[Iaude] MPEC Y78: 2019 YM2 [a=2.43,e=0.51,i=15.0,H=22.7]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 22 19:44:55 EST 2019


M.P.E.C. 2019-Y78                             Issued 2019 December 23, 00:43 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2019 YM2                                    


Observations:
     K19Y02M* C2019 12 20.33920 07 58 50.00 +15 22 25.1          21.0 GVEY078G96
     K19Y02M  C2019 12 20.34475 07 58 50.74 +15 22 39.6          21.8 GVEY078G96
     K19Y02M  C2019 12 20.35031 07 58 51.57 +15 22 53.3          20.9 GVEY078G96
     K19Y02M  C2019 12 20.35586 07 58 52.33 +15 23 07.3          21.2 GVEY078G96
     K19Y02M  C2019 12 20.44511 07 59 05.29 +15 26 53.6          21.7 GVEY078I52
     K19Y02M  C2019 12 20.44844 07 59 05.73 +15 27 02.1          21.2 GVEY078I52
     K19Y02M  C2019 12 20.45177 07 59 06.21 +15 27 10.3          21.9 GVEY078I52
     K19Y02M KC2019 12 20.99975208 00 33.625+15 50 37.00         21.5 GVEY078J04
     K19Y02M KC2019 12 21.00875108 00 34.986+15 51 00.68         21.7 GVEY078J04
     K19Y02M KC2019 12 21.01765708 00 36.295+15 51 24.06         21.3 GVEY078J04
     K19Y02M |C2019 12 21.21571 08 01 06.95 +16 00 27.7          21.4 GVEY078807
     K19Y02M |C2019 12 21.22134 08 01 07.79 +16 00 42.5          21.3 GVEY078807
     K19Y02M |C2019 12 21.22698 08 01 08.62 +16 00 57.3          21.1 GVEY078807
     K19Y02M  C2019 12 21.30133 08 01 20.69 +16 03 42.6          21.5 GVEY078V06
     K19Y02M  C2019 12 21.30311 08 01 20.93 +16 03 47.2          20.9 GVEY078V06
     K19Y02M  C2019 12 21.30488 08 01 21.19 +16 03 52.1          21.2 GVEY078V06
     K19Y02M  C2019 12 21.30666 08 01 21.46 +16 03 57.2          21.9 GVEY078V06
     K19Y02M KC2019 12 22.27584108 03 55.21 +16 47 02.9          22.0 VuEY078H21
     K19Y02M KC2019 12 22.28197608 03 56.14 +16 47 19.5          21.5 VuEY078H21
     K19Y02M KC2019 12 22.28807208 03 57.04 +16 47 36.5          21.9 VuEY078H21
     K19Y02M KC2019 12 22.28892 08 03 57.69 +16 47 43.2                oEY078711
     K19Y02M IC2019 12 22.29239 08 03 58.20 +16 47 53.0                oEY078711
     K19Y02M KC2019 12 22.29598 08 03 58.74 +16 48 02.4                oEY078711

Observer details:
711 McDonald Observatory, Fort Davis.  Observer J. G. Ries.  2.1-m reflector + 
   CCD + focal reducer.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.  
    1.00-m f/10.0 astrograph + CCD.
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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.  
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0 
   astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer T. A. Pruyne.  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 M. 
   Micheli, D. Koschny, M. Busch, A. Knofel, E. Schwab.  1.0-m f/4.4 
   reflector + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer 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.  1.55-m reflector + CCD.

Orbital elements:
2019 YM2                                                 Earth MOID = 0.2307 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Bell
M  33.02330              (2000.0)            P               Q
n   0.26010307     Peri.   27.13330     -0.58477252     -0.76982059
a   2.4305565      Node    99.74893     +0.68921567     -0.63777898
e   0.5090673      Incl.   15.04133     +0.42781172     -0.02478348
P   3.79           H   22.7           G   0.15           U   8
Residuals in seconds of arc
191220 G96  0.9+  0.1-    191221 J04  0.1+  0.2+    191221 V06  0.0   0.5+
191220 G96  0.0   0.3+    191221 J04  0.1-  0.2+    191222 H21  0.1+  0.6-
191220 G96  0.3+  0.2-    191221 807  0.2-  0.1-    191222 H21  0.1+  0.8-
191220 G96  0.3-  0.3-    191221 807  0.0   0.1-    191222 H21  0.1-  0.4-
191220 I52  0.2+  0.0     191221 807  0.0   0.2-    191222 711  0.2+  0.5+
191220 I52  0.4-  0.1+    191221 V06  0.3+  0.0     191222 711  0.0   0.8+
191220 I52  0.5-  0.1-    191221 V06  0.1-  0.1-    191222 711  0.0   0.3+
191220 J04  0.1-  0.1+    191221 V06  0.1-  0.1+

Ephemeris:
2019 YM2                 a,e,i = 2.43, 0.51, 15                  q = 1.1932
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2019 11 23    06 59 37.1 +04 42 23   0.5068  1.3783   131.8    32.3    23.3
...
2019 12 08    07 29 49.9 +08 40 42   0.3854  1.3061   140.6    28.6    22.5
...
2019 12 16    07 48 00.5 +12 35 01   0.3327  1.2734   145.9    25.7    22.0
...
2019 12 22    08 03 10.4 +16 34 47   0.2997  1.2521   149.9    23.2    21.7
2019 12 23    08 05 51.5 +17 20 28   0.2948  1.2488   150.5    22.8    21.6
2019 12 24    08 08 35.5 +18 07 49   0.2901  1.2456   151.1    22.4    21.6
...
2019 12 30    08 26 09.9 +23 24 52   0.2659  1.2282   154.2    20.4    21.3
...
2020 01 07    08 53 15.5 +31 35 23   0.2453  1.2102   155.1    20.0    21.1
...
2020 01 22    09 55 31.6 +46 33 13   0.2431  1.1937   146.2    27.3    21.2

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-Y78




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