[Iaude] MPEC X183: 2021 XB5 [a=1.85,e=0.51,i=15.6,H=25.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 10 13:51:39 EST 2021


M.P.E.C. 2021-X183                            Issued 2021 December 10, 18:50 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 XB5                                    


Observations:
     K21X05B* C2021 12 09.34465305 51 37.09 -10 37 52.5          18.93GVEX183703
     K21X05B  C2021 12 09.35025905 51 38.71 -10 38 47.4          18.57GVEX183703
     K21X05B  C2021 12 09.35586205 51 40.22 -10 39 44.4          18.85GVEX183703
     K21X05B  C2021 12 09.36147105 51 41.80 -10 40 41.0          19.36GVEX183703
     K21X05B mC2021 12 09.38169205 51 47.60 -10 43 59.9          18.91GVEX183I52
     K21X05B mC2021 12 09.38193905 51 47.67 -10 44 01.9          19.10GVEX183I52
     K21X05B mC2021 12 09.38368305 51 48.18 -10 44 18.9          18.42GVEX183I52
     K21X05B mC2021 12 09.40067405 51 53.00 -10 47 03.8          18.46GVEX183I52
     K21X05B mC2021 12 09.40092005 51 53.07 -10 47 06.1          19.05GVEX183I52
     K21X05B mC2021 12 09.40119005 51 53.15 -10 47 08.7          19.04GVEX183I52
     K21X05B KC2021 12 09.44010 05 52 03.94 -10 53 15.2          18.8 GVEX183V21
     K21X05B KC2021 12 09.45700 05 52 09.04 -10 55 54.7          19.4 GVEX183V21
     K21X05B KC2021 12 09.99691 05 55 18.34 -12 11 32.2          19.3 GVEX183204
     K21X05B KC2021 12 10.00923 05 55 20.95 -12 13 01.4                VEX183204
     K21X05B KC2021 12 10.23636905 56 26.50 -12 38 45.7          20.4 VuEX183H21
     K21X05B KC2021 12 10.24004705 56 27.18 -12 39 10.1                uEX183H21
     K21X05B KC2021 12 10.24617705 56 28.29 -12 39 50.1                uEX183H21
     K21X05B KC2021 12 10.52760 05 57 35.78 -13 03 54.3          19.6 RqEX183E94
     K21X05B KC2021 12 10.53805 05 57 37.42 -13 04 55.3          19.7 RqEX183E94
     K21X05B KC2021 12 10.54842 05 57 38.97 -13 05 54.8          19.7 RqEX183E94
     K21X05B KC2021 12 10.55777 05 57 40.45 -13 06 49.7          19.7 RqEX183E94

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
703 Catalina Sky Survey.  Observer D. Rankin.  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.  0.68-m Schmidt + 10K CCD.
E94 Possum Observatory, Gisborne.  Observer J. Drummond.  0.41-m f/4.5
    Newtonian reflector + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.81-m f/4.0 astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  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.
V21 Cewanee Observatory at DSNM.  Observer D. T. Durig.  0.4-m f/8 Ritchey-
    Chretien + 4656x3520 CCD.

Orbital elements:
2021 XB5                                                 Earth MOID = 0.0063 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  30.44703              (2000.0)            P               Q                  
n   0.39311112     Peri.  138.21801     +0.82160960     -0.50771493             
a   1.8455501      Node   254.07536     +0.42493799     +0.84857229             
e   0.5077564      Incl.   15.63698     +0.37998075     +0.14883084             
P   2.51           H   25.45          G   0.15           U   8                  
Residuals in seconds of arc
211209 703  0.2+  0.1-    211209 I52  0.1-  0.3-    211210 H21  0.1-  0.2-
211209 703  0.6+  1.1+    211209 I52  0.1-  0.2-    211210 H21  0.0   0.4-
211209 703  0.6-  0.0     211209 I52  0.1-  0.1-    211210 H21  0.1+  0.2-
211209 703  0.8-  0.9-    211209 V21  0.4+  0.5+    211210 E94  0.1-  0.4+
211209 I52  0.0   0.6-    211209 V21  1.4+  1.5-    211210 E94  0.2+  0.2+
211209 I52  0.0   0.2-    211209 204  0.0   0.1+    211210 E94  0.5-  0.5+
211209 I52  0.1+  0.1-    211210 204  0.0   0.2+    211210 E94  0.1+  0.8-

Ephemeris:
2021 XB5                 a,e,i = 1.85, 0.51, 16                  q = 0.9085
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 10    18 14 04.5 +20 43 21   0.1976  0.9102    60.7   108.4    25.8
...
2021 11 25    18 26 31.1 +24 31 02   0.08284 0.9449    57.2   118.6    24.7
...
2021 12 03    19 00 26.2 +35 17 29   0.02158 0.9775    66.7   112.1    21.4
...
2021 12 09    05 49 09.7 -09 30 33   0.02674 1.0072   145.8    33.4    19.0
2021 12 10    05 55 18.4 -12 08 13   0.03436 1.0125   143.0    35.8    19.6
2021 12 11    05 59 15.5 -13 47 00   0.04205 1.0180   141.4    37.1    20.1
...
2021 12 17    06 08 23.8 -17 17 32   0.08882 1.0524   138.7    38.1    21.8
...
2021 12 25    06 11 21.3 -17 47 34   0.1524  1.1028   138.8    36.0    23.0
...
2022 01 09    06 13 54.9 -15 50 23   0.2783  1.2066   138.7    32.5    24.5

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X183




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