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  • MPEC 2019-A51 : 2013 YM2

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    M.P.E.C. 2019-A51                                Issued 2019 Jan. 5, 03:48 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
    
                                       2013 YM2
    
                               Revision to MPEC 2013-Y37
    
    Additional Observations:
         K13Y02M  C2019 01 04.40431 11 58 43.18 +33 43 08.4          19.1 GVEA051703
         K13Y02M  C2019 01 04.40959 11 58 48.54 +33 44 07.8          19.1 GVEA051703
         K13Y02M  C2019 01 04.42016 11 58 59.16 +33 46 06.0          18.9 GVEA051703
         K13Y02M  C2019 01 04.44005 11 59 19.10 +33 49 47.1          19.1 GVEA051G96
         K13Y02M  C2019 01 04.44524 11 59 24.26 +33 50 44.0          19.1 GVEA051G96
         K13Y02M  C2019 01 04.45042 11 59 29.42 +33 51 41.4          19.3 GVEA051G96
         K13Y02M  C2019 01 04.45561 11 59 34.58 +33 52 38.3          19.0 GVEA051G96
         K13Y02M  C2019 01 04.53177 12 00 50.07 +34 06 19.2                VEA051703
         K13Y02M  C2019 01 04.53359 12 00 51.93 +34 06 38.2          18.6 GVEA051703
         K13Y02M  C2019 01 04.53389 12 00 52.24 +34 06 41.6          19.0 GVEA051703
         K13Y02M  C2019 01 04.53562 12 00 53.92 +34 06 59.5          18.6 GVEA051703
         K13Y02M KC2019 01 05.07505 12 12 02.75 +35 41 54.0          18.8  qEA051104
         K13Y02M KC2019 01 05.08019 12 12 08.74 +35 42 53.2          19.0  qEA051104
         K13Y02M KC2019 01 05.08533 12 12 14.70 +35 43 52.2          19.1  qEA051104
    
    Observer details:
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    703 Catalina Sky Survey.  Observer H. Groeller.  Measurers B. M. Africano,
        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, R. L. Seaman,
        F. C. Shelly.  0.68-m Schmidt + 10K CCD.
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
        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, R. L. Seaman,
        F. C. Shelly.  1.5-m reflector + 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
    190104 703 4.59+ 7.30-    190105 104 4.23+ 8.13-    MPO279479   -0.18 day
    
    Orbital elements:
    2013 YM2                                                 Earth MOID = 0.0161 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 355.56719              (2000.0)            P               Q
    n   1.18965706     Peri.  161.81399     -0.28754503     +0.95612848
    a   0.8821075      Node    91.44566     -0.88554240     -0.24313128
    e   0.1564743      Incl.    3.21136     -0.36487328     -0.16341822
    P   0.83           H   25.9           G   0.15           U   3
    Residuals in seconds of arc
    131224 G96  0.4-  0.1-    131225 G96  0.4+  0.1+    140104 926 (5.5-  0.8+)
    131224 G96  0.0   0.0     131225 448  0.4+  0.3+    140104 926 (5.4-  1.0+)
    131224 711  0.1-  0.0     131225 G96  0.5+  0.1-    140104 926 (4.4-  0.8+)
    131224 711  0.2-  0.0     131225 448  1.0+  0.7+    190104 703  0.5-  0.0
    131224 711  0.2-  0.1+    131225 G96  0.7+  0.0     190104 703  0.1-  0.1+
    131224 711  0.1+  0.1+    131225 G96  0.1-  0.1-    190104 703  0.3-  0.0
    131224 G96  0.1+  0.1+    131225 448  0.3+  0.0     190104 G96  0.1-  0.2+
    131224 G96  0.2-  0.5-    131225 448  0.4+  0.0     190104 G96  0.3-  0.3-
    131224 G96  0.1+  0.1+    131226 448  0.1+  0.4-    190104 G96  0.3-  0.0
    131224 G96  0.0   0.0     131226 448  0.9+  0.0     190104 G96  0.3-  0.2-
    131224 G96  0.0   0.3-    131226 448  0.2+  0.6-    190104 703  0.7-  0.0
    131224 G96  0.0   0.1-    131226 926  0.3-  0.1+    190104 703  0.1-  0.1-
    131224 291  0.1+  0.0     131226 926  0.1-  0.1+    190104 703  0.0   0.1+
    131224 291  0.1-  0.1+    131226 926  0.7+  0.3+    190104 703  0.5-  0.2-
    131224 291  0.0   0.1-    131228 926  0.4-  0.3+    190105 104  1.0+  0.0
    131225 J95  0.2+  0.6-    131228 926  0.2-  0.6+    190105 104  1.0+  0.0
    131225 J95  0.6-  0.7+    131228 926  0.4-  0.7+    190105 104  0.8+  0.1-
    
    Ephemeris:
    2013 YM2                 a,e,i = 0.88, 0.16, 3                   q = 0.7441
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 12 06    09 28 31.5 +05 17 11   0.08936 1.0201   110.5    64.8    23.0
    ...
    2018 12 21    10 05 06.8 +11 00 54   0.05379 1.0112   119.4    58.0    21.7
    ...
    2018 12 29    10 44 01.5 +19 28 44   0.03600 1.0025   121.3    57.0    20.7
    ...
    2019 01 04    11 51 07.3 +32 33 25   0.02496 0.9942   115.3    63.4    20.1
    2019 01 05    12 10 11.7 +35 29 36   0.02355 0.9927   112.9    65.8    20.1
    2019 01 06    12 33 04.0 +38 32 38   0.02232 0.9912   110.0    68.8    20.0
    ...
    2019 01 12    16 16 37.4 +48 09 43   0.02049 0.9810    82.4    96.4    20.9
    ...
    2019 01 20    19 20 37.7 +31 47 01   0.03163 0.9653    53.2   125.3    23.6
    ...
    2019 02 04    20 30 48.1 +14 38 37   0.06654 0.9302    32.4   145.4    27.5
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-A51
    

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