[Iaude] MPEC X147: 2020 XR [a=2.50,e=0.61,i=13.9,H=19.8]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 13 10:02:12 EST 2020


M.P.E.C. 2020-X147                            Issued 2020 December 13, 15:01 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

                                    2020 XR                                     


                           Revision to MPEC 2020-X36                            

Additional Observations:
     K20X00R  C2013 03 03.23796803 04 41.151+09 33 02.51         22.40GVEX147F51
     K20X00R  C2013 03 03.24192003 04 42.376+09 33 04.47         20.99GVEX147F51
     K20X00R  C2013 03 03.24587703 04 43.574+09 33 06.17         22.00GVEX147F51
     K20X00R  C2013 03 03.24983703 04 44.735+09 33 07.92         21.66GVEX147F51
     K20X00R  C2016 06 05.50827220 20 45.112-06 47 45.80         24.05GVEX147F51
     K20X00R  C2016 06 05.52062620 20 44.991-06 47 38.82         22.96GVEX147F51
     K20X00R  C2016 06 05.54543920 20 44.733-06 47 26.05         23.02GVEX147F51
     K20X00R  C2020 06 14.44627720 54 18.674-01 42 43.71         22.59GVEX147F51
     K20X00R  C2020 06 14.45730420 54 18.669-01 42 35.99         23.31GVEX147F51
     K20X00R  C2020 06 14.46834420 54 18.651-01 42 27.63         23.95GVEX147F51
     K20X00R  C2020 06 22.48817520 53 19.146-00 05 14.27         23.23GVEX147F51
     K20X00R  C2020 06 22.50158720 53 18.933-00 05 04.75         23.21GVEX147F51
     K20X00R  C2020 06 22.51502420 53 18.681-00 04 54.74         23.03GVEX147F51
     K20X00R  C2020 07 18.36379920 34 40.474+05 01 10.10         21.78GVEX147F51
     K20X00R  C2020 07 18.37552220 34 39.593+05 01 17.64         21.75GVEX147F51
     K20X00R  C2020 07 18.38728920 34 38.704+05 01 25.13         21.90GVEX147F51
     K20X00R  C2020 07 18.39908720 34 37.804+05 01 32.86         21.90GVEX147F51
     K20X00R  C2020 07 20.39575720 32 08.754+05 22 36.87         22.03GVEX147F52
     K20X00R  C2020 07 20.41015920 32 07.603+05 22 45.84         22.04GVEX147F52
     K20X00R  C2020 07 20.42463820 32 06.454+05 22 54.62         21.83GVEX147F52
     K20X00R  C2020 11 28.23995021 15 52.236-00 01 22.24         20.64GVEX147F51
     K20X00R  C2020 11 28.24272921 15 52.891-00 01 23.83         20.51GVEX147F51

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
    Lowe, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y.
    Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.

Orbital elements:
2020 XR                                             PHA, Earth MOID = 0.0003 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M   2.09035              (2000.0)            P               Q
n   0.24962956     Peri.  163.03724     +0.59692313     -0.76978474
a   2.4980745      Node   249.73461     +0.70529338     +0.63780314
e   0.6116810      Incl.   13.94575     +0.38241865     +0.02527071
P   3.95           H   19.8           G   0.15           U   1
Residuals in seconds of arc
130303 F51  0.1-  0.0     201205 H21  0.1-  0.1-    201207 I52  0.2+  0.3-
130303 F51  0.3+  0.3+    201205 H36  0.3-  0.9-    201207 I52  0.1+  0.2-
130303 F51  0.3+  0.2+    201205 807  0.3+  0.0     201207 H36  0.5+  0.5+
130303 F51  0.3-  0.2+    201205 807  0.0   0.0     201207 I52  0.4+  0.2-
160605 F51  0.1-  0.2-    201205 807  0.1-  0.2+    201207 807  0.1+  0.0
160605 F51  0.0   0.2+    201205 I52  0.1-  0.3-    201207 807  0.2-  0.2+
160605 F51  0.0   0.2-    201205 I52  0.1+  0.6-    201207 807  0.4-  0.1-
200614 F51  0.2-  0.1-    201205 I52  0.2+  0.2-    201208 I52  0.7+  0.4-
200614 F51  0.0   0.3-    201205 I52  0.0   0.5-    201208 I52  0.6-  0.7-
200614 F51  0.0   0.1+    201205 H36  0.4+  0.1+    201208 I52  0.2-  0.5-
200622 F51  0.0   0.4+    201205 H36  0.1+  0.6+    201208 I52  0.6+  0.8+
200622 F51  0.3+  0.1+    201205 U55  1.4-  0.4-    201209 691  0.2+  0.0
200622 F51  0.1+  0.3+    201205 U55  1.4-  0.2+    201209 691  0.3-  0.3+
200718 F51  0.0   0.1+    201206 H21  0.0   0.3+    201209 691  1.0-  0.6-
200718 F51  0.0   0.1+    201206 H21  0.2+  0.2-    201209 I52  0.3+  0.2+
200718 F51  0.0   0.1-    201206 H36  0.9+  0.7-    201209 I52  0.1+  0.1+
200718 F51  0.1-  0.1+    201206 H36  0.9-  0.4+    201209 I52  0.4+  0.1+
200720 F52  0.1-  0.1+    201206 I52  0.1-  0.2-    201209 I52  0.2+  0.1+
200720 F52  0.0   0.1+    201206 I52  0.1-  0.0     201209 T12  0.1-  0.0
200720 F52  0.2+  0.2-    201206 I52  0.1+  0.0     201209 T12  0.0   0.0
201128 F51  0.2+  0.3+    201206 I52  0.0   0.1-    201210 J04  0.2+  0.1-
201128 F51  0.1+  0.1-    201206 691  0.4-  0.0     201210 J04  0.2+  0.4-
201204 F52  0.2+  0.1+    201206 691  0.4-  0.1-    201210 J04  0.0   0.3-
201204 F52  0.3+  0.1-    201206 691 (0.9-  1.9+)   201212 691  0.6+  0.5+
201204 F52  0.3+  0.0     201207 H36  0.6+  0.4-    201212 691  0.4-  0.5+
201204 F52  0.1+  0.3-    201207 H36  0.2-  0.1+    201212 691  0.0   0.6+
201205 H21  0.2-  0.4-    201207 I52  0.2+  0.2+    201212 J04  0.4+  0.1+

Ephemeris:
2020 XR                  a,e,i = 2.50, 0.61, 14                  q = 0.9700
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 13    20 23 27.5 +01 31 54   0.5420  1.0303    78.6    70.3    21.0
...
2020 11 28    21 14 54.1 +00 00 27   0.4609  0.9808    75.8    77.1    20.8
...
2020 12 06    21 50 41.6 -01 03 24   0.4169  0.9707    75.7    79.7    20.6
...
2020 12 12    22 22 27.8 -02 01 19   0.3864  0.9711    76.7    80.6    20.5
2020 12 13    22 28 13.2 -02 11 47   0.3817  0.9719    76.9    80.6    20.5
2020 12 14    22 34 06.9 -02 22 28   0.3771  0.9728    77.2    80.6    20.4
...
2020 12 20    23 12 26.0 -03 29 56   0.3528  0.9824    79.4    79.9    20.3
...
2020 12 28    00 10 54.2 -05 00 28   0.3322  1.0052    84.1    76.7    20.1
...
2021 01 12    02 10 14.3 -06 38 31   0.3434  1.0747    95.9    65.5    20.0

A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-X147




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