[Iaude] MPEC X36: 2020 XR [a=2.50,e=0.61,i=13.9,H=19.6,PHA]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 6 23:05:13 EST 2020


M.P.E.C. 2020-X36                              Issued 2020 December 7, 04:04 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

                                    2020 XR                                     


Observations:
     K20X00R* C2020 12 04.21223621 42 04.960-00 47 58.89         20.44wUEX036F52
     K20X00R  C2020 12 04.22369821 42 08.125-00 48 04.92         20.54wUEX036F52
     K20X00R  C2020 12 04.23515921 42 11.290-00 48 10.67         20.49wUEX036F52
     K20X00R  C2020 12 04.24661921 42 14.445-00 48 16.79         20.35wUEX036F52
     K20X00R KC2020 12 05.01677721 45 54.67 -00 54 59.4          20.1 VuEX036H21
     K20X00R KC2020 12 05.02037521 45 55.69 -00 55 01.0          20.3 VuEX036H21
     K20X00R KC2020 12 05.03901 21 46 01.06 -00 55 11.3          20.0 RqEX036H36
     K20X00R |C2020 12 05.04429 21 46 02.14 -00 54 49.7          20.5 VuEX036807
     K20X00R |C2020 12 05.04896 21 46 03.45 -00 54 52.1          20.5 VuEX036807
     K20X00R |C2020 12 05.05333 21 46 04.68 -00 54 54.2          20.5 VuEX036807
     K20X00R KC2020 12 05.05670021 46 06.30 -00 55 18.1          20.20GVEX036I52
     K20X00R KC2020 12 05.05795821 46 06.67 -00 55 19.0          20.30GVEX036I52
     K20X00R KC2020 12 05.05921621 46 07.03 -00 55 19.3          20.15GVEX036I52
     K20X00R KC2020 12 05.06047421 46 07.37 -00 55 20.2          20.28GVEX036I52
     K20X00R KC2020 12 05.06220 21 46 07.66 -00 55 22.4          20.0 RqEX036H36
     K20X00R KC2020 12 05.08077 21 46 12.90 -00 55 31.5          20.1 RqEX036H36
     K20X00R KC2020 12 05.08306721 46 13.94 -00 55 36.5          20.2 VqEX036U55
     K20X00R KC2020 12 05.09480921 46 17.26 -00 55 42.0          20.5 VqEX036U55
     K20X00R KC2020 12 06.00721321 50 43.60 -01 03 41.7          20.4 VuEX036H21
     K20X00R KC2020 12 06.01007221 50 44.44 -01 03 43.7          20.6 VuEX036H21
     K20X00R KC2020 12 06.02119 21 50 47.83 -01 03 50.0          20.1 RqEX036H36
     K20X00R KC2020 12 06.03383 21 50 51.36 -01 03 55.6          19.7 RqEX036H36
     K20X00R mC2020 12 06.06724421 51 01.31 -01 04 12.3          21.14GVEX036I52
     K20X00R mC2020 12 06.06801121 51 01.53 -01 04 12.5          20.27GVEX036I52
     K20X00R mC2020 12 06.06877821 51 01.77 -01 04 12.9          20.20GVEX036I52
     K20X00R mC2020 12 06.06954421 51 01.98 -01 04 13.4          20.42GVEX036I52
     K20X00R  C2020 12 06.09206 21 51 08.47 -01 04 25.2          20.2 VoEX036691
     K20X00R  C2020 12 06.10290 21 51 11.61 -01 04 31.1          20.3 VoEX036691
     K20X00R  C2020 12 06.11375 21 51 14.72 -01 04 34.9          20.1 VoEX036691
     K20X00R KC2020 12 07.01985 21 55 46.30 -01 12 51.9          19.9 RqEX036H36
     K20X00R KC2020 12 07.04529 21 55 53.78 -01 13 05.3          20.1 RqEX036H36
     K20X00R mC2020 12 07.05599221 55 57.22 -01 13 09.3          20.56GVEX036I52
     K20X00R mC2020 12 07.05676021 55 57.45 -01 13 10.2          20.73GVEX036I52
     K20X00R mC2020 12 07.05752721 55 57.67 -01 13 10.5          19.86GVEX036I52
     K20X00R KC2020 12 07.05800 21 55 57.60 -01 13 11.9          20.0 RqEX036H36
     K20X00R mC2020 12 07.05829521 55 57.92 -01 13 10.9          20.13GVEX036I52
     K20X00R |C2020 12 07.06567 21 55 59.42 -01 12 52.5          20.3 VuEX036807
     K20X00R |C2020 12 07.06964 21 56 00.59 -01 12 54.5          20.5 VuEX036807
     K20X00R |C2020 12 07.07374 21 56 01.80 -01 12 57.1          20.6 VuEX036807

Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer T. H. Bressi.  0.9-m
    f/3 reflector + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, T. Lowe, A.
    Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L.
    Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y.
    Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
    astrograph + CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  Measurers
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
    Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m reflector +
    CCD.
U55 Golden Ears Observatory, Maple Ridge.  Observer B. Kumar.  0.36-m f/7
    Schmidt-Cassegrain + CCD.

Orbital elements:
2020 XR                                             PHA, Earth MOID = 0.0001 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M   2.09944              (2000.0)            P               Q
n   0.24995679     Peri.  163.01823     +0.59622492     -0.77046282
a   2.4958937      Node   249.80593     +0.70581991     +0.63697188
e   0.6114384      Incl.   13.90979     +0.38253639     +0.02557064
P   3.94           H   19.6           G   0.15           U   8
Residuals in seconds of arc
201204 F52  0.0   0.4+    201205 I52  0.1+  0.4-    201206 691  0.3-  0.0
201204 F52  0.1+  0.2+    201205 H36  0.6+  0.1+    201206 691  0.2-  0.1-
201204 F52  0.1+  0.2+    201205 H36  0.3+  0.7+    201206 691  0.7-  1.9+
201204 F52  0.1-  0.1-    201205 U55  1.2-  0.3-    201207 H36  0.5+  0.4-
201205 H21  0.0   0.3-    201205 U55  1.3-  0.3+    201207 H36  0.3-  0.2+
201205 H21  0.0   0.0     201206 H21  0.2+  0.2+    201207 I52  0.0   0.2+
201205 H36  0.2-  0.8-    201206 H21  0.4+  0.2-    201207 I52  0.1+  0.3-
201205 807  0.4+  0.0     201206 H36  1.1+  0.8-    201207 I52  0.0   0.2-
201205 807  0.2+  0.0     201206 H36  0.7-  0.4+    201207 H36  0.4+  0.5+
201205 807  0.0   0.2+    201206 I52  0.1+  0.3-    201207 I52  0.3+  0.2-
201205 I52  0.0   0.2-    201206 I52  0.0   0.0     201207 807  0.0   0.0
201205 I52  0.2+  0.5-    201206 I52  0.3+  0.0     201207 807  0.3-  0.1+
201205 I52  0.3+  0.1-    201206 I52  0.2+  0.1-    201207 807  0.5-  0.2-

Ephemeris:
2020 XR                  a,e,i = 2.50, 0.61, 14                  q = 0.9698
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 07    20 07 29.9 +02 03 27   0.5697  1.0593    80.6    67.4    20.9
...
2020 11 22    20 52 11.3 +00 40 01   0.4930  0.9958    76.5    74.7    20.7
...
2020 11 30    21 23 13.5 -00 14 13   0.4484  0.9769    75.6    78.0    20.5
...
2020 12 06    21 50 41.6 -01 03 24   0.4155  0.9705    75.7    79.7    20.4
2020 12 07    21 55 40.4 -01 12 26   0.4102  0.9701    75.8    80.0    20.4
2020 12 08    22 00 46.5 -01 21 44   0.4049  0.9698    75.9    80.2    20.4
...
2020 12 14    22 34 08.0 -02 22 32   0.3756  0.9726    77.2    80.7    20.2
...
2020 12 22    23 26 24.1 -03 53 23   0.3447  0.9868    80.4    79.4    20.0
...
2021 01 06    01 23 09.0 -06 17 45   0.3288  1.0430    91.1    70.5    19.7

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X36




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