[Iaude] MPEC C110: 2017 XG62 [a=1.52,e=0.38,i=42.1,H=20.2]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Feb 15 09:31:17 EST 2018


M.P.E.C. 2018-C110                               Issued 2018 Feb. 15, 14:28 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 XG62
 
                           Revision to MPEC 2017-Y34
 
Additional Observations:
     K17X62G  C2002 06 13.41700 20 05 06.54 -30 26 57.1          19.3 RcEC110644
     K17X62G  C2002 06 13.42733 20 05 04.95 -30 26 15.4          19.4 RcEC110644
     K17X62G  C2002 06 13.43779 20 05 03.34 -30 25 33.1          19.1 RcEC110644
     K17X62G  C2002 06 14.43741 20 02 33.79 -29 16 04.5          19.7 RcEC110644
     K17X62G  C2002 06 14.45984 20 02 30.14 -29 14 26.8          19.5 RcEC110644
     K17X62G  C2002 06 15.43074 19 59 55.98 -28 02 38.5          19.1 RcEC110644
     K17X62G  C2002 06 15.44184 19 59 54.07 -28 01 47.6          19.7 RcEC110644
     K17X62G  C2002 06 15.45323 19 59 52.09 -28 00 55.4          19.4 RcEC110644
     K17X62G  C2002 06 17.36030 19 54 23.14 -25 26 29.3          19.7 RcEC110644
     K17X62G  C2002 06 17.39801 19 54 15.90 -25 23 15.6          19.5 RcEC110644
     K17X62G  C2002 06 18.31186 19 51 25.73 -24 02 26.4          18.6 RcEC110644
     K17X62G  C2002 06 18.32064 19 51 23.95 -24 01 38.7                cEC110644
     K17X62G  C2002 06 18.32963 19 51 22.17 -24 00 49.5          18.5 RcEC110644
 
Observer details:
644 Palomar Mountain/NEAT.  Observers E. F. Helin, S. Pravdo, K. Lawrence,
    K. Kuluhiwa, M. Hicks, R. Thicksten.  Measurer R. Matson.  1.2-m Schmidt
    + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
020613 644 0.71+ 0.89+    020618 644 0.87+ 1.02+    MPO431407   +0.0030 day
 
