Работа поддержана грантом РФФИ 15-02-03025

Лаборатория астрометрии и звездной астрономии.

Photometric observations of the mutual phenomena of the Galilean satellites at the Pulkovo observatory in 2014-2015

M.Yu. Khovritchev, I.S. Izmailov, E.A. Roshchina, D.L. Gorshanov, A.M. Kulikova
Pulkovo Observatory, Russian Academy of Sciences
(Submitted on 21 Dec 2016)

We present the results of photometric observations of the mutual phenomena in the system of Galilean satellites obtained during 2014-2015. The observations were performed using the 26-inch refractor, Normal Astrograph, ZA-320 telescope of the Pulkovo Observatory (084) and MTM-500 telescope at Pulkovo mountain station at Kislovodsk (C20). We made observations a total of 72 phenomena. We had derived 51 light curves of good and medium quality for 34 events. The RMS of determining the brightness is within a range from 0.02 to 0.19 mag, the average RMS is 0.06 mag. This work was supported by RFBR grant (project 15-02-03025).

arxiv.org/abs/1612.06947
 

Mutual eclipses and occultations of the Galilean satellites of Jupiter 2014-2015

Ephemeries
this data and notations listed below is obtained from SAI Natural satellite service
Observarions
# begin
UTC
dur
min
end
UTC
type impact mag Δmag limb
arcsec
dist
arcsec
planet
deg
Sun
deg
phase data site telescope comment
1 2014-10-06 23:30:00 75.1 2014-10-07 00:45:06 3E4 0.057 5 0.353 98.35 32.36 26 -27 0.986 127 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J4)-mag(J2)
2 2014-10-21 02:01:20 3 2014-10-21 02:04:20 2O3 0.943 4.8 0.007 129.32 0 47 -16 0.18 1012 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J2+J3)-(mag(J1)+(mag(J4))/2
3 2014-11-19 03:02:03 7.3 2014-11-19 03:09:21 4O3 0.596 4.7 0.23 56.18 0 44.533 -21.816 0.23 79 points 084 PulkovoNormal astrographmag(J3+J4)-mag(J2)
4 2014-11-19 03:02:03 7.3 2014-11-19 03:09:21 4O3 0.596 4.7 0.23 56.18 0 44.533 -21.816 0.23 536 points 084 PulkovoZA-320Mmag(J3+J4) without reference object, quadratic trend is deleted
5 2014-11-19 03:02:03 7.3 2014-11-19 03:09:21 4O3 0.596 4.7 0.23 56.18 0 44.533 -21.816 0.23 475 points 084 Pulkovo26-inch refractormag(j4+j3)-mag(j2)
6 2014-12-06 22:11:17 7.9 2014-12-06 22:19:08 3O1 0.261 4.4 0.514 86.18 0 37 -63 0.96 1124 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J1+J3)-(mag(J2)+mag(J4))/2
7 2014-12-14 20:55:02 59 2014-12-14 21:53:59 3O1 0.09 4.4 0.567 92.52 0 38 -67 0.53 1272 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J1+J3)-(mag(J2)+mag(J4))/2
8 2015-01-21 03:47:39 9.6 2015-01-21 03:57:15 2E1 0.46 4.5 0.352 110.22 9.5 26.129 -19.873 0.06 395 points 084 PulkovoZA-320Mmag(J1)-mag(J2)
