MPEC 2015-G28 : COMET C/2015 G2 (MASTER)
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M.P.E.C. 2015-G28 Issued 2015 Apr. 10, 19:20 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2015 G2 (MASTER)
Observations:
CK15G020 C2015 03 30.14021 21 43 49.71 -13 47 37.1 11.6 ToEG028K95
CK15G020 C2015 03 30.14472 21 43 50.09 -13 47 40.2 11.5 ToEG028K95
CK15G020 C2015 03 30.14914 21 43 50.47 -13 47 43.2 11.5 ToEG028K95
CK15G020 C2015 04 07.12551 21 56 37.54 -15 36 56.3 10.7 ToEG028K95
CK15G020 C2015 04 07.13007 21 56 38.03 -15 37 00.7 10.6 ToEG028K95
CK15G020 C2015 04 07.13464 21 56 38.56 -15 37 05.6 10.7 ToEG028K95
CK15G020 C2015 04 08.11875 21 58 29.42 -15 53 22.3 10.6 ToEG028K95
CK15G020 C2015 04 08.12366 21 58 29.99 -15 53 27.3 10.6 ToEG028K95
CK15G020 C2015 04 08.12584 21 58 30.24 -15 53 30.3 10.6 ToEG028K95
CK15G020 C2015 04 08.13113 21 58 30.99 -15 53 34.4 11.2 ToEG028K95
CK15G020 C2015 04 08.13326 21 58 31.26 -15 53 36.5 11.1 ToEG028K95
CK15G020 C2015 04 08.13537 21 58 31.52 -15 53 39.2 11.2 ToEG028K95
CK15G020 C2015 04 08.13644 21 58 31.37 -15 53 40.7 11.4 ToEG028K95
CK15G020 C2015 04 08.13749 21 58 31.46 -15 53 42.0 11.2 ToEG028K95
CK15G020 C2015 04 08.13990 21 58 31.76 -15 53 44.1 11.3 ToEG028K95
CK15G020 C2015 04 08.35332 21 58 56.82 -15 57 22.5 13.0 TqEG028W96
CK15G020 C2015 04 08.36125 21 58 57.76 -15 57 30.6 13.1 TqEG028W96
CK15G020 C2015 04 08.36958 21 58 58.69 -15 57 39.2 13.0 TqEG028W96
CK15G020 C2015 04 08.37791 21 58 59.63 -15 57 48.0 13.1 TqEG028W96
CK15G020 C2015 04 08.38947 21 59 00.99 -15 57 59.8 13.0 TqEG028W96
CK15G020 C2015 04 08.39780 21 59 01.94 -15 58 08.7 12.9 TqEG028W96
CK15G020 C2015 04 08.40614 21 59 02.92 -15 58 17.1 13.0 TqEG028W96
CK15G020 0C2015 04 08.76593 21 59 45.20 -16 04 29.4 13.7 TqEG028Q62
CK15G020 0C2015 04 08.76793 21 59 45.44 -16 04 31.6 13.7 TqEG028Q62
CK15G020 `C2015 04 08.76927 21 59 45.55 -16 04 32.2 13.3 TqEG028D90
CK15G020 0C2015 04 08.77046 21 59 45.67 -16 04 34.1 13.7 TqEG028Q62
CK15G020 `C2015 04 08.77347 21 59 46.07 -16 04 37.1 13.2 TqEG028D90
CK15G020 2C2015 04 08.77457 21 59 46.20 -16 04 38.5 13.6 TqEG028Q62
CK15G020 2C2015 04 08.77523 21 59 46.25 -16 04 39.4 13.6 TqEG028Q62
CK15G020 2C2015 04 08.77588 21 59 46.24 -16 04 40.3 13.6 TqEG028Q62
CK15G020 `C2015 04 08.77769 21 59 46.64 -16 04 41.6 13.4 TqEG028D90
CK15G020 3C2015 04 08.77916 21 59 46.72 -16 04 43.3 12.6 TuEG028Q62
CK15G020 1C2015 04 08.78187 21 59 47.02 -16 04 46.6 vEG028Q62
CK15G020 `C2015 04 08.78192 21 59 47.08 -16 04 45.7 13.2 TqEG028D90
