[Iaude] MPEC X28: 2020 XK [a=2.24,e=0.52,i=8.1,H=25.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 6 05:25:16 EST 2020


M.P.E.C. 2020-X28                              Issued 2020 December 6, 10:24 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 XK                                     


Observations:
     K20X00K* C2020 12 04.39718204 37 34.52 +17 40 48.3          20.47GVEX028G96
     K20X00K  C2020 12 04.40243004 37 36.12 +17 41 22.6          20.35GVEX028G96
     K20X00K  C2020 12 04.40768304 37 37.79 +17 41 56.9          20.56GVEX028G96
     K20X00K HC2020 12 04.48097404 38 00.97 +17 50 00.4                VEX028G96
     K20X00K HC2020 12 04.48155404 38 01.18 +17 50 04.3                VEX028G96
     K20X00K HC2020 12 04.48444604 38 02.14 +17 50 24.1          20.77GVEX028G96
     K20X00K  C2020 12 04.49822304 38 09.152+17 52 27.39         20.23GVEX028F52
     K20X00K  C2020 12 04.50921404 38 12.527+17 53 40.87         19.91GVEX028F52
     K20X00K  C2020 12 04.52022804 38 15.872+17 54 54.16         20.57GVEX028F52
     K20X00K KC2020 12 05.13674204 41 57.40 +19 04 30.4          19.61GVEX028I52
     K20X00K KC2020 12 05.13800304 41 57.81 +19 04 39.7          19.75GVEX028I52
     K20X00K KC2020 12 05.13926404 41 58.21 +19 04 48.5          19.99GVEX028I52
     K20X00K KC2020 12 05.14052504 41 58.64 +19 04 57.6          20.05GVEX028I52
     K20X00K KC2020 12 05.37447 04 43 14.52 +19 32 04.8          20.4 RoEX028691
     K20X00K KC2020 12 05.38890 04 43 19.27 +19 33 44.1          20.7 RoEX028691
     K20X00K KC2020 12 06.13893704 48 00.64 +21 01 32.2          20.5 VuEX028H21
     K20X00K KC2020 12 06.14185104 48 01.66 +21 01 53.1          20.5 VuEX028H21
     K20X00K KC2020 12 06.14486504 48 02.67 +21 02 15.3          20.4 VuEX028H21
     K20X00K KC2020 12 06.18584704 48 19.05 +21 07 15.2          20.07GVEX028I52
     K20X00K KC2020 12 06.18683604 48 19.37 +21 07 22.2          19.79GVEX028I52
     K20X00K KC2020 12 06.18782904 48 19.74 +21 07 29.7          19.65GVEX028I52
     K20X00K KC2020 12 06.18882004 48 20.07 +21 07 36.8          19.81GVEX028I52

Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer T. H. Bressi.  0.9-m
    f/3 reflector + 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.
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + 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.

Orbital elements:
2020 XK                                                  Earth MOID = 0.0847 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 359.43775              (2000.0)            P               Q                  
n   0.29386958     Peri.   13.20899     +0.03480425     -0.99011914             
a   2.2406101      Node    74.92227     +0.90366444     -0.02687220             
e   0.5246182      Incl.    8.08744     +0.42682460     +0.13762984             
P   3.35           H   25.14          G   0.15           U   8                  
Residuals in seconds of arc
201204 G96  0.7-  0.1+    201204 F52  0.0+  0.4+    201206 H21  0.2+  0.0+
201204 G96  1.0-  0.3-    201205 I52  0.3-  0.8+    201206 H21  0.4-  0.5+
201204 G96  0.4-  0.8-    201205 I52  0.4-  1.2+    201206 I52  0.1-  0.1-
201204 G96  0.8-  0.6-    201205 I52  0.7-  1.2+    201206 I52  0.5-  0.3-
201204 G96  0.5-  0.5-    201205 I52  0.6-  1.4+    201206 I52  0.2-  0.0+
201204 G96  0.2-  0.3+    201205 691  0.1-  0.6-    201206 I52  0.4-  0.1-
201204 F52  0.1+  0.1-    201205 691  0.4+  0.4-
201204 F52  0.5+  0.3+    201206 H21  0.1+  0.2+

Ephemeris:
2020 XK                  a,e,i = 2.24, 0.52, 8                   q = 1.0651
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 06    03 22 03.5 -07 05 37   0.2050  1.1805   155.2    20.6    23.1
...
2020 11 21    03 47 11.9 -00 00 43   0.1356  1.1164   160.1    17.5    22.0
...
2020 11 29    04 12 03.9 +08 48 57   0.1078  1.0917   167.2    11.6    21.2
...
2020 12 05    04 41 04.3 +18 49 18   0.09300 1.0782   176.3     3.4    20.5
2020 12 06    04 47 05.3 +20 45 34   0.09120 1.0764   178.1     1.8    20.3
2020 12 07    04 53 29.7 +22 45 26   0.08962 1.0748   179.6     0.4    20.1
...
2020 12 13    05 41 02.4 +35 15 00   0.08502 1.0675   167.2    11.8    20.6
...
2020 12 21    07 07 15.1 +48 33 53   0.09211 1.0654   151.3    26.3    21.3
...
2021 01 05    09 31 25.9 +54 41 30   0.1323  1.0848   137.7    37.6    22.4

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X28




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