9 2015-01-21 03:47:39 9.6 2015-01-21 03:57:15 2E1 0.46 4.5 0.352 110.22 9.5 26.129 -19.873 0.06 628 points 084 Pulkovo26-inch refractormag(j1)-mag(j2)
10 2015-01-21 04:34:35 7.9 2015-01-21 04:42:29 2O1 0.441 4.5 0.271 109.03 0 20.249 -14.044 0.06 391 points 084 PulkovoZA-320Mmag(J1+J2) without reference object, quadratic trend is deleted
11 2015-01-21 04:34:35 7.9 2015-01-21 04:42:29 2O1 0.441 4.5 0.271 109.03 0 20.249 -14.044 0.06 777 points 084 Pulkovo26-inch refractormag(j1+j2)-mag(j3)
12 2015-02-06 18:58:39 7.3 2015-02-06 19:05:57 2O3 0.778 4.3 0.053 185.01 0 34.344 -33.694 0.83 458 points 084 Pulkovo26-inch refractormag(j2+j3)-mag(j4)
13 2015-02-09 20:56:05 5.4 2015-02-09 21:01:29 3O1 0.437 4.2 0.342 54.58 0 45.438 -42.832 0.64 373 points 084 PulkovoNormal astrographmag(J1+J3)-mag(J2), united with 3E1
14 2015-02-09 20:56:05 5.4 2015-02-09 21:01:29 3O1 0.437 4.2 0.342 54.58 0 45.438 -42.832 0.64 312 points 084 Pulkovo26-inch refractormag(j1+j3)-mag(star)
15 2015-02-09 21:06:06 7.2 2015-02-09 21:13:18 3E1 0.313 4.2 0.567 51.37 6.91 45.882 -43.345 0.64 373 points 084 PulkovoNormal astrographmag(J1+J3)-mag(J2), united with 3O1
16 2015-02-09 21:06:06 7.2 2015-02-09 21:13:18 3E1 0.313 4.2 0.567 51.37 6.91 45.882 -43.345 0.64 355 points 084 Pulkovo26-inch refractormag(j1+j3)-mag(star)
17 2015-02-16 23:18:59 5.5 2015-02-16 23:24:29 3O1 0.326 4.2 0.451 43.64 0 42.796 -41.003 0.16 360 points 084 Pulkovo26-inch refractormag(j1+j3)-mag(j4) bad fitting
18 2015-02-16 23:52:37 7.2 2015-02-16 23:59:49 3E1 0.174 4.2 0.567 33.35 18.8 39.926 -39.065 0.16 472 points 084 Pulkovo26-inch refractormag(j1)-mag(j3)
19 2015-02-23 17:09:39 7.1 2015-02-23 17:16:45 3E2 0.459 4.3 0.462 60.22 33.82 31.07 -15.714 0.36 349 points 084 Pulkovo26-inch refractormag(j2)-mag(j4)
20 2015-02-26 20:25:46 4.3 2015-02-26 20:30:02 4O2 0.728 4.9 0.175 45.96 0 63 -53 0.58 686 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J2+J4)-mag(J3), bad conditions
21 2015-03-04 17:12:02 6 2015-03-04 17:18:02 2O1 0.075 4.6 0.586 95.37 0 36.106 -13.267 0.94 353 points 084 Pulkovo26-inch refractormag(j2+j1)-mag(j3)
22 2015-03-04 17:12:02 6 2015-03-04 17:18:02 2O1 0.075 4.6 0.586 95.37 0 36.106 -13.267 0.94 161 points 084 PulkovoNormal astrographmag(J1+J2)-mag(J3)
23 2015-03-04 18:11:07 6.8 2015-03-04 18:17:55 2E1 0.146 4.6 0.849 85.64 22.91 41.927 -20.392 0.94 369 points 084 Pulkovo26-inch refractormag(j1)-mag(j2)
24 2015-03-04 18:11:07 6.8 2015-03-04 18:17:55 2E1 0.146 4.6 0.849 85.64 22.91 41.927 -20.392 0.94 277 points 084 PulkovoNormal astrographmag(J1+J2)-mag(J3)
25 2015-03-04 18:11:07 6.8 2015-03-04 18:17:55 2E1 0.146 4.6 0.849 85.64 22.91 41.927 -20.392 0.94 305 points 084 PulkovoZA-320Mmag(J1)-(mag(J2)+mag(J3)+mag(J4))/3
