• MPC Preparation (Info)

  • MPEC 2021-X18 : 2021 WF5

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    M.P.E.C. 2021-X18                              Issued 2021 December 1, 13:03 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 WF5                                 
    
    
    Observations:
         K21W05F*HC2021 11 30.19603902 59 58.70 +14 21 43.4          20.22GVEX018G96
         K21W05F HC2021 11 30.20161403 00 02.82 +14 19 03.9                VEX018G96
         K21W05F HC2021 11 30.20718703 00 06.89 +14 16 25.6                VEX018G96
         K21W05F HC2021 11 30.21274903 00 10.97 +14 13 47.0                VEX018G96
         K21W05F KC2021 11 30.26596003 00 49.61 +13 48 30.9          20.84GVEX018V06
         K21W05F KC2021 11 30.26690703 00 50.28 +13 48 03.6          20.53GVEX018V06
         K21W05F KC2021 11 30.26785503 00 50.96 +13 47 36.6          20.32GVEX018V06
         K21W05F KC2021 11 30.26880303 00 51.67 +13 47 09.6          20.12GVEX018V06
         K21W05F KC2021 11 30.37216703 02 07.31 +12 58 01.3          21.26GVEX018I52
         K21W05F KC2021 11 30.37329503 02 08.23 +12 57 29.8          20.68GVEX018I52
         K21W05F KC2021 11 30.37442203 02 09.02 +12 56 57.0          20.05GVEX018I52
         K21W05F KC2021 12 01.14777803 12 27.49 +07 03 09.0          20.37GVEX018I52
         K21W05F KC2021 12 01.14847903 12 27.98 +07 02 50.9          20.29GVEX018I52
         K21W05F KC2021 12 01.14918103 12 28.45 +07 02 32.1          20.24GVEX018I52
         K21W05F KC2021 12 01.14988403 12 28.91 +07 02 13.3          19.99GVEX018I52
    
    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.
    V06 Catalina Sky Survey-Kuiper.  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.  1.55-m reflector + 1K CCD.
    
    Orbital elements:
    2021 WF5                                                 Earth MOID = 0.0298 AU
    Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
    M  47.59790              (2000.0)            P               Q                  
    n   0.74706510     Peri.  167.96480     +0.56852452     -0.78655072             
    a   1.2029025      Node   246.91960     +0.73137985     +0.61741558             
    e   0.1578940      Incl.   15.19187     +0.37664757     -0.01166062             
    P   1.32           H   27.05          G   0.15           U   7                  
    Residuals in seconds of arc
    211130 G96  0.4-  0.5+    211130 V06  0.1-  0.0     211130 I52  0.2-  0.3-
    211130 G96  0.1+  0.3-    211130 V06  0.2-  0.0     211201 I52  0.4-  0.2-
    211130 G96  0.0   0.1+    211130 V06  0.0   0.0     211201 I52  0.1+  0.3+
    211130 G96  0.2+  0.1-    211130 I52  0.5-  0.3-    211201 I52  0.1+  0.0
    211130 V06  0.1+  0.2+    211130 I52  0.6+  0.4+    211201 I52  0.1+  0.1-
    
    Ephemeris:
    2021 WF5                 a,e,i = 1.20, 0.16, 15                  q = 1.0130
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 11 01    19 29 25.3 +65 56 37   0.1351  1.0193    97.6    74.9    25.4
    ...
    2021 11 16    21 31 57.8 +68 17 03   0.07036 1.0129   108.0    68.2    23.7
    ...
    2021 11 24    00 53 48.7 +56 30 19   0.03968 1.0136   130.6    47.7    21.9
    ...
    2021 11 30    02 57 08.7 +15 57 15   0.03180 1.0160   158.8    20.6    20.6
    2021 12 01    03 10 28.3 +08 11 17   0.03298 1.0166   156.9    22.3    20.7
    2021 12 02    03 22 13.2 +01 05 18   0.03483 1.0172   153.1    26.0    21.0
    ...
    2021 12 08    04 09 46.4 -25 10 07   0.05473 1.0217   130.7    47.0    22.6
    ...
    2021 12 16    04 41 50.6 -37 01 27   0.08978 1.0300   118.5    57.1    23.9
    ...
    2021 12 31    05 10 32.2 -42 04 26   0.1584  1.0520   111.6    60.4    25.3
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X18
    


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