[Iaude] MPEC X204: 2021 XQ5 [a=1.82,e=0.51,i=4.5,H=27.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 12 08:16:37 EST 2021


M.P.E.C. 2021-X204                            Issued 2021 December 12, 13:15 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 XQ5                                    


Observations:
     K21X05Q  C2021 12 08.27416 04 12 22.20 +25 16 26.6          21.4 GVEX204G96
     K21X05Q  C2021 12 08.27977 04 12 23.41 +25 16 04.6          21.9 GVEX204G96
     K21X05Q* C2021 12 09.27535304 17 35.25 +24 03 31.9          21.27GVEX204G96
     K21X05Q  C2021 12 09.28097504 17 36.84 +24 03 03.9          21.81GVEX204G96
     K21X05Q  C2021 12 09.28657504 17 38.34 +24 02 36.0          21.24GVEX204G96
     K21X05Q  C2021 12 09.29217304 17 39.94 +24 02 07.2          21.33GVEX204G96
     K21X05Q KC2021 12 09.36618704 18 01.19 +23 55 43.2          21.65GVEX204G96
     K21X05Q KC2021 12 09.36784304 18 01.67 +23 55 33.7          22.04GVEX204G96
     K21X05Q KC2021 12 09.36950104 18 02.14 +23 55 25.6          21.64GVEX204G96
     K21X05Q KC2021 12 09.37115904 18 02.65 +23 55 16.3          21.41GVEX204G96
     K21X05Q KC2021 12 12.17286404 43 52.22 +17 32 06.5                uEX204H21
     K21X05Q KC2021 12 12.17427804 43 53.27 +17 31 48.3                uEX204H21
     K21X05Q KC2021 12 12.17990304 43 57.37 +17 30 35.6          20.7 VuEX204H21
     K21X05Q KC2021 12 12.18987504 44 04.64 +17 28 25.7          20.4 VuEX204H21

Observer details:
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  Measurers B. Gray, D.
    Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.

Orbital elements:
2021 XQ5                                                 Earth MOID = 0.0102 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M   0.87619              (2000.0)            P               Q                  
n   0.40239405     Peri.  231.30169     -0.63118225     -0.77183954             
a   1.8170562      Node   258.00925     +0.73373743     -0.56213372             
e   0.5083164      Incl.    4.49332     +0.25147237     -0.29710167             
P   2.45           H   27.77          G   0.15           U   8                  
Residuals in seconds of arc
211208 G96  0.2-  0.2+    211209 G96  0.4+  0.5-    211212 H21  0.1-  0.0
211208 G96  0.2+  0.2-    211209 G96  0.3+  0.1+    211212 H21  0.2+  0.1+
211209 G96  0.3+  0.1-    211209 G96  0.1+  0.5-    211212 H21  0.1+  0.1+
211209 G96  0.7+  0.1-    211209 G96  0.2-  0.2+    211212 H21  0.1-  0.2-
211209 G96  0.1-  0.2+    211209 G96  0.1-  0.3-

Ephemeris:
2021 XQ5                 a,e,i = 1.82, 0.51, 4                   q = 0.8934
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 12    03 44 32.7 +30 43 58   0.2331  1.2161   164.5    12.6    25.8
...
2021 11 27    03 50 36.4 +30 06 03   0.1240  1.1091   169.9     9.0    24.1
...
2021 12 05    04 01 25.3 +27 45 23   0.07213 1.0564   168.7    10.5    22.8
...
2021 12 11    04 30 25.0 +20 58 22   0.03561 1.0199   170.3     9.4    21.2
2021 12 12    04 41 28.3 +18 10 18   0.02985 1.0141   170.6     9.1    20.8
2021 12 13    04 57 07.4 +13 59 58   0.02429 1.0084   169.4    10.4    20.4
...
2021 12 19    12 25 09.5 -49 22 05   0.01923 0.9764    66.4   112.6    23.5
...
2021 12 27    14 49 43.5 -39 38 25   0.06545 0.9404    47.4   129.6    27.4
...
2022 01 11    15 26 58.6 -36 01 05   0.1581  0.8992    53.8   118.0    28.2

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X204




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