26 2015-03-09 21:30:53 4.3 2015-03-09 21:35:11 3O2 0.692 4.4 0.135 55.43 0 44.634 -34.262 0.75 287 points 084 Pulkovo26-inch refractormag(j2+j3)-mag(j4)
27 2015-03-09 23:35:29 8.1 2015-03-09 23:43:35 3E2 0.036 4.4 0.465 84.57 55.42 32.576 -32.284 0.74 469 points 084 Pulkovo26-inch refractormag(j2)-mag(j3)
28 2015-03-09 23:35:29 8.1 2015-03-09 23:43:35 3E2 0.036 4.4 0.465 84.57 55.42 32.576 -32.284 0.74 203 points 084 PulkovoNormal astrographmag(J2+J3)-mag(J4)
29 2015-03-13 23:16:16 27.4 2015-03-13 23:43:40 1E3 0.173 4.3 0.586 49.08 22.14 32.91 -31.64 0.48 1326 points 084 Pulkovo26-inch refractormag(j3)-mag(j2)
30 2015-03-16 01:33:32 10.7 2015-03-16 01:44:14 4O2 0.308 4.9 0.808 170.56 0 14.809 -20.105 0.33 639 points 084 Pulkovo26-inch refractormag(j4+j2)-mag(j3)
31 2015-03-16 16:33:26 4.6 2015-03-16 16:38:02 1E2 0.347 4.6 0.559 9.4 39.77 37.738 -4.734 0.29 312 points 084 Pulkovo26-inch refractormag(j2)-mag(j1)
32 2015-03-17 00:21:17 3.5 2015-03-17 00:24:47 3O2 0.817 4.4 0.062 61.53 0 23.423 -26.425 0.26 254 points 084 Pulkovo26-inch refractormag(j3+j2)-mag(j1)
33 2015-03-18 21:24:41 5.2 2015-03-18 21:29:53 2O1 0.308 4.6 0.381 86.8 0 42.353 -30.626 0.12 315 points 084 Pulkovo26-inch refractormag(j2+j1)-mag(j3)
34 2015-03-18 21:24:41 5.2 2015-03-18 21:29:53 2O1 0.308 4.6 0.381 86.8 0 42.353 -30.626 0.12 280 points 084 PulkovoNormal astrographmag(J2+J1)-mag(J4)
35 2015-03-18 21:24:41 5.2 2015-03-18 21:29:53 2O1 0.308 4.6 0.381 86.8 0 42.353 -30.626 0.12 367 points 084 PulkovoZA-320Mmag(J1+J2)-(mag(J3)+mag(J4))/2
36 2015-03-18 22:47:47 5.8 2015-03-18 22:53:35 2E1 0.366 4.6 0.521 70.96 33.52 33.855 -30.632 0.11 260 points 084 PulkovoNormal astrographmag(J2+J1)-mag(J4)
37 2015-03-18 22:47:47 5.8 2015-03-18 22:53:35 2E1 0.366 4.6 0.521 70.96 33.52 33.855 -30.632 0.11 651 points 084 PulkovoZA-320Mmag(J1)-(mag(J2)+mag(J3)+mag(J4))/3
38 2015-03-18 22:47:47 5.8 2015-03-18 22:53:35 2E1 0.366 4.6 0.521 70.96 33.52 33.855 -30.632 0.11 372 points 084 Pulkovo26-inch refractormag(j1)-mag(j2)
39 2015-03-24 18:39:59 26.5 2015-03-24 19:06:29 2E4 0.49 5 0.259 252.83 74.05 61 -36 0.94 2096 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J4)-(mag(J1)+mag(J2))/2
40 2015-03-25 23:32:36 4.8 2015-03-25 23:37:24 2O1 0.414 4.7 0.292 82.07 0 24.959 -26.025 0.42 253 points 084 Pulkovo26-inch refractormag(j1+j2)-mag(j3)
41 2015-03-26 01:05:07 5.3 2015-03-26 01:10:25 2E1 0.485 4.7 0.371 63.52 37.87 13.297 -19.048 0.42 234 points 084 Pulkovo26-inch refractormag(j1)-mag(j2)
42 2015-04-06 23:14:05 5.2 2015-04-06 23:19:17 1E2 0.018 4.8 0.626 15.65 47.9 21.242 -22.186 0.85 407 points 084 PulkovoZA-320Mmag(J2)-(mag(1)+mag(J3)+mag(J4))/3
