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  • MPEC 2021-A22 : 2021 AJ

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    M.P.E.C. 2021-A22                               Issued 2021 January 4, 22:44 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 AJ                                 
    
    
    Observations:
         K21A00J* C2021 01 02.21656306 42 24.78 +50 19 59.3          20.20GVEA022G96
         K21A00J  C2021 01 02.22189906 42 21.36 +50 18 46.9          19.94GVEA022G96
         K21A00J  C2021 01 02.22722806 42 17.99 +50 17 33.9          19.98GVEA022G96
         K21A00J  C2021 01 02.23256006 42 14.58 +50 16 20.6          20.74GVEA022G96
         K21A00J KC2021 01 02.32648306 41 12.49 +49 53 50.3          20.03GVEA022I52
         K21A00J KC2021 01 02.32816406 41 11.40 +49 53 25.1          19.93GVEA022I52
         K21A00J KC2021 01 02.32984506 41 10.26 +49 53 00.0          20.21GVEA022I52
         K21A00J KC2021 01 02.33152806 41 09.04 +49 52 35.4          19.60GVEA022I52
         K21A00J  C2021 01 04.27514106 18 48.65 +36 12 38.8          18.75GVEA022G96
         K21A00J  C2021 01 04.28550406 18 36.97 +36 05 21.4          18.91GVEA022G96
         K21A00J  C2021 01 04.29068506 18 31.19 +36 01 42.5          18.77GVEA022G96
         K21A00J KC2021 01 04.86294806 09 05.08 +27 49 16.6          18.6 GVEA022L01
         K21A00J KC2021 01 04.86340806 09 04.49 +27 48 48.3          18.4 GVEA022L01
         K21A00J KC2021 01 04.86386106 09 03.89 +27 48 20.8          18.4 GVEA022L01
         K21A00J hC2021 01 04.86660406 09 00.36 +27 45 31.6          18.5 GVEA022L01
         K21A00J hC2021 01 04.86705906 08 59.76 +27 45 03.1          18.6 GVEA022L01
         K21A00J KC2021 01 04.91155606 08 08.81 +26 58 28.7          18.5 GVEA022I93
         K21A00J KC2021 01 04.91575006 08 03.30 +26 54 01.2          18.3 GVEA022I93
         K21A00J KC2021 01 04.91833206 07 59.90 +26 51 16.6          18.3 GVEA022I93
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  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, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m reflector +
        CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2021 AJ                                                  Earth MOID = 0.0103 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pan                     
    M 311.40248              (2000.0)            P               Q                  
    n   0.68519153     Peri.  248.19395     -0.95398121     -0.11260711             
    a   1.2742698      Node   284.46696     +0.23215528     -0.86397282             
    e   0.3425126      Incl.   16.67968     -0.18979930     -0.49078570             
    P   1.44           H   26.73          G   0.15           U   7                  
    Residuals in seconds of arc
    210102 G96  0.1+  0.1-    210102 I52 (0.7-  0.9+)   210104 L01  0.2+  0.1+
    210102 G96  0.3-  0.1+    210104 G96 (1.1+  1.1+)   210104 L01  0.0+  0.4-
    210102 G96  0.0-  0.0-    210104 G96  0.2-  0.3-    210104 I93  0.2+  0.1-
    210102 G96  0.0+  0.1-    210104 G96  0.0-  0.3+    210104 I93  0.1+  0.5-
    210102 I52  0.1-  0.1-    210104 L01  0.6+  0.2+    210104 I93  0.0+  0.2-
    210102 I52  0.3+  0.0-    210104 L01  0.6+  0.1+
    210102 I52  0.1+  0.1+    210104 L01  0.3+  0.5+
    
    Ephemeris:
    2021 AJ                  a,e,i = 1.27, 0.34, 17                  q = 0.8378
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 12 05    07 16 30.3 +62 07 33   0.2473  1.1676   132.8    38.3    25.6
    ...
    2020 12 20    07 20 41.8 +62 30 03   0.1303  1.0844   138.2    37.2    24.0
    ...
    2020 12 28    07 08 21.8 +59 39 29   0.07070 1.0406   142.9    34.7    22.5
    ...
    2021 01 03    06 34 51.9 +46 37 28   0.02781 1.0087   155.9    23.5    20.1
    2021 01 04    06 22 48.6 +39 09 01   0.02125 1.0035   161.9    17.7    19.3
    2021 01 05    06 06 17.9 +25 25 27   0.01543 0.9983   166.7    13.1    18.4
    ...
    2021 01 11    23 31 21.2 -78 04 30   0.03478 0.9680    62.7   115.5    23.9
    ...
    2021 01 19    20 36 16.1 -72 32 35   0.09203 0.9306    52.4   123.2    26.5
    ...
    2021 02 03    20 06 54.4 -66 58 36   0.2017  0.8738    51.3   118.3    27.7
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-A22
    


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