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  • MPEC 2023-B61 : 2019 AN2

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    M.P.E.C. 2023-B61                              Issued 2023 January 21, 14:08 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets, routine data on comets and natural satellites,
             and occasional editorial announcements.  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
    
                                    2019 AN2                                 
    
    
                               Revision to MPEC 2019-A60                            
    
    Additional Observations:
         K19A02N  C2023 01 19.50085911 43 29.096+13 27 55.24         21.42GVEB061F52
         K19A02N  C2023 01 19.51225111 43 29.815+13 27 34.49         21.99GVEB061F52
         K19A02N  C2023 01 19.52365911 43 30.543+13 27 13.97         22.27GVEB061F52
         K19A02N KC2023 01 20.39514 11 44 32.70 +13 00 33.8          22.0 RoEB061291
         K19A02N KC2023 01 20.43409 11 44 35.01 +12 59 23.0          22.6 RoEB061291
         K19A02N !C2023 01 21.09209 11 45 20.05 +12 39 27.9          21.5 GVEB061J04
         K19A02N !C2023 01 21.13508 11 45 22.51 +12 38 10.6          21.1 GVEB061J04
    
    Observer details:
    291 LPL/Spacewatch II.  Observer C. Lejoly.  1.8-m f/2.7 reflector + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
        Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M. Huber,
        Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    J04 ESA Optical Ground Station, Tenerife.  Observers P. Ruiz, M. Micheli, F.
        Ocana, L. Conversi.  Measurers R. Kresken, M. Micheli, F. Ocana, A.
        Knofel, M. Busch, E. Schwab.  1.0-m f/4.4 reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    230119 F52 0.04+ 0.04+    230121 J04 0.04+ 0.04+    MPO562915   +0.02 days
    
    Orbital elements:
    2019 AN2                                                 Earth MOID = 0.2166 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M  13.37159              (2000.0)            P               Q                  
    n   0.24901347     Peri.  139.11572     -0.41500520     -0.90851297             
    a   2.5021931      Node   335.28650     +0.80145458     -0.33969903             
    e   0.5258655      Incl.    6.69375     +0.43062888     -0.24332848             
    P   3.96           H   22.60          G   0.15           U   0                  
    Residuals in seconds of arc
    181214 F51  0.3-  0.1+    190112 F51  0.0   0.1+    190130 G96  0.3-  0.3-
    181214 F51  0.1+  0.0     190112 F51  0.1-  0.0     190130 G96  0.1+  0.0
    181214 F51  0.1-  0.0     190112 F51  0.1-  0.1-    190205 F52  0.0   0.0
    190102 F51  0.0   0.0     190114 F51  0.0   0.0     190205 F52  0.0   0.2-
    190102 F51  0.0   0.0     190114 F51  0.0   0.0     190205 F52  0.0   0.0
    190102 F51  0.0   0.0     190114 F51  0.0   0.0     190205 F52  0.1-  0.0
    190102 F51  0.0   0.0     190116 204  0.0   0.3+    190212 I52  0.1-  0.1+
    190102 L01  0.7-  0.1-    190116 204  0.2+  0.0     190212 I52  0.1-  0.1-
    190102 L01  0.4-  0.0     190116 204  0.1+  0.0     190212 I52  0.6-  0.2+
    190102 L01  0.4-  0.4+    190124 703 (2.9+  0.3-)   190228 I52  0.4+  1.0-
    190103 033  0.3+  0.2-    190124 703 (1.8+  0.9-)   190228 I52  0.0   0.2+
    190103 033  0.0   0.2+    190124 703  1.4+  0.7-    190228 I52  0.3-  0.4-
    190103 033  0.4+  0.3-    190124 703  1.4+  1.5+    190228 I52  0.6+  0.1+
    190103 033  0.1-  0.1+    190127 703  1.0-  0.2+    190312 H21  0.3+  0.8+
    190103 033  0.1+  0.0     190127 703  1.1-  1.4+    190312 H21  0.1-  0.4+
    190103 033  0.0   0.0     190127 703  0.1+  0.1+    190312 H21  0.2-  0.3+
    190103 587  0.6-  0.3+    190127 I52  0.2-  0.3-    190316 H21  0.5-  0.4-
    190103 587  0.4-  0.1+    190127 I52  0.2+  0.2+    190316 H21  0.3-  0.6-
    190103 587  0.6-  0.1+    190127 I52  0.0   0.2+    190316 H21  0.3-  1.1-
    190104 568  0.0   0.0     190127 I52  0.1+  0.1-    230119 F52  0.1+  0.0
    190104 568  0.1+  0.0     190128 G96  0.1-  0.1+    230119 F52  0.1-  0.1-
    190109 G96  0.4+  0.1+    190128 G96  0.1+  0.2+    230119 F52  0.0   0.2+
    190109 G96  0.3+  0.2-    190128 G96  0.3+  0.1-    230120 291  0.2+  0.2-
    190109 G96  0.2+  0.9-    190128 G96  0.3-  0.5+    230120 291  0.1+  0.4-
    190109 G96  0.3+  0.8+    190130 G96  0.2+  0.5+    230121 J04  0.1-  0.2+
    190112 F51  0.0   0.0     190130 G96  0.5-  0.1+    230121 J04  0.2+  0.0
    
    Ephemeris:
    2019 AN2                 a,e,i = 2.50, 0.53, 7                   q = 1.1864
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 12 22    10 35 42.7 +28 12 55   0.3539  1.1934   118.4    46.5    22.5
    ...
    2023 01 06    11 19 23.8 +20 34 55   0.3274  1.1871   121.4    45.0    22.3
    ...
    2023 01 14    11 35 28.0 +16 19 31   0.3198  1.1939   124.4    42.8    22.2
    ...
    2023 01 20    11 44 04.2 +13 12 46   0.3168  1.2035   127.5    40.4    22.1
    2023 01 21    11 45 12.9 +12 42 25   0.3166  1.2054   128.1    40.0    22.1
    2023 01 22    11 46 16.6 +12 12 19   0.3164  1.2075   128.7    39.5    22.1
    ...
    2023 01 28    11 50 57.7 +09 18 08   0.3165  1.2220   132.8    36.3    22.0
    ...
    2023 02 05    11 52 57.4 +05 46 36   0.3207  1.2466   139.3    31.1    21.9
    ...
    2023 02 20    11 45 49.9 +00 32 48   0.3441  1.3071   154.2    19.2    21.8
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-B61
    


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