[Iaude] MPEC R226: 2019 MG2 [a=0.93,e=0.46,i=12.1,H=22.14]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2023-R226                           Issued 2023 September 15, 14:09 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 MG2                                    


                           Revision to MPEC 2019-N04                            

Additional Observations:
     K19M02G  C2010 06 17.34033 17 06 59.42 -12 10 09.1          21.0 GVER226G96
     K19M02G  C2010 06 17.35918 17 06 54.38 -12 10 30.8          21.1 GVER226G96
     K19M02G  C2018 06 18.25913 15 56 12.04 -07 04 17.7          20.5 GVER226G96
     K19M02G  C2018 06 18.26427 15 56 10.96 -07 04 24.0          20.9 GVER226G96
     K19M02G  C2018 06 18.26940 15 56 09.95 -07 04 30.3          21.4 GVER226G96

Observer details:
G96 Mt. Lemmon Survey.  Observers A. Boattini, A. D. Grauer.  Measurers B.
    Gray, D. Rankin, F. C. Shelly.  1.5-m reflector + CCD, 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
100617 G96 0.11- 0.02-    180618 G96 0.06- 0.01-    MPO473698   +0.00 days

Orbital elements:
2019 MG2                                                 Earth MOID = 0.1352 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 121.18011              (2000.0)            P               Q                  
n   1.10499291     Peri.  348.16136     +0.09497183     -0.97329005             
a   0.9266087      Node    96.12654     +0.92963237     +0.01161830             
e   0.4553140      Incl.   12.13493     +0.35603934     +0.22928476             
P   0.89           H   22.14          G   0.15           U   1                  
Residuals in seconds of arc
100617 G96  0.2-  0.0     190701 I52  0.4+  0.5+    190705 I52  0.6-  0.2-
100617 G96  0.2+  0.1-    190701 I52  0.3+  0.2+    190705 I52  1.1-  0.6+
180618 G96  0.2+  0.0     190701 474  0.3-  0.1-    190706 F51  0.2+  0.3+
180618 G96  0.3-  0.0     190701 474  0.2+  0.1+    190706 F51  0.2+  0.4+
180618 G96  0.1+  0.0     190701 474  0.0   0.1+    190706 F51  0.2+  0.2+
190629 F51  0.3+  0.1+    190701 474  0.5+  0.2+    190706 F51  0.2+  0.3+
190629 F51  0.2+  0.3+    190703 I52  0.2-  0.3-    190710 I52  0.2-  0.0
190629 F51  0.1+  0.2+    190703 I52  0.4+  0.1+    190710 I52  0.4-  0.6+
190630 691  0.3+  0.3+    190703 I52  0.0   0.2+    190725 474  0.0   0.1-
190630 691  0.4+  0.5+    190703 I52  0.4-  0.6-    190725 474  0.2+  0.0
190630 691  0.4-  0.4+    190705 I52  0.2+  0.1-    190725 474  0.1-  0.4-
190701 I52  0.4+  2.0-    190705 I52  0.5-  1.0-

Ephemeris:
2019 MG2                 a,e,i = 0.93, 0.46, 12                  q = 0.5047
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 16    12 24 02.2 +04 40 52   1.6279  1.0986    41.5    37.7    24.9
...
2023 08 31    13 13 00.6 -01 27 04   1.7488  1.1834    40.7    33.8    25.1
...
2023 09 08    13 37 12.3 -04 25 43   1.8141  1.2213    39.7    31.8    25.2
...
2023 09 14    13 54 45.7 -06 31 28   1.8624  1.2464    38.6    30.3    25.3
2023 09 15    13 57 39.0 -06 51 44   1.8704  1.2503    38.4    30.0    25.3
2023 09 16    14 00 31.6 -07 11 49   1.8783  1.2541    38.3    29.8    25.3
...
2023 09 22    14 17 36.7 -09 08 11   1.9248  1.2755    37.0    28.3    25.3
...
2023 09 30    14 40 01.2 -11 32 30   1.9837  1.2996    35.1    26.3    25.4
...
2023 10 15    15 21 31.4 -15 30 34   2.0822  1.3318    31.1    22.8    25.4

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-R226