSS r, SDSS i, SDSS g the time interval (in UT), the number N of images available and the total integration time TEX (in s) of the respective filter sequence. The last two columns give values for the minimum/maximum transparency TRP Min/Max (in percent) in the field of view of the comet during the nightly exposure series compared to best possible transparency for the site (na = not applicable due to unreliable flux calibration of the instrument). Julian Date of perihelion passage of 41P is 2457856.24959 (2017 April 12).

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