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  • MPEC 2021-X64 : 2021 XW

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    M.P.E.C. 2021-X64                              Issued 2021 December 3, 10:35 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                     2021 XW                                 
    
    
    Observations:
         K21X00W* C2021 12 01.30476606 35 03.28 +39 19 10.8          21.09GVEX064G96
         K21X00W  C2021 12 01.31004306 35 02.90 +39 20 21.1          20.94GVEX064G96
         K21X00W  C2021 12 01.31530806 35 02.64 +39 21 30.6          21.55GVEX064G96
         K21X00W  C2021 12 01.32058306 35 02.19 +39 22 42.1          21.44GVEX064G96
         K21X00W KC2021 12 01.43645806 34 54.23 +39 48 22.4                VEX064I52
         K21X00W KC2021 12 01.44002906 34 54.06 +39 49 09.1          21.20GVEX064I52
         K21X00W KC2021 12 02.24152006 34 18.95 +42 46 00.0          21.09GVEX064I52
         K21X00W KC2021 12 02.24288406 34 18.89 +42 46 18.1          21.33GVEX064I52
         K21X00W KC2021 12 02.24424806 34 18.77 +42 46 36.0          21.17GVEX064I52
         K21X00W KC2021 12 02.24561206 34 18.62 +42 46 54.4          21.39GVEX064I52
         K21X00W KC2021 12 03.33254006 33 11.13 +46 44 28.3                VEX064I52
         K21X00W KC2021 12 03.33554606 33 10.87 +46 45 06.9          21.37GVEX064I52
         K21X00W KC2021 12 03.33704906 33 10.66 +46 45 26.4                VEX064I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  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. 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.
    
    Orbital elements:
    2021 XW                                                  Earth MOID = 0.1467 AU
    Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Bell                    
    M  18.99815              (2000.0)            P               Q                  
    n   0.50114446     Peri.   16.11867     +0.12329273     -0.84556820             
    a   1.5697389      Node    69.31688     +0.83811595     -0.19155185             
    e   0.2844299      Incl.   33.72591     +0.53137610     +0.49831949             
    P   1.97           H   23.95          G   0.15           U   9                  
    Residuals in seconds of arc
    211201 G96  0.3+  0.3+    211201 I52  0.4+  0.3-    211203 I52  0.1+  0.4+
    211201 G96  0.0   0.0     211202 I52  0.0   0.2+    211203 I52  0.4+  0.2-
    211201 G96  1.0+  0.8-    211202 I52  0.4+  0.1+    211203 I52  0.4-  0.3-
    211201 G96  0.3-  0.1+    211202 I52  0.1+  0.2-
    211201 I52  0.5-  0.2+    211202 I52  0.5-  0.0
    
    Ephemeris:
    2021 XW                  a,e,i = 1.57, 0.28, 34                  q = 1.1233
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 11 03    06 24 34.8 -19 08 20   0.3509  1.1767   113.5    50.7    23.9
    ...
    2021 11 18    06 35 15.0 -00 40 11   0.2203  1.1455   131.1    40.6    22.6
    ...
    2021 11 26    06 36 57.6 +20 28 11   0.1743  1.1340   144.9    30.0    21.7
    ...
    2021 12 02    06 34 28.4 +41 52 38   0.1643  1.1281   147.6    28.0    21.5
    2021 12 03    06 33 31.5 +45 31 56   0.1651  1.1273   146.6    28.8    21.6
    2021 12 04    06 32 21.8 +49 07 21   0.1667  1.1266   145.2    29.9    21.6
    ...
    2021 12 10    06 18 14.9 +67 56 31   0.1893  1.1238   133.6    39.4    22.2
    ...
    2021 12 18    04 47 26.4 +83 38 16   0.2428  1.1238   119.5    49.6    23.0
    ...
    2022 01 02    20 33 10.7 +81 12 23   0.3668  1.1350   105.0    56.8    24.1
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X64
    


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