43 2015-04-06 23:14:05 5.2 2015-04-06 23:19:17 1E2 0.018 4.8 0.626 15.65 47.9 21.242 -22.186 0.85 230 points 084 Pulkovo26-inch refractormag(j2)-mag(j1), too close to planet
44 2015-04-11 17:57:15 7 2015-04-11 18:04:15 1O3 0.549 4.4 0.161 86.49 0 48.234 -6.805 0.53 427 points 084 Pulkovo26-inch refractormag(j3+j1)-mag(j2)
45 2015-04-11 21:01:07 5.4 2015-04-11 21:06:31 1E3 0.772 4.5 0.096 116.87 65.16 35.096 -20.907 0.52 333 points 084 Pulkovo26-inch refractormag(j3)-mag(j1)
46 2015-04-18 20:51:42 6 2015-04-18 20:57:42 1O3 0.573 4.5 0.149 75.53 0 33.033 -18.148 0.01 381 points 084 Pulkovo26-inch refractormag(j3+j1)-mag(j2)
47 2015-04-18 20:51:42 6 2015-04-18 20:57:42 1O3 0.573 4.5 0.149 75.53 0 33.033 -18.148 0.01 281 points 084 PulkovoNormal astrographmag(J1+J3)-mag(J4)
48 2015-05-08 21:21:26 5.5 2015-05-08 21:26:53 1E2 0.315 5 0.572 30.19 43.94 19 -13 0.68 389 points 084 PulkovoZA-320Mmag(J2)-(mag(1)+mag(J3)+mag(J4))/3
49 2015-05-21 17:17:44 3.6 2015-05-21 17:21:21 2O1 0.488 5.1 0.236 40.73 0 44 -8 0.15 646 points C20 KislovodskMTM-500M Maksutov-Cassegrainmag(J1+J2)-(mag(J3)+mag(J4))/2
50 2015-05-28 19:35:15 3.8 2015-05-28 19:39:03 2O1 0.365 5.1 0.332 35.62 0 23.921 -3.848 0.69 304 points 084 PulkovoZA-320Mmag(J1+J2)-mag(J3)
51 2015-05-28 19:35:15 3.8 2015-05-28 19:39:03 2O1 0.365 5.1 0.332 35.62 0 23.921 -3.848 0.69 242 points 084 Pulkovo26-inch refractormag(j1+j2)-mag(j3)



Notations
Explanations to the table of the ephemerides of the mutual occultations and eclipses of the natural satellites.
beginmoment of the start of event
endmoment of the end of event
type type of the event is given in the form "nEm" or "nOm" where n is the number of eclipsing or occulting satellite, m is the number of eclipsed or occulted one
"E" denotes an eclipse and "O" denotes an occultation.
durexpected duration of the event in minutes
impact impact factor which is equal to zero if the event is a central passage of satellite through the shadow or through the apparent disk of another satellite
Impact factor is equal to unit in the case of a grazing event.
magcombined magnitude of the pair of satellites in the event.
Δmagexpected maximum drop of the combined magnitude.
limbangular apparent distance of the occulted or eclipsed satellite from the limb of the planet (in arcseconds).
distangular apparent distance of the eclipsed satellite from the eclipsing one (in arcseconds).
planetelevation of the planet above the horizon (in degrees).
Sunangular apparent depth of the Sun under the horizon (in degrees).
phaseMoon phase (0.0 for new Moon, 1.000 for full Moon).