• MPC Preparation (Info)

  • MPEC 2018-X71 : 2018 XH1

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    M.P.E.C. 2018-X71                                Issued 2018 Dec. 11, 04:05 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 XH1
    
    Observations:
         K18X01H* C2018 12 09.13215 03 00 52.27 +35 31 31.8          19.9 GVEX071G96
         K18X01H  C2018 12 09.13779 03 00 53.35 +35 32 58.8          19.7 GVEX071G96
         K18X01H  C2018 12 09.14342 03 00 54.42 +35 34 23.7          20.0 GVEX071G96
         K18X01H  C2018 12 09.14906 03 00 55.47 +35 35 50.4                VEX071G96
         K18X01H  C2018 12 09.18983403 01 02.00 +35 46 03.1          19.6 GVEX071H01
         K18X01H  C2018 12 09.19422403 01 02.81 +35 47 09.1          19.7 GVEX071H01
         K18X01H  C2018 12 09.20607703 01 04.99 +35 50 07.7          19.6 GVEX071H01
         K18X01H  C2018 12 09.21091603 01 05.88 +35 51 20.5          19.7 GVEX071H01
         K18X01H  C2018 12 09.21503 03 01 07.59 +35 52 28.2          19.7 GVEX071I52
         K18X01H  C2018 12 09.21593 03 01 07.76 +35 52 41.9          19.9 GVEX071I52
         K18X01H  C2018 12 09.21683 03 01 07.91 +35 52 55.6          19.9 GVEX071I52
         K18X01H  C2018 12 09.21773 03 01 08.09 +35 53 09.1          19.8 GVEX071I52
         K18X01H  C2018 12 09.28441 03 01 20.56 +36 09 47.8          19.7 GVEX071I52
         K18X01H  C2018 12 09.28622 03 01 20.91 +36 10 15.0          19.8 GVEX071I52
         K18X01H  C2018 12 09.28712 03 01 21.08 +36 10 28.3          19.7 GVEX071I52
         K18X01H KC2018 12 09.75889203 03 59.92 +38 12 32.0          20.2 GVEX071L01
         K18X01H KC2018 12 09.77022403 04 02.80 +38 15 38.8          20.1 GVEX071L01
         K18X01H KC2018 12 09.77279503 04 03.48 +38 16 21.8          20.1 GVEX071L01
         K18X01H KC2018 12 10.01139703 05 08.28 +39 21 10.9          19.6 GVEX071J95
         K18X01H KC2018 12 10.01726303 05 09.91 +39 22 47.0          20.3 GVEX071J95
         K18X01H KC2018 12 10.02495303 05 12.09 +39 24 52.7          20.4 GVEX071J95
         K18X01H  C2018 12 10.03797 03 05 13.87 +39 28 09.5          20.5 VSEX071033
         K18X01H  C2018 12 10.03900 03 05 14.18 +39 28 25.9          20.1 VSEX071033
         K18X01H  C2018 12 10.04002 03 05 14.50 +39 28 42.6          20.1 VSEX071033
         K18X01H  C2018 12 10.08636 03 05 54.41 +39 42 57.8          20.3 GVEX071I52
         K18X01H  C2018 12 10.08692 03 05 54.57 +39 43 07.4          20.9 GVEX071I52
         K18X01H  C2018 12 10.08749 03 05 54.75 +39 43 17.5          20.2 GVEX071I52
         K18X01H  C2018 12 10.08940 03 05 55.28 +39 43 51.1          19.3 GVEX071I52
         K18X01H KC2018 12 10.18997603 06 15.42 +40 12 19.0          19.6 VuEX071H21
         K18X01H KC2018 12 10.19531903 06 16.84 +40 13 48.7          20.2 VuEX071H21
         K18X01H KC2018 12 10.20229903 06 18.72 +40 15 46.3          19.8 VuEX071H21
         K18X01H KC2018 12 10.79750 03 10 29.52 +43 10 22.5          20.1  VEX071104
         K18X01H KC2018 12 10.80347 03 10 31.59 +43 12 13.7          19.7  VEX071104
         K18X01H KC2018 12 10.81541 03 10 35.76 +43 15 56.1          19.8  VEX071104
         K18X01H KC2018 12 10.85312 03 10 48.40 +43 27 28.8          19.1 RVEX071K51
         K18X01H KC2018 12 10.85502 03 10 49.07 +43 28 04.0          19.0 RVEX071K51
         K18X01H KC2018 12 10.85691 03 10 49.71 +43 28 39.1          19.0 RVEX071K51
         K18X01H KC2018 12 10.88994 03 11 01.89 +43 38 50.0          19.4 GVEX071587
         K18X01H KC2018 12 10.89238 03 11 02.69 +43 39 34.2          19.2 GVEX071587
         K18X01H KC2018 12 10.89320 03 11 02.99 +43 39 49.9          19.0 GVEX071587
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers C. Hoegner,
        B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    587 Sormano.  Observers M. Calcagno, A. Fumagalli, P. Sicoli, A. Testa.
        Measurer P. Sicoli.  0.5-m f/6.8 reflector + CCD.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers B. M. Africano,
        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, R. L. Seaman,
        F. C. Shelly.  1.5-m reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.61-m f/4.5
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers H. Groeller,
        G. J. Leonard.  Measurers B. M. Africano, 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, 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.
    K51 Osservatorio del Celado, Castello Tesino.  Observers G. Favero,
        R. Furgoni.  Measurer R. Furgoni.  0.80-m f/4 reflector + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2018 XH1                                                 Earth MOID = 0.0301 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M  48.34004              (2000.0)            P               Q
    n   0.41430635     Peri.   34.50997     -0.20832474     -0.97503776
    a   1.7820573      Node    67.62035     +0.87758873     -0.22102421
    e   0.4458470      Incl.    4.76582     +0.43178562     -0.02120528
    P   2.38           H   25.8           G   0.15           U   6
    Residuals in seconds of arc
    181209 G96  0.1+  0.1-    181209 I52  0.3-  0.2-    181210 H21  0.5-  0.3+
    181209 G96  0.1+  1.0+    181209 L01  0.4+  0.2+    181210 H21  0.6-  0.0
    181209 G96  0.1+  0.1+    181209 L01  0.0   0.4-    181210 H21  0.5-  0.2+
    181209 G96  0.1-  1.0+    181209 L01  0.2+  0.2+    181210 104  0.0   0.0
    181209 H01  0.3-  0.0     181210 J95  0.6+  0.6-    181210 104  0.2-  0.2-
    181209 H01  0.3-  0.2-    181210 J95  0.3+  0.1-    181210 104  0.0   0.2-
    181209 H01  0.2-  0.1-    181210 J95  0.2+  0.3+    181210 K51  0.2-  0.0
    181209 H01  0.2-  0.1-    181210 033  0.2-  0.2+    181210 K51  0.1-  0.1+
    181209 I52  0.2-  0.3-    181210 033  0.3-  0.1-    181210 K51  0.3-  0.2+
    181209 I52  0.2-  0.2-    181210 033  0.2-  0.1+    181210 587  0.0   0.5+
    181209 I52  0.3-  0.0     181210 I52  0.0   0.3+    181210 587  0.5-  0.4-
    181209 I52  0.2-  0.1-    181210 I52  0.0   0.1+    181210 587  0.4-  0.2+
    181209 I52  0.2-  0.4-    181210 I52  0.3+  0.3+
    181209 I52  0.3-  0.1-    181210 I52  0.2+  0.7+
    