Orbital elements:
2017 XG62                                                Earth MOID = 0.2495 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  87.79561              (2000.0)            P               Q
n   0.52405642     Peri.   91.02052     +0.73748668     -0.09318793
a   1.5236458      Node   274.59076     -0.19616387     +0.91817799
e   0.3810190      Incl.   42.14851     +0.64624541     +0.38505219
P   1.88           H   20.2           G   0.15           U   2
Residuals in seconds of arc
020613 644  0.3+  0.0     171216 C77  0.3+  0.3+    171218 K88  0.3-  0.3+
020613 644  0.3+  0.1+    171216 C77  1.0+  0.2-    171218 K88  0.7-  0.4+
020613 644  0.3+  0.1+    171216 C77 (2.6+  1.2+)   171218 C47  0.1+  0.2+
020614 644  0.2+  0.4-    171217 L01  0.2-  0.0     171218 C47  0.1+  0.1-
020614 644  0.4+  0.6+    171217 L01  0.4-  0.2-    171218 C47  0.1-  0.1-
020615 644  0.3-  0.0     171217 L01  0.0   0.3-    171218 C47  0.1-  0.1-
020615 644  0.1-  0.1+    171217 L01  0.5+  0.8+    171218 C47  0.1-  0.0
020615 644  0.2-  0.1+    171217 L01  0.2-  1.0-    171219 204  0.1-  0.1+
020617 644  0.0   0.6+    171217 L01  0.1-  0.7-    171219 204  0.0   0.0
020617 644  0.0   0.4+    171217 L01  1.1+  0.2-    171219 204  0.1-  0.0
020618 644  0.0   0.8-    171217 587  0.3+  0.1+    171224 V06  0.0   0.1-
020618 644  0.3-  0.7-    171217 587  0.1+  0.2+    171224 V06  0.0   0.2+
020618 644  0.1-  0.3-    171217 K38  0.2+  0.2-    171224 V06  0.5-  0.0
171215 T08  0.7-  0.5-    171217 K38  0.0   0.2-    180105 926  0.6-  0.7+
171215 T08  1.2-  1.2-    171217 K63  0.0   0.3+    180105 926  0.3+  0.4+
171215 T08  0.1-  0.3+    171217 K63  0.1+  0.1+    180105 926  0.2-  0.2-
171215 T08  0.7+  0.2-    171217 K63  0.0   0.5+    180105 F51  0.0   0.1-
171216 J95  0.4+  0.5+    171217 157  0.3+  0.5+    180105 F51  0.3+  0.0
171216 J95  0.0   0.0     171217 157  0.3-  0.1+    180105 F51  0.2-  0.1-
171216 J95  0.1+  0.1-    171217 157  0.1+  0.3-    180106 I52  0.0   0.1-
171216 I52  0.0   0.3-    171217 104  0.1-  0.0     180106 I52  0.2+  0.2-
171216 I52  0.0   0.7-    171217 104  0.0   0.1-    180106 I52  0.1+  0.1-
171216 I52  0.4-  0.1-    171217 104  0.1-  0.1+    180106 691  0.3+  0.1+
171216 I52  0.4-  0.7-    171217 511  0.2-  0.3-    180106 691  0.4-  0.0
171216 926  0.6-  0.2+    171217 511  0.2-  0.0     180117 I52  0.2+  0.0
171216 926  0.4-  0.5+    171217 511  0.1-  0.1-    180117 I52  0.2+  0.1+
171216 595  0.7+  0.4+    171217 511  0.0   0.7-    180117 I52  0.0   0.2-
171216 K88  0.3-  0.6+    171217 511  0.2-  0.0     180117 I52  0.3-  0.0
171216 K88  0.4-  0.1+    171217 511  0.2-  0.1-    180118 691  0.2+  0.4+
171216 K88  0.1-  0.5+    171217 511  0.0   0.2-    180118 691  0.3+  0.3-
171216 160  0.3+  0.3+    171217 511  0.1-  0.4-    180125 807  0.2+  0.2-
171216 160  0.1+  0.1+    171218 113  0.3+  0.7-    180125 807  0.3+  0.4-
171216 160  0.1+  0.0     171218 113  0.3+  0.3+    180125 807  0.0   0.3-
171216 160  0.0   0.4-    171218 113  1.2-  0.5+    180209 807  0.8-  0.5+
171216 160  0.3+  0.2+    171218 113  0.2+  0.3-    180209 807  0.4-  0.1+
171216 595  0.3+  0.1+    171218 K88  0.1-  0.1+    180209 807  0.2-  0.2-

Ephemeris:
2017 XG62                a,e,i = 1.52, 0.38, 42                  q = 0.9431
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 01 16    04 36 57.0 +07 05 59   0.4989  1.3657   131.4    32.7    20.7
...
2018 01 31    04 45 23.6 -00 43 16   0.7123  1.4501   116.4    37.5    21.8
...
2018 02 08    04 52 21.3 -02 48 32   0.8325  1.4939   110.1    38.3    22.2
...
2018 02 14    04 58 23.6 -03 51 19   0.9239  1.5260   105.9    38.5    22.5
2018 02 15    04 59 27.6 -03 59 51   0.9392  1.5313   105.2    38.5    22.5
2018 02 16    05 00 32.6 -04 07 55   0.9544  1.5366   104.6    38.5    22.6
...
2018 02 22    05 07 22.2 -04 47 42   1.0462  1.5678   100.7    38.3    22.8
...
2018 03 02    05 17 14.3 -05 23 35   1.1680  1.6083    96.0    37.8    23.1
...
2018 03 17    05 37 40.3 -06 00 35   1.3920  1.6804    87.9    36.3    23.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-C110



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