[Iaude] MPEC X143: 2021 XK3 [a=1.74,e=0.48,i=8.9,H=27.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Dec 7 08:56:19 EST 2021


M.P.E.C. 2021-X143                             Issued 2021 December 7, 13:55 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

                                    2021 XK3                                    


Observations:
     K21X03K* C2021 12 05.28731104 43 12.88 -07 07 40.7          20.07GVEX143G96
     K21X03K  C2021 12 05.29702504 43 25.35 -07 07 30.1          20.22GVEX143G96
     K21X03K  C2021 12 05.30270004 43 32.69 -07 07 24.1          20.10GVEX143G96
     K21X03K  C2021 12 05.30840504 43 39.95 -07 07 17.7          19.94GVEX143G96
     K21X03K mC2021 12 05.39095704 45 24.07 -07 05 40.7          19.82GVEX143I52
     K21X03K mC2021 12 05.39165704 45 24.96 -07 05 40.5          20.11GVEX143I52
     K21X03K mC2021 12 05.39200704 45 25.35 -07 05 39.5          20.90GVEX143I52
     K21X03K KC2021 12 06.26494705 01 55.62 -06 50 58.8          20.52GVEX143I52
     K21X03K KC2021 12 06.26696205 01 57.25 -06 50 56.7          20.58GVEX143I52
     K21X03K KC2021 12 06.26897605 01 58.92 -06 50 54.3          20.91GVEX143I52
     K21X03K KC2021 12 06.27099005 02 00.57 -06 50 53.2          20.99GVEX143I52
     K21X03K KC2021 12 07.40392505 16 00.23 -06 34 56.8          20.86GVEX143V06
     K21X03K KC2021 12 07.40640305 16 01.60 -06 34 54.7          20.98GVEX143V06
     K21X03K KC2021 12 07.40887905 16 02.92 -06 34 52.5          21.10GVEX143V06

Observer details:
G96 Mt. Lemmon Survey.  Observer K. W. Wierzchos.  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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K 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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.
V06 Catalina Sky Survey-Kuiper.  Observer H. Groeller.  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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XK3                                                 Earth MOID = 0.0013 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  35.26163              (2000.0)            P               Q                  
n   0.42828896     Peri.  138.52315     +0.88339654     -0.44617026             
a   1.7430565      Node   248.50900     +0.37906213     +0.86014961             
e   0.4791972      Incl.    8.86092     +0.27554029     +0.24713306             
P   2.30           H   27.18          G   0.15           U   7                  
Residuals in seconds of arc
211205 G96  0.3+  0.1+    211205 I52  0.3+  0.4-    211206 I52  0.1-  0.2-
211205 G96  0.4-  0.1+    211205 I52  0.4-  0.2+    211207 V06  0.1-  0.0
211205 G96  0.4+  0.3-    211206 I52  0.4+  0.5-    211207 V06  0.2+  0.1+
211205 G96  0.3-  0.2-    211206 I52  0.2-  0.2-    211207 V06  0.1-  0.1+
211205 I52  0.1+  0.2+    211206 I52  0.0   0.5+

Ephemeris:
2021 XK3                 a,e,i = 1.74, 0.48, 9                   q = 0.9078
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 07    18 20 24.4 +03 53 45   0.1601  0.9117    56.2   115.4    27.5
...
2021 11 22    18 50 10.1 +04 30 48   0.06343 0.9488    50.7   126.3    26.4
...
2021 11 30    21 00 14.1 +00 48 51   0.01488 0.9816    71.0   108.2    22.1
...
2021 12 06    04 57 31.9 -06 52 04   0.02916 1.0109   150.6    28.6    20.8
2021 12 07    05 11 42.4 -06 37 43   0.03532 1.0162   150.5    28.5    21.2
2021 12 08    05 21 37.7 -06 25 35   0.04159 1.0215   150.3    28.5    21.6
...
2021 12 14    05 47 42.3 -05 32 45   0.08033 1.0552   150.7    27.1    23.0
...
2021 12 22    05 58 06.7 -04 28 44   0.1342  1.1041   152.1    24.7    24.2
...
2022 01 06    06 05 20.4 -02 00 27   0.2451  1.2040   151.3    23.1    25.6

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X143




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