[Iaude] MPEC X71: 2017 OG68 [a=2.48,e=0.49,i=4.7,H=21.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 3 09:09:27 EST 2021


M.P.E.C. 2021-X71                              Issued 2021 December 3, 14:08 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

                                   2017 OG68                                    


                           Revision to MPEC 2017-P31                            

Additional Observations:
     K17O68G  C2013 07 18.39672319 17 04.035-10 33 59.56         21.87GVEX071F51
     K17O68G  C2013 07 18.40835419 17 03.202-10 33 57.81         22.61GVEX071F51
     K17O68G  C2013 07 19.39427319 16 01.475-10 31 39.20         22.97GVEX071F51
     K17O68G  C2013 07 19.40562319 16 00.690-10 31 37.45         22.29GVEX071F51
     K17O68G KC2017 06 25.56701221 37 38.539-04 04 05.60         23.45GVEX071F51
     K17O68G  C2017 07 28.50516222 13 45.857+04 05 23.65         21.75GVEX071F51
     K17O68G  C2017 07 29.50874322 14 40.386+04 19 46.09         21.93GVEX071F51
     K17O68G  C2017 07 29.53582122 14 41.646+04 20 09.17         21.77GVEX071F51
     K17O68G  C2017 07 29.54910922 14 42.264+04 20 20.43         21.63GVEX071F51
     K17O68G  C2017 10 23.38318200 01 29.971+05 32 56.31         21.31GVEX071F51
     K17O68G  C2017 10 23.39527700 01 31.321+05 32 51.96         21.30GVEX071F51
     K17O68G  C2017 10 23.40740800 01 32.677+05 32 47.85         21.21GVEX071F51
     K17O68G KC2021 12 01.30137104 53 33.69 +16 04 41.2          21.99GVEX071V06
     K17O68G KC2021 12 01.30292904 53 33.55 +16 04 40.4          23.12GVEX071V06
     K17O68G KC2021 12 01.30448504 53 33.46 +16 04 39.7          22.98GVEX071V06
     K17O68G KC2021 12 01.30604004 53 33.31 +16 04 39.1          22.78GVEX071V06

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + 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, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector + 1K CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
130718 F51 0.04- 0.01-    211201 V06 0.05- 0.00-    MPO438037   +0.03 days

Orbital elements:
2017 OG68                                                Earth MOID = 0.2799 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M  36.64806              (2000.0)            P               Q                  
n   0.25186991     Peri.  144.72360     +0.99680572     -0.06139244             
a   2.4832390      Node   218.89369     +0.04056298     +0.94014094             
e   0.4861262      Incl.    4.66652     +0.06879687     +0.33521036             
P   3.91           H   21.96          G   0.15           U   0                  
Residuals in seconds of arc
130718 F51  0.4+  0.1+    170805 H21  0.5+  0.4-    170921 F51  0.0   0.0
130718 F51  0.2-  0.2+    170805 H21  0.7+  0.7-    170921 F51  0.1-  0.1-
130719 F51  0.1+  0.4-    170818 H21  0.6+  0.2+    170921 F51  0.1+  0.0
130719 F51  0.0   0.1-    170818 H21  0.3-  0.2+    170921 F51  0.0   0.1-
170625 F51  0.1+  0.2-    170824 754  0.8-  0.2+    170921 F51  0.0   0.1-
170726 F51  0.0   0.1-    170824 754  1.4-  0.2-    170926 G96  0.1-  0.1+
170726 F51  0.0   0.1-    170824 H21  0.3-  0.3+    170926 G96  0.4+  0.1+
170726 F51  0.2+  0.0     170824 754  0.1-  0.3-    170926 G96  0.2-  0.2+
170726 F51  0.1-  0.0     170824 H21  0.1+  0.3+    170926 G96  0.1-  0.2+
170728 F51  0.2-  0.0     170824 H21  0.2-  0.2+    171012 204  0.4+  0.3+
170729 F51  0.0   0.1+    170827 H21  0.2+  0.2+    171012 204  0.6-  0.0
170729 F51  0.1-  0.0     170827 H21  0.2+  0.0     171016 G96  0.1+  0.5+
170729 F51  0.1-  0.1-    170827 H21  0.2+  0.1+    171016 G96  0.7-  0.2+
170730 H21  0.2+  0.1+    170910 691  0.3+  0.0     171016 G96  0.1-  0.5+
170730 H21  0.2+  0.1-    170910 691  0.7+  0.2+    171016 G96  0.2-  0.1-
170730 H21  0.0   0.1-    170910 691  0.4+  0.0     171023 F51  0.1+  0.1-
170730 568  0.0   0.0     170911 H21  1.2+  0.4-    171023 F51  0.1+  0.2-
170730 T14  0.0   0.0     170911 H21  0.1+  0.6+    171023 F51  0.1+  0.0
170730 568  0.0   0.0     170917 J43  0.4+  0.0     171024 G96  0.3+  0.1-
170730 T14  0.0   0.0     170917 J43  0.3-  0.4-    171024 G96  0.3+  0.3-
170730 568  0.0   0.0     170917 J43  0.1+  0.3+    171024 G96  0.3-  0.1+
170730 T14  0.0   0.0     170917 J43  0.4+  0.4+    171118 807  0.1-  0.4-
170801 658  0.1-  0.9-    170920 H21  0.1-  0.4-    171118 807  0.4-  0.6-
170801 658  0.2-  0.9-    170920 H21  0.2+  0.1-    171118 807  0.0   0.1+
170801 658  0.3-  0.5-    170920 H21  0.1+  0.0     211201 V06  0.4+  0.3+
170802 291  0.0   0.1-    170920 204  0.2-  0.0     211201 V06  0.0   0.1+
170802 291  0.3-  0.1+    170921 204  0.3-  0.2-    211201 V06  0.2+  0.0
170805 H21  0.7+  0.5-    170921 F51  0.0   0.1-    211201 V06  0.4-  0.1-

Ephemeris:
2017 OG68                a,e,i = 2.48, 0.49, 5                   q = 1.2761
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 03    05 18 46.3 +19 46 10   0.5421  1.4502   140.1    26.0    22.6
...
2021 11 18    05 07 58.6 +17 37 02   0.5644  1.5252   157.4    14.4    22.4
...
2021 11 26    04 59 26.2 +16 37 56   0.5910  1.5682   166.8     8.3    22.4
...
2021 12 02    04 52 47.9 +16 00 48   0.6188  1.6015   172.4     4.7    22.3
2021 12 03    04 51 43.1 +15 55 18   0.6242  1.6071   172.9     4.3    22.4
2021 12 04    04 50 39.1 +15 50 02   0.6297  1.6127   173.2     4.1    22.4
...
2021 12 10    04 44 40.1 +15 23 02   0.6673  1.6471   170.8     5.5    22.6
...
2021 12 18    04 38 16.6 +14 59 45   0.7287  1.6937   162.7     9.9    23.1
...
2022 01 02    04 32 32.8 +14 52 11   0.8769  1.7831   146.8    17.6    23.9

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-X71




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