[Iaude] MPEC T101: 2019 YL [a=1.32,e=0.28,i=1.4,H=25.55]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Oct 8 10:09:45 EDT 2023


M.P.E.C. 2023-T101                              Issued 2023 October 8, 14:08 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2019 YL                                     


                           Revision to MPEC 2019-Y22                            

Additional Observations:
     K19Y00L ;C2016 08 14.15560 22 11 51.57 -06 34 53.7          22.2 zVET101W84
     K19Y00L  C2016 09 05.28658 21 44 07.67 -01 11 32.4          21.2 VqET101G96
     K19Y00L  C2016 09 05.29142 21 44 06.94 -01 11 26.3          20.8 VqET101G96
     K19Y00L  C2016 09 05.29629 21 44 06.18 -01 11 20.1          21.1 VqET101G96
     K19Y00L  C2016 09 05.30115 21 44 05.47 -01 11 12.8          21.4 VqET101G96
     K19Y00L ;C2016 09 07.16150 21 40 05.80 -00 21 44.7          21.6 zVET101W84
     K19Y00L ;C2016 09 08.08340 21 38 01.62 +00 04 10.7          21.4 iVET101W84
     K19Y00L ;C2016 09 08.14340 21 37 50.85 +00 05 55.3          21.7 gVET101W84
     K19Y00L  C2016 09 09.22286 21 35 15.30 +00 36 39.7                VET101G96
     K19Y00L  C2016 09 09.23187 21 35 13.66 +00 36 54.7          20.9 GVET101G96

Observer details:
G96 Mt. Lemmon Survey.  Observers R. G. Matheny, A. R. Gibbs.  Measurers E. J.
    Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A.
    Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C.
    Shelly, B. Gray, D. Rankin.  1.5-m reflector + 10K CCD.
W84 Cerro Tololo-DECam.  Observer .  Measurer P. VanWylen.  4.0-m reflector +
    CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160814 W84 0.02- 0.01-    160909 G96 0.04- 0.02-    MPO545156   +0.03 days

Orbital elements:
2019 YL                                                  Earth MOID = 0.0108 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 190.58875              (2000.0)            P               Q                  
n   0.65121378     Peri.  120.57074     +0.66580778     -0.74574592             
a   1.3182173      Node   287.66539     +0.67574336     +0.61618200             
e   0.2789878      Incl.    1.42694     +0.31633987     +0.25334315             
P   1.51           H   25.55          G   0.15           U   0                  
Residuals in seconds of arc
160814 W84  0.7-  0.2+    191219 T08  0.2+  0.2-    191221 I52  0.1+  0.1-
160905 G96  0.7-  0.9+    191219 T05  0.3+  0.4+    191223 I52  0.1-  0.1-
160905 G96  0.3-  0.1-    191219 T08  0.1+  0.2-    191223 I52  0.0   0.2-
160905 G96  0.2-  0.9-    191219 T05  0.0   0.1-    191223 I52  0.4-  0.3+
160905 G96  0.6+  0.7-    191219 T08  0.2+  0.7+    191231 291  0.1-  0.1-
160907 W84  0.3-  0.1+    191219 T05  0.4-  0.0     191231 291  0.4+  0.3-
160908 W84  0.0   0.2-    191219 T05  0.4-  1.0+    191231 291  0.1-  0.0
160908 W84  0.1+  0.3-    191219 T08  0.3-  0.2-    200101 291  0.4+  0.2+
160909 G96  0.1-  1.3+    191219 T05  0.1+  0.5+    200101 291  0.2-  0.2-
160909 G96  0.8+  0.7-    191219 T08  0.2+  0.1+    200101 291  0.3-  0.0
191215 F51  0.0   0.1+    191219 T05  0.2-  0.1-    200104 I52  0.1-  0.0
191219 703  0.0   0.5-    191219 T05  0.2-  0.0     200104 I52  0.2-  0.0
191219 703  0.4+  0.4+    191219 T05  0.2-  0.3-    200104 I52  0.1-  0.2+
191219 703  0.5-  0.0     191219 T08  0.3-  0.2-    200104 I52  0.3+  0.1-
191219 703  0.1+  0.6-    191219 T08  0.1+  0.8-    200105 G96  0.4-  0.0
191219 T05  0.0   0.0     191219 T08  0.0   0.1-    200105 G96  0.3+  0.0
191219 T05  0.1+  0.7+    191219 T08  0.1+  0.2-    200105 G96  0.2+  0.1+
191219 T05  0.0   0.3+    191219 T08  0.2-  0.1+    200105 G96  0.0   0.0
191219 T05  0.0   0.1+    191219 F51  0.2+  0.5+    200114 691  0.1+  0.4-
191219 T05  0.2+  0.2+    191221 I52  0.1+  0.1-    200114 691  0.0   0.3-
191219 T08  0.3+  0.2+    191221 I52  0.0   0.1-    200114 691  0.7+  0.4-
191219 T05  0.4+  0.8+    191221 I52  0.0   0.3+

Ephemeris:
2019 YL                  a,e,i = 1.32, 0.28, 1                   q = 0.9505
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 08    13 43 39.5 -11 39 38   2.2662  1.6841    43.5    24.3    29.6
...
2023 09 23    14 17 17.3 -14 33 07   2.3564  1.6760    37.5    21.4    29.6
...
2023 10 01    14 35 48.8 -16 00 04   2.3966  1.6690    34.4    19.8    29.6
...
2023 10 07    14 50 00.6 -17 02 08   2.4231  1.6625    32.0    18.6    29.5
2023 10 08    14 52 24.1 -17 12 12   2.4272  1.6613    31.6    18.4    29.5
2023 10 09    14 54 48.2 -17 22 10   2.4312  1.6601    31.3    18.2    29.5
...
2023 10 15    15 09 22.5 -18 20 07   2.4533  1.6523    28.9    17.0    29.5
...
2023 10 23    15 29 16.1 -19 31 50   2.4776  1.6402    25.8    15.3    29.4
...
2023 11 07    16 08 03.1 -21 26 05   2.5069  1.6126    20.1    12.2    29.3

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-T101




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