[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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