    Ephemeris:
    2018 XH1                 a,e,i = 1.78, 0.45, 5                   q = 0.9875
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 11 11    02 43 01.4 +02 23 34   0.1522  1.1375   164.3    13.6    22.8
    ...
    2018 11 26    02 41 38.4 +09 00 56   0.08576 1.0662   156.6    21.6    21.7
    ...
    2018 12 04    02 47 09.6 +20 03 29   0.05570 1.0359   153.7    25.0    20.8
    ...
    2018 12 10    03 05 11.2 +39 18 54   0.03762 1.0175   149.5    29.4    20.0
    2018 12 11    03 11 52.0 +44 12 46   0.03534 1.0148   147.7    31.2    19.9
    2018 12 12    03 21 00.7 +49 41 05   0.03339 1.0122   145.3    33.7    19.8
    ...
    2018 12 18    09 35 50.6 +78 16 41   0.03099 0.9994   119.0    59.4    20.4
    ...
    2018 12 26    13 32 38.2 +48 06 57   0.04914 0.9894    95.5    81.6    22.1
    ...
    2019 01 10    13 57 24.4 +28 23 50   0.09798 0.9938    93.3    81.1    23.6
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X71
    

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    MPEC number:

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    • 1997-B01 (the full form)
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    • B01 (the abbreviated form)