[Iaude] MPEC Y123: 2019 YA4 [a=0.92,e=0.47,i=2.8,H=23.1]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Dec 30 14:26:44 EST 2019


M.P.E.C. 2019-Y123                            Issued 2019 December 30, 19:25 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 YA4                                    


Observations:
     K19Y04A* C2019 12 29.35549004 38 11.08 -02 09 22.7          18.86cVEY123T05
     K19Y04A  C2019 12 29.35870504 38 11.08 -02 08 30.8          18.04cVEY123T05
     K19Y04A  C2019 12 29.36527004 38 10.98 -02 06 45.8          18.49cVEY123T05
     K19Y04A  C2019 12 29.37669404 38 10.93 -02 03 43.5          18.31cVEY123T05
     K19Y04A KC2019 12 29.74160 04 38 38.36 -00 32 37.4          18.7 GVEY123595
     K19Y04A bC2019 12 29.74627804 38 38.42 -00 31 28.9          17.9 GVEY123L01
     K19Y04A KC2019 12 29.74699 04 38 38.41 -00 31 19.8          18.6 GVEY123595
     K19Y04A bC2019 12 29.74734504 38 38.45 -00 31 13.5          18.1 GVEY123L01
     K19Y04A bC2019 12 29.75293904 38 38.54 -00 29 53.5          17.8 GVEY123L01
     K19Y04A KC2019 12 29.75416 04 38 38.55 -00 29 38.2          18.5 GVEY123595
     K19Y04A bC2019 12 29.75656104 38 38.64 -00 29 01.5          17.8 GVEY123L01
     K19Y04A KC2019 12 29.75955 04 38 38.74 -00 28 21.0          18.0 GVEY123595
     K19Y04A bC2019 12 29.76081804 38 38.71 -00 28 01.3          17.8 GVEY123L01
     K19Y04A KC2019 12 29.76631 04 38 39.24 -00 26 40.3          17.8 GVEY123104
     K19Y04A KC2019 12 29.77127 04 38 39.33 -00 25 29.9                VEY123104
     K19Y04A KC2019 12 29.79258 04 38 39.62 -00 20 27.0          17.7 GVEY123104
     K19Y04A KC2019 12 29.79701 04 38 39.46 -00 19 34.3          17.8 RVEY123A17
     K19Y04A KC2019 12 29.80302 04 38 39.52 -00 18 09.5          18.2 RVEY123A17
     K19Y04A KC2019 12 29.80809 04 38 39.63 -00 16 58.1          17.6 RVEY123A17
     K19Y04A KC2019 12 29.80942 04 38 38.46 -00 16 36.2          17.9 RoEY123K88
     K19Y04A KC2019 12 29.81263 04 38 38.49 -00 15 50.8          17.9 RoEY123K88
     K19Y04A KC2019 12 29.81584 04 38 38.54 -00 15 05.4          17.9 RoEY123K88
     K19Y04A KC2019 12 29.81985 04 38 40.11 -00 14 07.5          18.3 RVEY123K30
     K19Y04A KC2019 12 29.82390 04 38 40.18 -00 13 10.5          18.1 RVEY123K30
     K19Y04A KC2019 12 29.82570 04 38 39.92 -00 12 38.3          17.6 RVEY123160
     K19Y04A KC2019 12 29.82792 04 38 39.96 -00 12 06.7          16.7 RVEY123160
     K19Y04A KC2019 12 29.82816 04 38 40.24 -00 12 11.6          18.8 RVEY123K30
     K19Y04A KC2019 12 29.83013 04 38 39.96 -00 11 36.4          17.8 RVEY123160
     K19Y04A KC2019 12 29.83233 04 38 39.93 -00 11 06.2          16.9 RVEY123160
     K19Y04A KC2019 12 29.83454 04 38 39.94 -00 10 35.4          17.9 RVEY123160
     K19Y04A KC2019 12 29.85503 04 38 40.20 -00 05 57.8          18.3 VtEY123198
     K19Y04A KC2019 12 29.85907 04 38 40.23 -00 05 01.5          18.3 VtEY123198
     K19Y04A KC2019 12 29.86723 04 38 40.28 -00 03 08.1          18.3 VtEY123198
     K19Y04A KC2019 12 29.87132 04 38 40.32 -00 02 11.3          18.5 VtEY123198
     K19Y04A KC2019 12 29.88956 04 38 40.30 +00 01 58.5          17.9 GVEY123K87
     K19Y04A KC2019 12 29.89488 04 38 40.34 +00 03 12.1          18.2 GVEY123K87
     K19Y04A KC2019 12 29.89741 04 38 40.36 +00 03 46.8          17.8 GVEY123K87
     K19Y04A KC2019 12 29.92812 04 38 38.89 +00 10 53.1          18.2 VtEY123L04
     K19Y04A KC2019 12 29.93224 04 38 38.92 +00 11 49.4          18.4 VtEY123L04
     K19Y04A KC2019 12 29.93857 04 38 39.01 +00 13 15.3          18.1 VtEY123L04
     K19Y04A  C2019 12 30.52339204 39 07.75 +02 19 34.5          18.4 GVEY123474
     K19Y04A  C2019 12 30.52497504 39 07.77 +02 19 52.6          18.5 GVEY123474
     K19Y04A  C2019 12 30.52695904 39 07.79 +02 20 15.9          18.5 GVEY123474
     K19Y04A  C2019 12 30.52894404 39 07.82 +02 20 38.6          18.0 GVEY123474
     K19Y04A KC2019 12 30.76212 04 39 25.47 +03 01 07.6          18.3 VVEY123L04
     K19Y04A KC2019 12 30.76723 04 39 25.53 +03 02 03.6          18.1 VVEY123L04
     K19Y04A KC2019 12 30.77234 04 39 25.55 +03 02 59.9          18.4 VVEY123L04

Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers P. 
   Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
160 Castelmartini.  Observers M. Jaeger, E. Prosperi, S. Prosperi.  Measurer E. 
   Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
198 Wildberg.  Observer R. Apitzsch.  0.35-m f/3.1 reflector + CCD.
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M. 
   Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
595 Farra d'Isonzo.  Observer E. Pettarin.  0.40-m f/5.15 reflector + CCD.
A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.  
    0.36-m f/6 Schmidt-Cassegrain + CCD.
K30 Luscherz.  Observer L. Grimm.  0.25-m f/4.8 Newtonian reflector + CCD.
K87 Dettelbach Vineyard Observatory.  Observer B. Haeusler.  0.3-m f/5.7 
   Schmidt-Cassegrain + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector + 
   CCD.
L04 ROASTERR-1 Observatory, Cluj-Napoca.  Observer L. Hudin.  0.3-m f/5 
   reflector + CCD.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, J. Tonry, A. Heinze, H. 
   Weiland, H. Flewelling.  Measurers L. Denneau, J. Tonry, A. Heinze, H. 
   Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, J. Robinson, N. Erasmus. 
    0.5-m reflector + CCD.

Orbital elements:
2019 YA4                                                 Earth MOID = 0.0232 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 248.26187              (2000.0)            P               Q
n   1.11236116     Peri.  206.29586     +0.83165050     +0.55365904
a   0.9225123      Node   120.02088     -0.50040328     +0.78051874
e   0.4705624      Incl.    2.82351     -0.24073637     +0.29026224
P   0.89           H   23.1           G   0.15           U   8
Residuals in seconds of arc
191229 T05  0.3-  0.2-    191229 A17  0.2+  0.1+    191229 198  0.2-  0.3+
191229 T05  0.2+  0.2+    191229 A17  0.3-  0.1-    191229 198  0.1-  0.3+
191229 T05  0.3-  0.0     191229 A17  0.2+  0.3-    191229 K87  0.3+  0.0
191229 T05  0.7+  0.1-    191229 K88  0.5-  0.1-    191229 K87  0.2+  0.2+
191229 595  1.0+  0.2+    191229 K88  0.5-  0.0     191229 K87  0.2+  0.1+
191229 L01  0.3-  0.4+    191229 K88  0.1-  0.2+    191229 L04  0.3-  0.2-
191229 595  0.0   0.5+    191229 K30  0.1-  0.1-    191229 L04  0.6-  0.1-
191229 L01  0.2-  0.4+    191229 K30  0.2+  0.0     191229 L04  0.3-  0.4-
191229 L01  0.6-  0.3+    191229 160  0.1-  0.6+    191230 474  0.1-  0.1+
191229 595  0.1-  0.7-    191229 160  0.2+  1.0+    191230 474  0.0   0.2-
191229 L01  0.1-  0.4+    191229 K30  0.5+  0.9-    191230 474  0.1+  0.0
191229 595  1.2+  0.6-    191229 160  0.0   0.3+    191230 474  0.3+  0.3-
191229 L01  0.2-  0.3-    191229 160  0.7-  0.3-    191230 L04  0.0   0.1+
191229 104  0.3+  0.2-    191229 160  0.7-  0.5-    191230 L04  0.2+  0.0
191229 104  0.4+  0.5-    191229 198  0.1+  0.2+    191230 L04  0.2-  0.2+
191229 104  0.2+  0.4-    191229 198  0.0   0.3+

Ephemeris:
2019 YA4                 a,e,i = 0.92, 0.47, 3                   q = 0.4884
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2019 11 30    16 47 49.7 -30 39 43   0.2171  0.7743    10.9   166.1    33.0
...
2019 12 15    16 49 03.6 -42 15 54   0.07996 0.9099    20.6   157.6    27.6
...
2019 12 23    02 56 34.3 -83 50 50   0.02514 0.9757    70.9   107.7    19.1
...
2019 12 29    04 37 49.6 -03 48 34   0.04827 1.0217   141.7    36.7    18.1
2019 12 30    04 38 45.7 +00 28 48   0.05582 1.0290   144.0    34.1    18.3
2019 12 31    04 39 32.3 +03 44 50   0.06362 1.0363   145.4    32.6    18.6
...
2020 01 06    04 43 05.1 +13 38 22   0.1132  1.0782   145.3    31.2    19.9
...
2020 01 14    04 47 55.8 +18 27 39   0.1830  1.1294   139.8    34.2    21.1
...
2020 01 29    05 00 49.8 +22 01 36   0.3227  1.2107   128.1    39.8    22.6

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-Y123




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