[Iaude] MPEC J46: 2019 WX4 [a=1.95,e=0.63,i=29.5,H=21.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue May 4 10:05:59 EDT 2021


M.P.E.C. 2021-J46                                   Issued 2021 May 4, 14:04 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

                                    2019 WX4                                    


                           Revision to MPEC 2019-X03                            

Additional Observations:
     K19W04X  C2009 06 15.39771516 36 29.035-24 41 43.64         20.20GVEJ046F51
     K19W04X  C2009 06 15.41186616 36 26.619-24 42 17.38         19.66GVEJ046F51
     K19W04X  C2009 06 17.42959116 31 18.696-25 58 49.91         20.82GVEJ046F51

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith.  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 (or two decimals in degrees), reference and Delta-T
090615 F51 0.82- 0.55-    090617 F51 0.78- 0.52-    MPO545155   -0.00 days

Orbital elements:
2019 WX4                                            PHA, Earth MOID = 0.0210 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 111.68077              (2000.0)            P               Q
n   0.36107812     Peri.   74.32904     -0.76775170     -0.42192258
a   1.9531485      Node    78.52970     +0.20735414     -0.87569994
e   0.6263703      Incl.   29.47540     +0.60626858     -0.23479983
P   2.73           H   21.0           G   0.15           U   0
Residuals in seconds of arc
090615 F51  0.2+  0.1-    191207 807  0.1-  0.1-    191224 F51  0.1+  0.2-
090615 F51  0.2-  0.2+    191207 807  0.1-  0.2-    191224 F51  0.1+  0.0
090617 F51  0.2+  0.1+    191207 807  0.0   0.0     191224 F51  0.2-  0.1+
191128 F51  0.0   0.0     191207 807  0.0   0.0     191224 F51  0.6+  0.6-
191128 F51  0.1+  0.0     191207 807  0.2-  0.1-    200105 I52  0.3-  0.7+
191128 F51  0.0   0.0     191215 807  0.3+  0.5-    200105 I52  0.6-  0.1-
191129 807  0.1+  0.0     191215 807  0.2+  0.2-    200105 I52  0.2-  0.0
191129 807  0.3-  0.0     191215 807  0.1-  0.2-    200105 I52  0.1-  0.3+
191129 807  0.3-  0.0     191215 290  0.0   0.0     200107 I52  0.2-  0.8-
191129 L01  0.1-  0.9+    191215 290  0.2-  0.0     200107 I52  0.5+  0.2+
191129 L01  0.5-  0.4+    191215 290  0.2-  0.0     200107 I52  1.3-  0.0
191129 L01  0.0   0.3+    191216 807  0.2+  0.3-    200107 I52  0.0   0.0
191130 F51  0.0   0.0     191216 807  0.1+  0.2-    200118 291  0.0   0.6+
191130 F51  0.1-  0.1+    191216 807  0.1+  0.2-    200118 291  0.3+  0.5+
191130 F51  0.1+  0.0     191216 F51  0.1-  0.1+    200521 F51  0.0   0.2+
191130 F51  0.1+  0.1+    191218 807  0.0   0.1-    200521 F51  0.0   0.4+
191202 I52  0.1-  0.3+    191218 807  0.0   0.4-    200521 F51  0.0   0.1-
191202 I52  0.1-  0.0     191218 807  0.2+  0.1-    200525 F51  0.2+  0.2+
191202 I52  0.1+  0.1-    191220 I52  0.1+  0.4+    200525 F51  0.0   0.4-
191202 I52  0.1-  0.6+    191220 I52  0.1-  0.1+    200531 F51  0.2-  0.4-
191203 F52  0.1+  0.0     191220 I52  0.5-  0.4+    200531 F51  0.1-  0.0
191203 F52  0.1-  0.2-    191220 I52  0.1-  0.3+    200615 F51  0.1-  0.2-
191203 F52  0.1-  0.1+    191224 F51  0.3-  0.2+    200615 F51  0.0   0.0
191207 807  0.0   0.2-    191224 F51  0.3+  0.3-

Ephemeris:
2019 WX4                 a,e,i = 1.95, 0.63, 29                  q = 0.7298
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 04    23 00 41.3 -30 07 24   3.7480  3.1157    44.6    13.0    27.1
...
2021 04 19    23 20 30.8 -29 31 25   3.6221  3.1362    53.8    15.0    27.1
...
2021 04 27    23 30 31.1 -29 20 38   3.5440  3.1454    59.0    15.9    27.1
...
2021 05 03    23 37 44.2 -29 16 59   3.4811  3.1516    62.9    16.5    27.1
2021 05 04    23 38 54.9 -29 16 46   3.4702  3.1525    63.5    16.6    27.1
2021 05 05    23 40 05.1 -29 16 40   3.4593  3.1535    64.2    16.7    27.1
...
2021 05 11    23 46 56.7 -29 18 40   3.3921  3.1587    68.2    17.3    27.1
...
2021 05 19    23 55 37.0 -29 28 39   3.2984  3.1646    73.6    17.9    27.0
...
2021 06 03    00 10 11.5 -30 12 21   3.1139  3.1726    84.0    18.5    26.9

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-J46




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