[Iaude] MPEC A201: 2017 XB2 [a=2.28,e=0.50,i=45.2,H=18.4]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Jan 12 18:45:16 EST 2019


M.P.E.C. 2019-A201                               Issued 2019 Jan. 12, 23:42 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 XB2
 
                          Revision to MPEC 2017-X111
 
Additional Observations:
     K17X02B  C2010 12 25.65804813 06 03.564+67 31 18.91         21.8 GVEA201F51
     K17X02B  C2010 12 25.66592413 06 04.096+67 31 22.73         22.2 GVEA201F51
     K17X02B  C2011 01 22.59890512 45 46.331+73 22 12.77         20.5 GVEA201F51
     K17X02B  C2011 01 22.60622512 45 44.400+73 22 20.08         20.6 GVEA201F51
     K17X02B  C2011 03 17.35420706 56 14.535+30 35 05.00         19.1 GVEA201F51
     K17X02B  C2011 03 17.37377706 56 13.843+30 33 10.05         19.5 GVEA201F51
     K17X02B  C2011 03 17.38794606 56 13.408+30 31 47.38         18.9 GVEA201F51
     K17X02B KC2015 08 09.51987222 58 25.136-16 22 56.96         22.5 GVEA201F51
     K17X02B  C2015 08 10.47015722 56 55.245-16 21 53.88         21.9 GVEA201F51
     K17X02B  C2015 08 10.48203322 56 54.097-16 21 52.86         21.3 GVEA201F51
     K17X02B  C2015 08 10.49393922 56 52.928-16 21 52.18         22.2 GVEA201F51
     K17X02B  C2015 08 10.50584322 56 51.769-16 21 51.51         21.5 GVEA201F51
     K17X02B  C2015 09 09.39425022 08 12.004-15 16 34.69         22.4 GVEA201F51
 
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
101225 F51  2.2+ 18.5+    150909 F51  1.0-  2.5-    MPO451932   +0.00011 day
 
