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  • MPEC 2021-B130 : 2021 AH8

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    M.P.E.C. 2021-B130                             Issued 2021 January 25, 04:10 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 AH8                                 
    
    
    Observations:
         K21A08H* C2021 01 05.25805706 21 45.26 +15 32 17.0          19.24GVEB130G96
         K21A08H  C2021 01 05.26320206 21 50.03 +15 33 26.4          19.37GVEB130G96
         K21A08H  C2021 01 05.26835506 21 54.70 +15 34 33.9          18.92GVEB130G96
         K21A08H  C2021 01 05.27349406 21 59.22 +15 35 39.2          19.33GVEB130G96
         K21A08H KC2021 01 05.29986106 22 21.03 +15 40 49.8          19.23GVEB130I52
         K21A08H KC2021 01 05.30487406 22 24.95 +15 41 44.6          19.01GVEB130I52
         K21A08H  C2021 01 06.24897 06 29 07.95 +16 41 03.1          22.1 GVEB130G96
         K21A08H  C2021 01 06.25243 06 29 07.90 +16 41 08.4                VEB130G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observers G. J. Leonard, 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, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos, B. Gray.  1.5-m
        reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
        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, T. A.
        Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
        reflector + CCD.
    
    Orbital elements:
    2021 AH8                                                 Earth MOID = 0.0002 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
    M   8.50049              (2000.0)            P               Q                  
    n   0.33492482     Peri.   76.17833     +0.99414726     -0.00861305             
    a   2.0535463      Node   284.23302     -0.03768237     +0.90656705             
    e   0.7819612      Incl.    6.37872     +0.10124853     +0.42197392             
    P   2.94           H   29.59          G   0.15           U   8                  
    Residuals in seconds of arc
    210105 G96  0.0-  0.0+    210105 G96  0.1-  0.3-    210106 G96  0.1+  0.2-
    210105 G96  0.0+  0.2+    210105 I52  0.1-  0.1-    210106 G96  0.1-  0.2+
    210105 G96  0.1+  0.0+    210105 I52  0.1+  0.2+
    
    Ephemeris:
    2021 AH8                 a,e,i = 2.05, 0.78, 6                   q = 0.4478
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 12 26    18 28 38.8 -16 43 45   0.1472  0.8375     7.0   171.8
    ...
    2021 01 10    06 31 37.8 +17 05 07   0.07728 1.0587   166.5    12.5    24.9
    ...
    2021 01 18    06 33 14.8 +17 15 38   0.1987  1.1718   159.3    17.2    27.3
    ...
    2021 01 24    06 35 00.2 +17 22 18   0.2930  1.2540   153.9    20.2    28.4
    2021 01 25    06 35 21.7 +17 23 24   0.3091  1.2675   153.0    20.7    28.6
    2021 01 26    06 35 44.4 +17 24 29   0.3252  1.2809   152.1    21.1    28.7
    ...
    2021 02 01    06 38 23.7 +17 30 51   0.4242  1.3600   146.7    23.4    29.5
    ...
    2021 02 09    06 42 57.3 +17 38 23   0.5624  1.4620   139.8    25.8    30.3
    ...
    2021 02 24    06 54 27.0 +17 47 02   0.8406  1.6429   127.5    28.5    31.5
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-B130
    


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