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  • MPEC 2019-Y57 : 2019 YR1

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    M.P.E.C. 2019-Y57                             Issued 2019 December 22, 02:27 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
    
                                    2019 YR1                                 
    
    
    Observations:
         K19Y01R* C2019 12 20.27288 06 02 36.63 +18 39 51.9          19.5 GVEY057G96
         K19Y01R  C2019 12 20.27861 06 02 31.41 +18 44 05.1          19.0 GVEY057G96
         K19Y01R  C2019 12 20.29009 06 02 20.95 +18 52 38.4          20.1 GVEY057G96
         K19Y01R  C2019 12 20.35603 06 01 19.67 +19 42 10.0          18.4 GVEY057I52
         K19Y01R  C2019 12 20.35680 06 01 19.00 +19 42 44.8          18.7 GVEY057I52
         K19Y01R  C2019 12 20.35718 06 01 18.75 +19 42 55.8          18.5 GVEY057I52
         K19Y01R KC2019 12 20.87857305 53 13.64 +26 42 42.2          19.3 GVEY057J95
         K19Y01R KC2019 12 20.88585705 53 05.45 +26 48 58.9          19.2 GVEY057J95
         K19Y01R KC2019 12 20.89191605 52 58.59 +26 54 12.0          19.1 GVEY057J95
         K19Y01R KC2019 12 20.89841305 52 51.16 +26 59 48.6          19.4 GVEY057J95
         K19Y01R KC2019 12 20.93728 05 52 12.09 +27 34 55.7          18.1 RVEY057J04
         K19Y01R KC2019 12 20.93747 05 52 11.90 +27 35 05.9          17.8 RVEY057J04
         K19Y01R KC2019 12 20.93766 05 52 11.67 +27 35 15.6          18.0 RVEY057J04
         K19Y01R KC2019 12 21.02849205 50 16.39 +28 53 10.1          18.9 GVEY057Z99
         K19Y01R KC2019 12 21.03062105 50 13.80 +28 55 02.5          19.0 GVEY057Z99
         K19Y01R KC2019 12 21.03280305 50 11.14 +28 56 57.9          19.0 GVEY057Z99
         K19Y01R  C2019 12 21.16403 05 47 51.08 +30 55 03.0          19.3 GVEY057I52
         K19Y01R  C2019 12 21.16450 05 47 50.49 +30 55 28.4          18.3 GVEY057I52
         K19Y01R  C2019 12 21.16497 05 47 49.92 +30 55 54.7          19.0 GVEY057I52
         K19Y01R  C2019 12 21.16545 05 47 49.24 +30 56 20.8          18.6 GVEY057I52
         K19Y01R  C2019 12 21.19506 05 46 46.38 +31 21 05.9          18.8 VVEY057033
         K19Y01R  C2019 12 21.19546 05 46 45.89 +31 21 27.1          18.7 VVEY057033
         K19Y01R  C2019 12 21.19584 05 46 45.40 +31 21 47.9          18.6 VVEY057033
         K19Y01R  C2019 12 21.19623 05 46 44.93 +31 22 09.0          19.1 VVEY057033
         K19Y01R  C2019 12 21.19661 05 46 44.44 +31 22 29.5          18.8 VVEY057033
         K19Y01R  C2019 12 21.19701 05 46 43.94 +31 22 50.4          18.7 VVEY057033
         K19Y01R KC2019 12 21.28687 05 45 01.52 +32 47 53.6                 EY057711
         K19Y01R KC2019 12 21.28848 05 44 59.24 +32 49 22.9                 EY057711
         K19Y01R KC2019 12 21.29066 05 44 56.14 +32 51 23.1                 EY057711
         K19Y01R  C2019 12 21.79825 05 32 28.03 +40 50 46.9          18.9 VVEY057033
         K19Y01R  C2019 12 21.79858 05 32 27.46 +40 51 06.3          18.6 VVEY057033
         K19Y01R  C2019 12 21.79891 05 32 26.86 +40 51 25.9          19.2 VVEY057033
         K19Y01R  C2019 12 21.79924 05 32 26.25 +40 51 45.8          17.3 VVEY057033
         K19Y01R  C2019 12 21.79957 05 32 25.70 +40 52 04.3          19.2 VVEY057033
         K19Y01R  C2019 12 21.79990 05 32 25.10 +40 52 23.8          19.2 VVEY057033
         K19Y01R pC2019 12 21.92556205 28 30.20 +42 55 51.1          19.7 GVEY057L01
         K19Y01R KC2019 12 21.92619605 28 28.86 +42 56 28.3          19.3 GVEY057L01
         K19Y01R IC2019 12 21.92681705 28 27.68 +42 57 04.7          19.2 GVEY057L01
         K19Y01R pC2019 12 21.92803205 28 25.33 +42 58 15.6          20.7 GVEY057L01
         K19Y01R  C2019 12 21.93931 05 28 03.64 +43 08 47.8          18.4 VVEY057033
         K19Y01R  C2019 12 21.93964 05 28 02.95 +43 09 07.1          18.7 VVEY057033
         K19Y01R  C2019 12 21.93997 05 28 02.33 +43 09 27.0          18.1 VVEY057033
         K19Y01R  C2019 12 21.94029 05 28 01.67 +43 09 45.8          18.4 VVEY057033
         K19Y01R  C2019 12 21.94062 05 28 01.02 +43 10 05.0          18.6 VVEY057033
         K19Y01R  C2019 12 21.94095 05 28 00.35 +43 10 24.1          18.5 VVEY057033
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C. 
       Hoegner, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    711 McDonald Observatory, Fort Davis.  Observer .
    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.  Observers T. A. Pruyne, D. 
       Rankin.  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.
    J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers A. 
       Knofel, D. Koschny, M. Busch, M. Micheli, E. Schwab.  1.0-m f/4.4 
       reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain 
       + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector + 
       CCD.
    Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8 
       Schmidt-Cassegrain + CCD.
    
