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  • MPEC 2018-R90 : 2018 RO2

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    M.P.E.C. 2018-R90                                Issued 2018 Sept.  9, 20:49 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2018 RO2
    
    Observations:
         K18R02O* C2018 09 07.20710 22 00 20.16 -11 45 50.3                VER090G96
         K18R02O  C2018 09 07.21275 22 00 20.21 -11 45 34.3          20.0 GVER090G96
         K18R02O  C2018 09 07.21840 22 00 20.25 -11 45 18.3          19.9 GVER090G96
         K18R02O  C2018 09 07.22404 22 00 20.31 -11 45 02.0          19.9 GVER090G96
         K18R02O  C2018 09 07.29315 22 00 20.78 -11 41 46.0          19.6 GVER090I52
         K18R02O  C2018 09 07.29356 22 00 20.77 -11 41 44.6          19.6 GVER090I52
         K18R02O  C2018 09 07.29714 22 00 20.85 -11 41 34.4          19.5 GVER090I52
         K18R02O  C2018 09 07.29838 22 00 20.81 -11 41 30.8          19.5 GVER090I52
         K18R02O KC2018 09 07.60279 22 00 25.64 -11 26 30.5          19.7 GVER090474
         K18R02O KC2018 09 07.60490 22 00 25.67 -11 26 24.9          19.8 GVER090474
         K18R02O KC2018 09 07.60701 22 00 25.68 -11 26 18.8          19.7 GVER090474
         K18R02O KC2018 09 07.60912 22 00 25.71 -11 26 12.7          19.8 GVER090474
         K18R02O  C2018 09 08.23437 22 00 38.62 -10 57 30.1          19.4 GVER090I52
         K18R02O  C2018 09 08.23544 22 00 38.60 -10 57 27.2          19.6 GVER090I52
         K18R02O  C2018 09 08.23652 22 00 38.63 -10 57 23.9          19.5 GVER090I52
         K18R02O  C2018 09 08.23759 22 00 38.64 -10 57 21.2          19.7 GVER090I52
         K18R02O  C2018 09 08.43779 22 00 42.62 -10 47 25.5          19.8 GVER090474
         K18R02O  C2018 09 08.43978 22 00 42.63 -10 47 20.2          19.9 GVER090474
         K18R02O  C2018 09 08.44177 22 00 42.65 -10 47 14.6          19.7 GVER090474
         K18R02O  C2018 09 08.44376 22 00 42.67 -10 47 09.0          19.6 GVER090474
         K18R02O  C2018 09 09.25981 22 00 58.66 -10 10 03.5          19.5 GVER090I52
         K18R02O  C2018 09 09.26022 22 00 58.66 -10 10 02.2          19.5 GVER090I52
         K18R02O  C2018 09 09.26297 22 00 58.68 -10 09 54.8          19.9 GVER090I52
         K18R02O  C2018 09 09.26572 22 00 58.73 -10 09 47.1          19.8 GVER090I52
    
    Observer details:
    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.
    G96 Mt. Lemmon Survey.  Observer B. M. Africano.  Measurers B. M. Africano,
        E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. L. Seaman, F. C. Shelly.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers J. A. Johnson,
        G. J. Leonard, R. A. Kowalski.  Measurers B. M. Africano,
        E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    
    Orbital elements:
    2018 RO2                                                 Earth MOID = 0.2742 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 326.92926              (2000.0)            P               Q
    n   0.22132331     Peri.  344.82946     +0.82064352     +0.56726401
    a   2.7067695      Node   340.13469     -0.50089180     +0.65598484
    e   0.5266399      Incl.   11.70909     -0.27504839     +0.49789098
    P   4.45           H   21.2           G   0.15           U   7
    Residuals in seconds of arc
    180907 G96  0.2-  0.0     180907 474  0.1+  0.2+    180908 474  0.2+  0.2+
    180907 G96  0.1-  0.0     180907 474  0.2+  0.2-    180908 474  0.0   0.0
    180907 G96  0.1-  0.0     180907 474  0.0   0.1-    180908 474  0.0   0.0
    180907 G96  0.2+  0.3+    180907 474  0.1+  0.0     180908 474  0.0   0.1+
    180907 I52  0.0   0.2-    180908 I52  0.1+  0.0     180909 I52  0.1+  0.1-
    180907 I52  0.2-  0.0     180908 I52  0.4-  0.1-    180909 I52  0.0   0.1+
    180907 I52  0.6+  0.0     180908 I52  0.1-  0.1+    180909 I52  0.1-  0.1-
    180907 I52  0.1-  0.1+    180908 I52  0.1-  0.1-    180909 I52  0.2+  0.0
    
    Ephemeris:
    2018 RO2                 a,e,i = 2.71, 0.53, 12                  q = 1.2813
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 08 10    21 56 59.0 -34 48 13   0.2866  1.2855   159.0    16.4    19.9
    ...
    2018 08 25    21 58 10.4 -22 53 14   0.2770  1.2827   167.5     9.9    19.6
    ...
    2018 09 02    21 59 06.9 -16 01 13   0.2869  1.2899   166.6    10.4    19.7
    ...
    2018 09 08    22 00 33.9 -11 08 10   0.3014  1.2992   163.2    12.9    19.9
    2018 09 09    22 00 53.3 -10 21 43   0.3044  1.3010   162.6    13.4    20.0
    2018 09 10    22 01 14.4 -09 36 03   0.3076  1.3030   161.9    13.9    20.0
    ...
    2018 09 16    22 03 55.9 -05 20 29   0.3300  1.3165   157.5    17.0    20.3
    ...
    2018 09 24    22 09 08.7 -00 32 17   0.3684  1.3391   151.7    20.8    20.7
    ...
    2018 10 09    22 23 31.1 +05 57 40   0.4642  1.3942   141.9    26.2    21.4
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-R90
    

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