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  • MPEC 2021-X210 : 2021 XY5

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    M.P.E.C. 2021-X210                            Issued 2021 December 13, 02:15 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2021 XY5                                 
    
    
    Observations:
         K21X05Y* C2021 12 09.17855302 15 41.63 +23 45 08.0          22.58GVEX210G96
         K21X05Y  C2021 12 09.18424402 15 40.87 +23 45 02.6          21.27GVEX210G96
         K21X05Y  C2021 12 09.18992602 15 40.08 +23 44 56.0          21.34GVEX210G96
         K21X05Y  C2021 12 09.19561602 15 39.28 +23 44 50.0          21.41GVEX210G96
         K21X05Y KC2021 12 09.26537902 15 29.66 +23 43 25.6          21.23GVEX210V06
         K21X05Y KC2021 12 09.27173202 15 28.79 +23 43 18.0          21.24GVEX210V06
         K21X05Y KC2021 12 09.27808502 15 27.92 +23 43 10.3          21.10GVEX210V06
         K21X05Y KC2021 12 12.21683202 09 21.41 +22 42 33.7          20.85GVEX210G96
         K21X05Y KC2021 12 12.21869302 09 21.16 +22 42 31.5          21.01GVEX210G96
         K21X05Y KC2021 12 12.22055402 09 20.88 +22 42 29.4          20.82GVEX210G96
         K21X05Y KC2021 12 12.22241502 09 20.66 +22 42 26.6          20.90GVEX210G96
         K21X05Y KC2021 12 13.06607702 07 39.48 +22 24 01.7          22.34GVEX210I52
         K21X05Y KC2021 12 13.06914302 07 39.30 +22 23 59.7                VEX210I52
         K21X05Y KC2021 12 13.07221102 07 38.64 +22 23 54.6          21.20GVEX210I52
         K21X05Y KC2021 12 13.07527902 07 38.31 +22 23 51.0          21.36GVEX210I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observers R. A. Kowalski, 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 XY5                                                 Earth MOID = 0.0094 AU
    Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
    M 355.20909              (2000.0)            P               Q                  
    n   0.27030652     Peri.  221.10251     -0.74951727     -0.65704579             
    a   2.3689998      Node   277.63373     +0.62666525     -0.66493984             
    e   0.6118258      Incl.    4.67108     +0.21334133     -0.35517016             
    P   3.65           H   22.59          G   0.15           U   9                  
    Residuals in seconds of arc
    211209 G96  0.3-  1.6-    211209 V06  0.1+  0.0     211212 G96  0.0   0.0
    211209 G96  0.0   0.2-    211209 V06  0.1+  0.1+    211213 I52  0.0   0.8-
    211209 G96  0.0   0.1-    211212 G96  0.0   0.3-    211213 I52 (3.2+  1.1+)
    211209 G96  0.2-  0.6+    211212 G96  0.0   0.0     211213 I52  0.4-  0.0
    211209 V06  0.1+  0.1-    211212 G96  0.3-  0.4+    211213 I52  0.6+  0.3+
    
    Ephemeris:
    2021 XY5                 a,e,i = 2.37, 0.61, 5                   q = 0.9196
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 11 13    03 07 42.9 +28 39 49   0.4627  1.4467   169.2     7.4    22.3
    ...
    2021 11 28    02 39 46.5 +26 44 37   0.3512  1.3182   157.6    16.6    21.8
    ...
    2021 12 06    02 22 30.0 +24 44 34   0.3056  1.2513   146.3    25.9    21.7
    ...
    2021 12 12    02 09 48.7 +22 47 20   0.2764  1.2025   137.3    33.7    21.6
    2021 12 13    02 07 46.4 +22 25 38   0.2718  1.1946   135.8    35.1    21.6
    2021 12 14    02 05 45.8 +22 03 21   0.2674  1.1866   134.3    36.4    21.6
    ...
    2021 12 20    01 54 21.7 +19 37 03   0.2418  1.1403   125.1    44.9    21.5
    ...
    2021 12 28    01 41 00.7 +15 45 38   0.2100  1.0825   112.9    56.8    21.4
    ...
    2022 01 12    01 18 25.9 +05 22 27   0.1511  0.9916    88.7    82.5    21.4
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X210
    


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