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  • MPEC 2018-R46 : 2018 RX

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    M.P.E.C. 2018-R46                                Issued 2018 Sept. 8, 02:09 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 RX
    
    Observations:
         K18R00X* C2018 09 04.34898 02 08 58.89 -00 40 46.6                VER046703
         K18R00X  C2018 09 04.35568 02 09 00.44 -00 41 03.1          19.2 GVER046703
         K18R00X  C2018 09 04.36112 02 09 01.66 -00 41 16.0          19.3 GVER046703
         K18R00X  C2018 09 04.36656 02 09 02.91 -00 41 29.1          19.5 GVER046703
         K18R00X  C2018 09 04.43505 02 09 18.18 -00 44 16.4          19.3 GVER046I52
         K18R00X  C2018 09 04.43529 02 09 18.23 -00 44 17.0          19.1 GVER046I52
         K18R00X  C2018 09 04.43705 02 09 18.63 -00 44 21.2          19.4 GVER046I52
         K18R00X  C2018 09 04.43729 02 09 18.68 -00 44 21.8          19.3 GVER046I52
         K18R00X  C2018 09 04.57200 02 09 50.18 -00 49 27.8          19.3 GVER046474
         K18R00X  C2018 09 04.57399 02 09 50.62 -00 49 33.1          19.7 GVER046474
         K18R00X  C2018 09 04.57598 02 09 51.05 -00 49 37.9          19.5 GVER046474
         K18R00X  C2018 09 04.57796 02 09 51.54 -00 49 42.1          19.6 GVER046474
         K18R00X KC2018 09 04.98972802 11 27.18 -01 07 10.8          19.7 GVER046L01
         K18R00X KC2018 09 04.99205202 11 27.71 -01 07 16.9          19.5 GVER046L01
         K18R00X KC2018 09 04.99476702 11 28.33 -01 07 23.8          19.9 GVER046L01
         K18R00X KC2018 09 05.01438 02 11 32.91 -01 08 12.5          20.0 RqER046K63
         K18R00X KC2018 09 05.01707 02 11 33.51 -01 08 19.4          20.2 RqER046K63
         K18R00X KC2018 09 05.01899 02 11 33.98 -01 08 24.4          20.3 RqER046K63
         K18R00X KC2018 09 05.02094 02 11 34.41 -01 08 29.2          19.9 RqER046K63
         K18R00X KC2018 09 05.02287 02 11 34.85 -01 08 33.8          19.8 RqER046K63
         K18R00X KC2018 09 05.04940 02 11 40.91 -01 09 41.3                VER046204
         K18R00X KC2018 09 05.05749 02 11 42.75 -01 10 01.7                VER046204
         K18R00X KC2018 09 05.06557 02 11 44.58 -01 10 21.9          19.3 GVER046204
         K18R00X  C2018 09 05.34962 02 12 51.56 -01 22 16.4          17.1 GVER046I52
         K18R00X  C2018 09 05.35090 02 12 51.87 -01 22 19.7          17.1 GVER046I52
         K18R00X  C2018 09 05.35292 02 12 52.34 -01 22 24.8          17.2 GVER046I52
         K18R00X  C2018 09 05.35567 02 12 52.97 -01 22 31.9          16.8 GVER046I52
         K18R00X  C2018 09 05.38480 02 12 59.79 -01 23 46.8          18.98rUER046I41
         K18R00X  C2018 09 05.43111 02 13 10.40 -01 25 44.9          19.61gUER046I41
         K18R00X  C2018 09 05.44230 02 13 12.64 -01 26 12.1          18.9 RoER046711
         K18R00X  C2018 09 05.44292 02 13 12.78 -01 26 13.8          19.0 RoER046711
         K18R00X  C2018 09 05.44354 02 13 12.93 -01 26 15.3          19.0 RoER046711
         K18R00X  C2018 09 05.44417 02 13 13.07 -01 26 16.8          19.0 RoER046711
         K18R00X  C2018 09 05.44477 02 13 13.21 -01 26 18.5          19.2 RoER046711
         K18R00X  C2018 09 05.44540 02 13 13.36 -01 26 20.0          19.0 RoER046711
         K18R00X  C2018 09 05.44705 02 13 14.06 -01 26 25.8          19.69gUER046I41
         K18R00X  C2018 09 05.44802 02 13 14.27 -01 26 28.2          19.63gUER046I41
         K18R00X KC2018 09 05.58311 02 13 46.54 -01 31 48.9          18.9 GVER046474
         K18R00X KC2018 09 05.58594 02 13 47.20 -01 31 56.5          19.2 GVER046474
         K18R00X KC2018 09 05.58877 02 13 47.85 -01 32 03.6          19.4 GVER046474
         K18R00X KC2018 09 05.97629 02 15 20.35 -01 49 16.5          18.8  VER046104
         K18R00X KC2018 09 05.98050 02 15 21.34 -01 49 27.7          19.2  VER046104
         K18R00X KC2018 09 05.98469 02 15 22.34 -01 49 38.6          19.2  VER046104
         K18R00X KC2018 09 06.10709 02 15 51.19 -01 55 01.0          19.2 GVER046J95
         K18R00X KC2018 09 06.10944 02 15 51.71 -01 55 07.4          19.0 GVER046J95
         K18R00X KC2018 09 06.11178 02 15 52.26 -01 55 13.0          19.2 GVER046J95
         K18R00X  C2018 09 06.30713 02 16 39.98 -02 03 44.6          19.1 GVER046I52
         K18R00X  C2018 09 06.30809 02 16 40.23 -02 03 47.4          19.2 GVER046I52
         K18R00X  C2018 09 06.30907 02 16 40.44 -02 03 49.5          18.8 GVER046I52
         K18R00X  C2018 09 06.31095 02 16 40.88 -02 03 55.0          19.3 GVER046I52
         K18R00X  C2018 09 07.32424 02 20 48.51 -02 49 43.4          19.1 GVER046I52
         K18R00X  C2018 09 07.32546 02 20 48.80 -02 49 46.6          18.9 GVER046I52
         K18R00X  C2018 09 07.32737 02 20 49.26 -02 49 52.0          18.9 GVER046I52
         K18R00X  C2018 09 07.32953 02 20 49.77 -02 49 57.7          19.2 GVER046I52
         K18R00X  C2018 09 07.36050 02 20 57.40 -02 51 23.3          19.1 GVER046703
         K18R00X  C2018 09 07.36581 02 20 58.68 -02 51 38.5          18.7 GVER046703
         K18R00X  C2018 09 07.37112 02 20 59.96 -02 51 53.7          18.4 GVER046703
         K18R00X  C2018 09 07.37643 02 21 01.15 -02 52 07.5          18.6 GVER046703
    