CK15G020 1C2015 04 08.78289 21 59 47.16 -16 04 47.5 vEG028Q62
CK15G020 1C2015 04 08.78391 21 59 47.28 -16 04 48.6 vEG028Q62
CK15G020 1C2015 04 08.78493 21 59 47.40 -16 04 49.2 10.3 TvEG028Q62
CK15G020 `C2015 04 08.78613 21 59 47.57 -16 04 50.3 13.3 TqEG028D90
CK15G020 3C2015 04 08.78701 21 59 47.60 -16 04 51.9 12.6 TuEG028Q62
CK15G020 ;C2015 04 08.79700 21 59 48.82 -16 05 02.5 13.2 TqEG028Q62
CK15G020 ;C2015 04 08.79788 21 59 48.92 -16 05 03.0 13.2 TqEG028Q62
CK15G020 ;C2015 04 08.79873 21 59 49.06 -16 05 03.7 13.2 TqEG028Q62
CK15G020 ;C2015 04 08.79958 21 59 49.16 -16 05 04.8 13.2 TqEG028Q62
CK15G020 ;C2015 04 08.80045 21 59 49.25 -16 05 05.8 13.2 TqEG028Q62
CK15G020 ?C2015 04 08.80087 21 59 49.28 -16 05 06.2 13.5 TqEG028Q62
CK15G020 ?C2015 04 08.80247 21 59 49.41 -16 05 07.6 13.5 TqEG028Q62
CK15G020 ?C2015 04 08.80405 21 59 49.67 -16 05 09.8 13.6 TqEG028Q62
CK15G020 ?C2015 04 08.80565 21 59 49.81 -16 05 12.2 13.6 TqEG028Q62
CK15G020 ?C2015 04 08.80726 21 59 50.01 -16 05 13.3 13.5 TqEG028Q62
CK15G020 C2015 04 09.35166 22 00 55.37 -16 14 51.3 13.2 TqEG028W96
CK15G020 C2015 04 09.35338 22 00 55.48 -16 14 52.9 13.0 TqEG028I39
CK15G020 C2015 04 09.35958 22 00 56.29 -16 15 00.0 13.1 TqEG028W96
CK15G020 C2015 04 09.36791 22 00 57.30 -16 15 08.8 13.1 TqEG028W96
CK15G020 C2015 04 09.37165 22 00 57.72 -16 15 12.2 12.9 TqEG028I39
CK15G020 C2015 04 09.37625 22 00 58.31 -16 15 17.9 13.1 TqEG028W96
CK15G020 C2015 04 09.38725 22 00 59.63 -16 15 29.8 13.0 TqEG028W96
CK15G020 C2015 04 09.38946 22 00 59.84 -16 15 32.2 12.9 TqEG028I39
CK15G020 C2015 04 09.39559 22 01 00.61 -16 15 38.9 13.1 TqEG028W96
CK15G020 C2015 04 09.40392 22 01 01.66 -16 15 48.1 13.0 TqEG028W96
CK15G020 ;C2015 04 09.79907 22 01 50.10 -16 22 56.6 13.1 TqEG028Q62
CK15G020 ;C2015 04 09.80024 22 01 50.26 -16 22 58.4 13.1 TqEG028Q62
CK15G020 ;C2015 04 09.80160 22 01 50.43 -16 22 59.6 13.1 TqEG028Q62
CK15G020 ;C2015 04 09.80306 22 01 50.60 -16 23 01.6 13.1 TqEG028Q62
CK15G020 ;C2015 04 09.80429 22 01 50.76 -16 23 02.8 13.1 TqEG028Q62
CK15G020 C2015 04 10.33677 22 02 57.46 -16 32 55.5 12.7 TrEG028Y00
CK15G020 C2015 04 10.33869 22 02 57.70 -16 32 57.7 12.8 TrEG028Y00
CK15G020 C2015 04 10.34262 22 02 58.24 -16 33 02.2 13.2 TrEG028Y00
CK15G020 C2015 04 10.37674 22 03 02.58 -16 33 40.7 13.2 TqEG028W96
CK15G020 C2015 04 10.38656 22 03 03.87 -16 33 51.7 13.2 TqEG028W96
CK15G020 C2015 04 10.39675 22 03 05.14 -16 34 03.5 13.1 TqEG028W96
Observer details:
D90 RAS Observatory, Moorook. Observer K. Hills. 0.41-m f/9 Ritchey-Chretien
+ CCD.
