[Iaude] MPEC A215: 2017 MW7 [a=1.31,e=0.16,i=22.5,H=21.2]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sun Jan 13 08:07:17 EST 2019
M.P.E.C. 2019-A215 Issued 2019 Jan. 13, 13:04 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2017 MW7
Revision to MPEC 2017-N19
Additional Observations:
K17M07W KC2011 07 25.25029814 43 24.187+08 53 59.83 22.0 GVEA215F51
K17M07W C2011 08 18.27267215 27 30.305-14 56 42.90 22.6 GVEA215F51
K17M07W C2011 08 18.27728915 27 30.899-14 56 58.59 22.4 GVEA215F51
K17M07W C2014 05 11.40882315 58 35.015+49 47 52.90 21.5 GVEA215F51
K17M07W C2014 05 11.42245615 58 33.633+49 47 58.05 21.6 GVEA215F51
K17M07W C2014 05 16.41711115 50 39.584+50 04 04.47 22.6 GVEA215F51
K17M07W C2014 05 16.43000915 50 38.223+50 04 05.51 21.9 GVEA215F51
K17M07W C2014 05 16.45582815 50 35.373+50 04 06.51 21.9 GVEA215F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe,
E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
110725 F51 6.9+ 2.2- 140516 F51 7.5+ 1.7- MPO431169 +0.00060 day
Orbital elements:
2017 MW7 Earth MOID = 0.0886 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 38.67736 (2000.0) P Q
n 0.66083431 Peri. 200.45657 +0.78169977 +0.53496912
a 1.3053921 Node 123.05429 -0.50572681 +0.84451874
e 0.1607558 Incl. 22.48551 -0.36494639 -0.02441601
P 1.49 H 21.2 G 0.15 U 1
Residuals in seconds of arc
110725 F51 0.0 0.2- 170629 I52 0.0 0.0 170718 H21 0.2- 0.1-
110818 F51 0.2+ 0.1- 170629 I52 0.7- 0.2- 170718 H21 0.1+ 0.0
110818 F51 0.1+ 0.3+ 170630 I52 0.7- 0.9+ 170719 H21 0.3+ 0.2+
140511 F51 0.1+ 0.1- 170630 I52 0.1+ 1.3+ 170719 H21 0.3+ 0.1+
140511 F51 0.1- 0.2+ 170630 I52 0.1- 0.5- 170719 H21 0.1- 0.1-
140516 F51 0.3- 0.3- 170630 I52 0.5- 0.0 170806 807 0.2- 0.2-
140516 F51 0.2+ 0.0 170701 G96 0.2+ 0.1+ 170806 807 0.2+ 0.2-
140516 F51 0.0 0.2- 170701 G96 0.2- 0.0 170806 807 0.2+ 0.2-
170525 F51 0.1+ 0.0 170701 G96 0.1+ 0.1+ 171021 807 0.0 0.1+
170525 F51 0.1+ 0.1+ 170701 G96 0.1- 0.1+ 171021 807 0.1- 0.1+
170525 F51 0.1+ 0.2+ 170704 H21 0.5- 0.3- 171021 807 0.2+ 0.3-
170626 F51 0.1- 0.2+ 170704 H21 0.2+ 0.3+ 171112 807 0.4- 0.7-
170629 G96 0.2+ 0.1- 170704 H21 0.2- 0.1+ 171112 807 0.3- 0.1+
170629 G96 0.4+ 0.4- 170716 H21 0.0 0.1- 171112 807 0.3+ 0.1+
170629 G96 0.7- 0.6- 170716 H21 0.1+ 0.1- 180109 807 0.1+ 0.1+
170629 G96 0.1+ 0.9- 170716 H21 0.1+ 0.0 180109 807 0.1+ 0.2-
170629 I52 0.8+ 0.3+ 170718 H21 0.1- 0.2- 180109 807 0.1- 0.0
Ephemeris:
2017 MW7 a,e,i = 1.31, 0.16, 22 q = 1.0955
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 14 17 22 09.7 -14 28 22 2.1568 1.1931 8.7 7.2 23.8
...
2018 12 29 18 17 16.8 -16 47 44 2.1307 1.1614 7.1 6.0 23.6
...
2019 01 06 18 47 38.0 -17 38 18 2.1179 1.1463 6.5 5.6 23.6
...
2019 01 12 19 10 45.4 -18 04 19 2.1088 1.1359 6.2 5.3 23.5
2019 01 13 19 14 38.2 -18 07 37 2.1073 1.1343 6.1 5.3 23.5
2019 01 14 19 18 31.3 -18 10 37 2.1059 1.1327 6.1 5.3 23.5
...
2019 01 20 19 41 57.3 -18 22 20 2.0975 1.1237 6.0 5.2 23.5
...
2019 01 28 20 13 27.1 -18 20 52 2.0873 1.1135 6.2 5.5 23.5
...
2019 02 12 21 12 48.1 -17 25 30 2.0714 1.1003 7.5 6.7 23.5
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-A215
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