    Orbital elements:
    2019 YR1                                                 Earth MOID = 0.0315 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Bell
    M  79.46910              (2000.0)            P               Q
    n   0.82871953     Peri.   82.84779     -0.86704225     -0.14037948
    a   1.1225293      Node    88.20432     -0.04954289     -0.93043973
    e   0.2526162      Incl.   28.57341     +0.49576530     -0.33849004
    P   1.19           H   25.7           G   0.15           U   6
    Residuals in seconds of arc
    191220 G96 (0.1+  2.4+)   191221 Z99  0.6-  1.0+    191221 033  0.1-  0.3-
    191220 G96  0.1-  0.1-    191221 I52  0.1-  0.2-    191221 033  0.3-  0.0
    191220 G96  0.2+  0.1-    191221 I52  0.1+  0.5-    191221 033  0.6-  0.5+
    191220 I52  0.6-  0.1+    191221 I52  0.7+  0.0     191221 033  0.2-  0.4-
    191220 I52  0.2+  0.0     191221 I52  0.1-  0.1-    191221 033  0.3-  0.3-
    191220 I52 (1.7+  6.3-)   191221 033  0.1-  0.2+    191221 L01  0.6+  0.2+
    191220 J95  0.0   0.2+    191221 033  0.1+  0.1-    191221 L01  0.4-  0.2+
    191220 J95  0.2+  0.2+    191221 033  0.0   0.2+    191221 L01  0.0   0.3+
    191220 J95  0.2+  0.3-    191221 033  0.2+  0.3+    191221 L01  0.4+  0.0
    191220 J95  0.3-  0.4-    191221 033  0.1+  0.3+    191221 033  0.4+  0.3-
    191220 J04  0.2-  0.1+    191221 033  0.1+  0.3-    191221 033  0.0   0.3-
    191220 J04  0.3+  0.4+    191221 711  0.1+  0.6-    191221 033  0.3+  0.3+
    191220 J04  0.2+  0.1+    191221 711  0.2+  0.2-    191221 033  0.0   0.3+
    191221 Z99  1.0-  0.8+    191221 711  0.3+  0.4-    191221 033  0.0   0.2+
    191221 Z99  0.8-  0.8+    191221 033  0.3-  0.3-    191221 033  0.2-  0.0
    
    Ephemeris:
    2019 YR1                 a,e,i = 1.12, 0.25, 29                  q = 0.8390
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 11 22    06 48 47.4 -29 18 18   0.2913  1.1386   114.2    52.3    25.2
    ...
    2019 12 07    06 48 09.4 -25 42 04   0.1498  1.0765   124.2    49.2    23.6
    ...
    2019 12 15    06 36 22.7 -14 37 37   0.07627 1.0426   138.5    38.7    21.7
    ...
    2019 12 21    05 50 52.3 +28 29 15   0.03366 1.0173   174.9     4.9    18.8
    2019 12 22    05 26 09.3 +44 07 46   0.03157 1.0131   158.3    21.0    19.3
    2019 12 23    04 40 56.7 +59 48 31   0.03229 1.0089   140.9    37.9    19.8
    ...
    2019 12 29    20 16 16.9 +62 38 27   0.07138 0.9841    88.5    87.3    23.0
    ...
    2020 01 06    19 31 40.2 +50 27 22   0.1420  0.9522    73.3    98.5    24.9
    ...
    2020 01 21    19 17 51.0 +42 53 56   0.2728  0.8991    64.1   100.0    26.3
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-Y57
    


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