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  • MPEC 2018-R74 : 2018 RA2

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    M.P.E.C. 2018-R74                                Issued 2018 Sept. 8, 23:49 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 RA2
    
    Observations:
         K18R02A* C2018 09 07.25281 22 34 54.32 -10 44 19.1          19.9 GVER074G96
         K18R02A  C2018 09 07.25846 22 34 53.37 -10 43 38.8          20.1 GVER074G96
         K18R02A  C2018 09 07.26409 22 34 52.42 -10 42 58.2          20.1 GVER074G96
         K18R02A  C2018 09 07.26972 22 34 51.47 -10 42 18.3          19.7 GVER074G96
         K18R02A  C2018 09 07.33045 22 34 41.16 -10 34 56.7          19.7 GVER074I52
         K18R02A  C2018 09 07.33087 22 34 41.11 -10 34 54.0          19.6 GVER074I52
         K18R02A  C2018 09 07.33129 22 34 41.03 -10 34 50.4          19.7 GVER074I52
         K18R02A  C2018 09 07.33170 22 34 40.97 -10 34 47.7          19.7 GVER074I52
         K18R02A KC2018 09 07.54538 22 34 16.84 -10 04 59.5          20.0 GVER074474
         K18R02A KC2018 09 07.54682 22 34 16.61 -10 04 48.6          19.8 GVER074474
         K18R02A KC2018 09 07.54826 22 34 16.39 -10 04 37.2          20.0 GVER074474
         K18R02A KC2018 09 07.54969 22 34 16.14 -10 04 26.4          19.8 GVER074474
         K18R02A KC2018 09 07.92030522 33 35.13 -09 19 30.9          19.7  UER074B04
         K18R02A KC2018 09 07.93536622 33 32.51 -09 17 27.9          19.6  UER074B04
         K18R02A pC2018 09 07.94142322 33 30.53 -09 16 36.8          20.0 GVER074L01
         K18R02A KC2018 09 07.94225122 33 31.29 -09 16 31.3          19.7  UER074B04
         K18R02A pC2018 09 07.94413722 33 30.08 -09 16 15.9          20.2 GVER074L01
         K18R02A  C2018 09 08.26262 22 32 50.49 -08 30 53.6          19.3 GVER074I52
         K18R02A  C2018 09 08.26304 22 32 50.42 -08 30 50.1          20.0 GVER074I52
         K18R02A  C2018 09 08.26345 22 32 50.34 -08 30 46.3          19.7 GVER074I52
         K18R02A  C2018 09 08.26387 22 32 50.27 -08 30 42.7          19.8 GVER074I52
         K18R02A  C2018 09 08.47525 22 32 21.88 -07 55 37.2          19.9 GVER074474
         K18R02A  C2018 09 08.47724 22 32 21.49 -07 55 19.1          19.7 GVER074474
         K18R02A  C2018 09 08.47922 22 32 21.10 -07 55 01.2          19.7 GVER074474
         K18R02A KC2018 09 08.86650 22 31 28.66 -06 57 42.8          19.2 GVER074104
         K18R02A KC2018 09 08.87453 22 31 27.07 -06 56 23.6          19.4 GVER074104
         K18R02A KC2018 09 08.88257 22 31 25.46 -06 55 04.3          19.2 GVER074104
         K18R02A KC2018 09 08.92729 22 31 16.44 -06 47 39.4          19.4 RqER074K63
         K18R02A KC2018 09 08.92991 22 31 15.87 -06 47 13.7          19.4 RqER074K63
         K18R02A KC2018 09 08.93280 22 31 15.27 -06 46 44.8          19.2 RqER074K63
    
    Observer details:
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m 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.
    B04 OAVdA, Saint-Barthelemy.  Observers A. Carbognani, D. Aldarese.  0.81-m
        f/4.7 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.  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.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.41-m
        f/3.2 Newtonian reflector + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2018 RA2                                                 Earth MOID = 0.0204 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 242.49500              (2000.0)            P               Q
    n   0.53539241     Peri.   61.37893     +0.69271491     -0.72055130
    a   1.5020622      Node   344.64973     +0.61431165     +0.61191083
    e   0.3996699      Incl.    6.69297     +0.37784554     +0.32614562
    P   1.84           H   25.7           G   0.15           U   6
    Residuals in seconds of arc
    180907 G96  0.1+  0.1+    180907 474  0.4+  0.2+    180908 I52  0.1+  0.1-
    180907 G96  0.0   0.0     180907 474  0.2+  0.0     180908 474  0.3+  0.2+
    180907 G96  0.0   0.2+    180907 B04  0.2+  0.1-    180908 474  0.2+  0.1+
    180907 G96  0.0   0.4-    180907 B04  0.2+  0.1+    180908 474  0.0   0.1-
    180907 I52  0.3-  0.1+    180907 L01  0.6-  0.8+    180908 104  0.1-  0.0
    180907 I52  0.0   0.3-    180907 B04  0.0   0.4+    180908 104  0.1-  0.1+
    180907 I52  0.2-  0.3+    180907 L01  0.1-  0.5-    180908 104  0.1-  0.1+
    180907 I52  0.0   0.0     180908 I52  0.2-  0.1-    180908 K63  0.3+  0.3+
    180907 474  0.0   0.1-    180908 I52  0.1-  0.3-    180908 K63  0.1-  0.2-
    180907 474  0.1+  0.2-    180908 I52  0.1-  0.1-    180908 K63  0.2-  0.3-
    
    Ephemeris:
    2018 RA2                 a,e,i = 1.50, 0.40, 7                   q = 0.9017
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 08 09    22 46 03.5 -24 15 27   0.2365  1.2351   157.0    18.7    24.0
    ...
    2018 08 24    22 46 29.6 -22 14 23   0.1370  1.1445   166.1    12.3    22.4
    ...
    2018 09 01    22 42 32.5 -18 27 33   0.08998 1.0980   170.0     9.2    21.3
    ...
    2018 09 07    22 35 20.2 -11 12 15   0.05734 1.0647   171.9     7.7    20.2
    2018 09 08    22 33 23.4 -09 06 25   0.05219 1.0593   171.5     8.0    20.0
    2018 09 09    22 31 04.7 -06 33 11   0.04715 1.0539   170.6     9.0    19.8
    ...
    2018 09 15    21 55 42.7 +31 22 53   0.02273 1.0230   138.7    40.4    19.1
    ...
    2018 09 23    11 55 18.3 +61 40 19   0.03918 0.9855    61.5   116.5    23.2
    ...
    2018 10 08    11 10 11.9 +39 45 25   0.1164  0.9309    51.2   123.2    26.0
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-R74
    

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