I39 Observatorio Cruz del Sur, San Justo. Observers A. Chapman, N. Diaz,
V. Agnihotri, N. Norman. Measurer A. Chapman. 0.20-m f/4 reflector + CCD.
K95 MASTER-SAAO Observatory, Sutherland. Observers P. Balanutsa, V. Lipunov,
E. Gorbovskoy, D. Buckley, S. Potter, A. Kniazev, M. Kotze, A. Kuznetsov,
N. Tiurina, V. Kornilov, N. Shatskiy, V. Chazov, D. Zimnukhov, V. Yurkov,
Y. Sergienko, K. Ivanov, S. Yazev, O. Gress, D. Denisenko. Measurers
D. Denisenko, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk,
A. Tlatov, D. Dormidontov, V. Senik, V. Shumkov, S. Shurpakov, A. Gabovich,
O. Gress, T. Alexey. 0.4-m f/2.5 reflector + CCD.
Q62 iTelescope Observatory, Siding Spring. Observers E. Guido, N. Howes,
M. Urbanik, B. Lutkenhoner, R. Ligustri, M. Mattiazzo, H. Sato. 0.43-m
f/6.8 astrograph + CCD, 0.51-m f/6.8 astrograph + CCD + f/4.5 focal
reducer.
W96 CAO, San Pedro de Atacama (since 2013). Observers A. Maury, J.-F. Soulier,
T. Noel. Measurers J.-F. Soulier, T. Noel. 0.4-m f/8 Ritchey-Chretien
+ CCD.
Y00 SONEAR Observatory, Oliveira. Observers C. Jacques, E. Pimentel,
J. Barros. Measurer C. Jacques. 0.28-m f/2.2 astrograph + CCD.
Orbital elements:
C/2015 G2 (MASTER)
T 2015 May 23.80224 TT MPCW
q 0.7797702 (2000.0) P Q
Peri. 257.47788 -0.69948087 -0.50665954
Node 110.05661 -0.23771951 +0.83004395
e 1.0 Incl. 147.55120 -0.67395545 +0.23307328
From 61 observations 2015 Mar. 30-Apr. 10.
Ephemeris:
C/2015 G2 (MASTER)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2015 03 11 21 21 29.8 -11 05 35 2.3023 1.5366 30.9 19.4 14.7
...
2015 03 26 21 38 16.5 -13 03 17 1.8877 1.3310 42.3 30.3 13.6
...
2015 04 03 21 49 35.3 -14 35 57 1.6391 1.2236 48.1 37.4 12.9
...
2015 04 09 22 00 12.5 -16 08 37 1.4419 1.1453 52.2 43.7 12.4
2015 04 10 22 02 14.7 -16 26 40 1.4083 1.1325 52.8 44.8 12.3
2015 04 11 22 04 22.5 -16 45 35 1.3744 1.1197 53.5 46.0 12.2
...
2015 04 17 22 19 46.6 -19 01 20 1.1681 1.0456 57.0 53.6 11.5
...
2015 04 25 22 52 33.6 -23 27 01 0.8909 0.9546 60.1 65.9 10.5
...
2015 05 10 02 08 16.0 -34 57 46 0.4889 0.8244 54.1 97.2 8.6
Gareth V. Williams (C) Copyright 2015 MPC M.P.E.C. 2015-G28
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