    Observer details:
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 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.
    703 Catalina Sky Survey.  Observers G. J. Leonard, J. A. Johnson.  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.  0.68-m Schmidt + 10K CCD.
    711 McDonald Observatory.  Observers K. Sarneczky, J. Vinko, M. Rozsahegyi.
        Measurer K. Sarneczky.  2.7-m reflector + CCD.
    I41 Palomar Mountain--ZTF.  Observer A. U. Tomatic.  Measurers Q.-Z. Ye,
        F. Masci.  1.2-m f/2.4 Schmidt + ZTF camera.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers H. Groeller,
        R. A. Kowalski, B. M. Africano, J. A. Johnson.  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.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
        + 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 RX                                                  Earth MOID = 0.2704 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 293.71096              (2000.0)            P               Q
    n   0.27728062     Peri.  265.62776     +0.31162792     -0.94522898
    a   2.3291084      Node   165.06869     +0.95020125     +0.30974007
    e   0.5751529      Incl.   22.14105     +0.00237294     +0.10297215
    P   3.55           H   19.3           G   0.15           U   8
    Residuals in seconds of arc
    180904 703  1.0-  0.1-    180905 204  0.3+  0.2-    180905 104  0.2-  0.3-
    180904 703  0.2-  0.3-    180905 204  0.2+  0.2-    180905 104  0.2-  0.5-
    180904 703  0.2-  0.0     180905 204  0.0   0.1-    180905 104  0.1+  0.4-
    180904 703  0.3+  0.2+    180905 I52  0.2-  0.0     180906 J95  0.3+  0.1+
    180904 I52  0.0   0.1-    180905 I52  0.1+  0.0     180906 J95  0.2-  0.1-
    180904 I52  0.1-  0.1-    180905 I52  0.2+  0.0     180906 J95  0.2-  0.4+
    180904 I52  0.0   0.0     180905 I52  0.2+  0.1-    180906 I52  0.3-  0.0
    180904 I52  0.0   0.0     180905 I41  0.7+  0.5-    180906 I52  0.1+  0.2-
    180904 474  0.0   0.1+    180905 I41  0.7+  0.5-    180906 I52  0.3-  0.3+
    180904 474  0.2-  0.4-    180905 711  0.4-  0.2+    180906 I52  0.3-  0.3-
    180904 474  0.4-  0.3-    180905 711  0.5-  0.0     180907 I52  0.6-  0.3-
    180904 474  0.2+  0.4+    180905 711  0.3-  0.1+    180907 I52  0.7-  0.2-
    180904 L01  0.2-  0.5+    180905 711  0.4-  0.2+    180907 I52  0.7-  0.3-
    180904 L01  0.2-  0.3+    180905 711  0.4-  0.1+    180907 I52  0.9-  0.0
    180904 L01  0.2-  0.2+    180905 711  0.3-  0.2+    180907 703  1.2+  0.4+
    180905 K63  0.4+  0.3+    180905 I41  0.8+  0.6-    180907 703  1.2+  0.0
    180905 K63  0.2+  0.2+    180905 I41  0.6+  0.6-    180907 703  1.1+  0.5-
    180905 K63  0.7+  0.0     180905 474  0.1+  0.2+    180907 703  0.3-  0.5+
    180905 K63  0.4+  0.1+    180905 474  0.1+  0.1-
    180905 K63  0.4+  0.3+    180905 474  0.1+  0.1+
    
    Ephemeris:
    2018 RX                  a,e,i = 2.33, 0.58, 22                  q = 0.9895
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 08 09    00 52 25.1 +08 56 28   0.7693  1.5534   120.6    34.2    21.1
    ...
    2018 08 24    01 30 56.5 +05 12 41   0.5745  1.4349   127.5    34.0    20.3
    ...
    2018 09 01    01 56 40.5 +01 25 08   0.4860  1.3727   129.9    34.3    19.8
    ...
    2018 09 07    02 19 27.6 -02 34 37   0.4287  1.3269   130.5    35.3    19.5
    2018 09 08    02 23 36.4 -03 21 08   0.4200  1.3194   130.4    35.5    19.5
    2018 09 09    02 27 51.8 -04 09 36   0.4116  1.3119   130.3    35.8    19.4
    ...
    2018 09 15    02 55 55.1 -09 41 18   0.3674  1.2676   128.5    38.4    19.2
    ...
    2018 09 23    03 40 58.2 -18 36 06   0.3270  1.2110   122.5    44.4    19.0
    ...
    2018 10 08    05 28 14.7 -35 09 46   0.3129  1.1158   103.7    60.5    19.2
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-R46
    

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