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  • MPEC 2024-A69 : 2019 YG2

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    M.P.E.C. 2024-A69                               Issued 2024 January 7, 14:15 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 YG2                                 
    
    
                               Revision to MPEC 2019-Y73                            
    
    Additional Observations:
         K19Y02G KC2023 12 29.20381004 07 06.660+27 50 12.30         20.41GVEA069I52
         K19Y02G KC2023 12 29.20857704 07 03.020+27 50 57.60         20.17GVEA069I52
         K19Y02G KC2023 12 29.21112004 07 01.060+27 51 22.00         19.82GVEA069I52
         K19Y02G KC2023 12 29.21366604 06 59.070+27 51 46.00         20.33GVEA069I52
         K19Y02G  C2024 01 01.20904 03 32 12.06 +34 48 19.3          21.4 GVEA069I52
         K19Y02G  C2024 01 01.21761 03 32 05.97 +34 49 19.3          21.0 GVEA069I52
         K19Y02G  C2024 01 01.22189 03 32 02.95 +34 49 49.5          21.0 GVEA069I52
         K19Y02G 0C2024 01 05.32457802 50 30.725+41 21 04.52         22.65GVEA069T12
    
    Observer details:
    I52 Steward Observatory, Mt. Lemmon Station.  Observers D. C. Fuls, G. J.
        Leonard.  Measurers E. C. Beshore, D. Fay, J. B. Fazekas, D. C. Fuls, A.
        R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
        Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
        Wierzchos, B. Gray.  1.0-m prime focus + CCD, 1.0-m f/2.0 prime focus +
        CCD.
    T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
        2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    231229 I52 0.80+ 0.53+    240105 T12 0.32+ 0.60+    MPO782680   +0.08 days
    
    Orbital elements:
    2019 YG2                                                 Earth MOID = 0.0607 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M  58.36348              (2000.0)            P               Q                  
    n   1.23144265     Peri.  174.77656     -0.03159562     +0.96056177             
    a   0.8620384      Node    93.20939     -0.92675300     +0.07536611             
    e   0.2143015      Incl.   16.06334     -0.37434022     -0.26765842             
    P   0.80           H   25.27          G   0.15           U   1                  
    Residuals in seconds of arc
    191221 G96  0.6+  0.2-    191221 033  0.2-  0.1-    191229 204  0.2-  0.4+
    191221 G96  0.0   0.4+    191221 033  0.5-  0.0     191229 204  0.3-  0.0
    191221 G96  0.2-  0.4+    191221 033  0.3-  0.0     191229 204  0.2+  0.2+
    191221 I52  0.1-  0.8-    191221 033  0.5-  0.2-    200103 V06  0.5-  0.6-
    191221 I52  0.1-  0.3-    191222 711  0.3-  0.1-    200103 V06  0.3-  0.1+
    191221 I52  0.7+  0.8-    191222 711  0.2-  0.1+    200103 V06  0.2+  0.2+
    191221 I52  0.1+  0.6+    191222 711  0.1-  0.2+    200103 V06 (9.9-  8.2+)
    191221 033  0.4-  0.2-    191222 H21  0.6+  0.1+    231229 I52  0.3-  0.2+
    191221 033  0.3-  0.2-    191222 H21  0.8+  0.2+    231229 I52  0.3+  0.2-
    191221 033  0.7-  0.3-    191222 H21  0.8+  0.0     231229 I52  0.3+  0.1-
    191221 033  0.4-  0.2-    191222 H01  0.2+  0.0     231229 I52  0.0   0.4-
    191221 033  0.1-  0.3-    191222 H01  0.1+  0.1+    240101 I52  0.1-  0.4+
    191221 033  0.3-  0.1+    191222 H01  0.1+  0.1-    240101 I52  0.1-  0.2-
    191221 J04  0.0   0.1+    191222 H01  0.1-  0.3-    240101 I52  0.1+  0.1-
    191221 J04  0.0   0.0     191222 J95  0.5+  0.2-    240105 T12  0.3+  0.3-
    191221 033  0.3-  0.0     191222 J95  1.0+  0.6+
    
    Ephemeris:
    2019 YG2                 a,e,i = 0.86, 0.21, 16                  q = 0.6773
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 12 08    07 28 01.6 -25 24 14   0.1071  1.0421   119.5    55.4    22.5
    ...
    2023 12 23    05 22 40.8 +08 06 32   0.06599 1.0466   162.0    16.9    20.4
    ...
    2023 12 31    03 45 54.3 +32 14 41   0.07614 1.0437   141.1    36.2    21.2
    ...
    2024 01 06    02 44 31.6 +42 08 57   0.09612 1.0391   123.2    52.3    22.2
    2024 01 07    02 36 00.1 +43 14 03   0.09999 1.0381   120.8    54.4    22.3
    2024 01 08    02 27 58.3 +44 12 08   0.1040  1.0371   118.6    56.4    22.5
    ...
    2024 01 14    01 49 14.6 +48 16 02   0.1291  1.0298   107.5    65.6    23.2
    ...
    2024 01 22    01 16 20.3 +51 14 39   0.1634  1.0168    96.9    73.9    24.0
    ...
    2024 02 06    00 42 11.3 +54 15 24   0.2222  0.9833    82.8    84.2    24.9
    
    A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-A69
    


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