Orbital elements:
2017 XB2                                                 Earth MOID = 0.2019 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 114.64797              (2000.0)            P               Q
n   0.28554664     Peri.  212.81963     -0.92280069     +0.26761166
a   2.2839400      Node   337.00642     +0.13159608     -0.45720496
e   0.5026394      Incl.   45.19818     -0.36210683     -0.84814364
P   3.45           H   18.4           G   0.15           U   0
Residuals in seconds of arc
101225 F51  0.0   0.3-    180112 703  0.0   0.2-    180211 160  0.0   0.0
101225 F51  0.0   0.0     180112 I52  0.1-  0.0     180211 T08  0.3-  0.1+
110122 F51  0.1-  0.1-    180112 I52  0.1+  0.1+    180211 T08  0.2+  0.2+
110122 F51  0.2+  0.0     180112 I52  0.0   0.1-    180211 T08  0.3+  0.2-
110317 F51  0.0   0.1-    180112 I52  0.1-  0.1+    180212 F51  0.0   0.0
110317 F51  0.1-  0.1-    180122 G96  0.1-  0.2-    180212 F51  0.0   0.0
110317 F51  0.6+  0.5+    180122 G96  0.0   0.0     180212 F51  0.0   0.0
150809 F51  0.2-  0.3-    180122 G96  0.0   0.1+    180212 F51  0.0   0.0
150810 F51  0.1+  0.0     180122 G96  0.1-  0.1-    180214 K74  0.0   0.5+
150810 F51  0.2+  0.2+    180126 J43  0.1+  0.2+    180214 K74  0.0   0.1-
150810 F51  0.0   0.1+    180126 J43  0.1-  0.3-    180214 K74  0.2+  0.2-
150810 F51  0.0   0.0     180126 J43  0.0   0.1-    180214 K74  0.2+  0.2+
150909 F51  0.1+  0.2-    180126 J43  0.1+  0.2+    180214 K74  0.0   0.2-
171208 G96  0.8-  0.7+    180126 703  0.7-  0.4-    180214 K74  0.3-  0.0
171208 G96  1.2-  0.4-    180126 703  0.5-  0.5+    180214 K74  0.1+  0.1+
171208 G96  0.8-  0.4+    180126 703  0.3-  0.1-    180214 K74  0.0   0.5+
171208 G96  0.4-  0.6-    180126 703  0.2-  0.2-    180215 T08  0.5+  0.1+
171208 G96  1.5-  0.4+    180127 691  0.0   0.1+    180215 T08  0.7+  0.3-
171208 G96  1.4-  1.0-    180127 691  0.5+  0.3+    180215 T08  0.1+  0.2-
171208 G96  0.2+  0.5-    180127 691  0.4+  0.1+    180215 T08  0.3-  0.7-
171209 H01  0.1+  0.0     180128 691  0.1+  0.3+    180223 W88  0.0   0.6-
171209 H01  0.1+  0.0     180128 691  0.1+  0.2+    180223 W88  0.2+  0.1+
171209 H01  0.1-  0.0     180128 691  0.1+  0.2+    180223 W88  0.3-  0.0
171209 H01  0.2+  0.0     180205 I52  0.1-  0.1-    180223 W88  0.2-  0.4-
171210 H01  0.1+  0.1+    180205 I52  0.2+  0.1-    180223 W88  0.6-  0.4-
171210 H01  0.1+  0.0     180205 I52  0.2-  1.0-    180224 807  0.2-  0.1-
171210 H01  0.1+  0.0     180205 I52  0.0   0.1-    180224 807  0.2+  0.2-
171210 H01  0.0   0.1+    180205 H21  0.1+  0.2-    180224 807  0.1+  0.1-
171213 033  0.0   0.1+    180205 H21  0.1-  0.0     180224 807  0.1-  0.2+
171213 033  0.1-  0.3+    180205 H21  0.1+  0.2-    180224 807  0.0   0.0
171213 033  0.0   0.1-    180206 I52  0.1+  0.6-    180224 807  0.2+  0.0
171213 033  0.1+  0.1+    180206 I52  0.1-  0.1-    180224 W88  0.1-  0.1+
171213 033  0.1-  0.1+    180206 I52  0.1+  0.1+    180224 W88  0.1+  0.0
171213 033  0.1+  0.2-    180206 I52  0.0   0.1+    180224 W88  0.3+  0.3-
171213 033  0.2+  0.0     180207 H36  0.3-  0.3-    180224 W88  0.2+  0.1+
171213 033  0.0   0.1+    180207 H36  0.1+  0.1+    180303 W88  0.5-  0.5-
171213 I52  0.1-  0.2-    180207 691  0.1+  0.3+    180303 W88  0.1-  0.1+
171213 I52  0.3+  0.3+    180207 H36  0.0   0.0     180303 W88  0.4-  0.3-
171213 I52  0.4-  0.4-    180207 691  0.0   0.2+    180310 474  0.1+  0.1+
171213 926  0.2+  0.3+    180207 691  0.2+  0.2+    180310 474  0.0   0.0
171213 I52  0.3+  0.3-    180207 T08  0.2-  0.4+    180310 474  0.1-  0.1-
171213 926  0.1-  0.7+    180207 T08  0.8-  0.1+    180323 I47  0.1+  0.2-
171213 926  0.3+  1.0+    180207 T08  0.4-  0.3+    180323 I47  0.4-  1.1-
171214 I52  0.1+  0.3+    180207 T08  0.1+  0.0     180405 807  0.6+  0.4-
171214 I52  0.0   0.4-    180208 691  0.2-  0.2+    180405 807  0.1+  0.2-
171214 I52  0.1-  0.0     180208 691  0.0   0.3+    180405 807  0.1+  0.0
171214 I52  0.5+  0.1-    180208 691  0.3-  0.0     180512 474  0.2+  0.1-
171222 V06  0.2+  0.2+    180209 703  0.3+  0.2-    180512 474  0.2+  0.1-
171222 V06  0.8+  0.4-    180209 703  0.5-  0.3-    180512 474  0.3+  0.3+
171222 V06  0.6+  0.3-    180209 703  0.3-  0.2+    180717 474  0.5+  0.3+
180112 703  0.9+  1.2+    180211 160  0.1-  0.4-    180717 474  0.3+  0.5+
180112 703  0.5-  0.4+    180211 160  0.5-  0.2+    180717 474  0.2-  0.0

Ephemeris:
2017 XB2                 a,e,i = 2.28, 0.50, 45                  q = 1.1359
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 12 13    20 56 01.8 -26 44 29   3.0997  2.5623    48.9    16.8    23.8
...
2018 12 28    21 16 22.3 -23 17 46   3.3251  2.6348    39.0    13.6    23.9
...
2019 01 05    21 27 00.7 -21 31 39   3.4336  2.6721    33.7    11.8    23.9
...
2019 01 11    21 34 53.4 -20 13 34   3.5089  2.6994    29.7    10.4    23.9
2019 01 12    21 36 11.6 -20 00 40   3.5209  2.7039    29.1    10.2    23.9
2019 01 13    21 37 29.7 -19 47 47   3.5327  2.7084    28.4     9.9    23.9
...
2019 01 19    21 45 14.4 -18 31 09   3.6004  2.7351    24.4     8.6    24.0
...
2019 01 27    21 55 24.2 -16 50 24   3.6813  2.7697    19.1     6.7    23.9
...
2019 02 11    22 13 55.7 -13 45 09   3.8022  2.8322     9.1     3.2    23.9

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-A201



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