• MPC Preparation (Info)

  • MPEC 2018-H38 : 2018 HD

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    M.P.E.C. 2018-H38                                Issued 2018 Apr. 18, 17:47 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 HD
    
    Observations:
         K18H00D* C2018 04 16.35937 14 13 21.80 -12 32 48.6          19.8 GUEH038G96
         K18H00D  C2018 04 16.36454 14 13 29.46 -12 32 26.5          20.6 GUEH038G96
         K18H00D  C2018 04 16.37197 14 13 40.36 -12 31 55.7          20.6 GUEH038G96
         K18H00D  C2018 04 16.37715 14 13 47.96 -12 31 34.4          20.1 GUEH038G96
         K18H00D  C2018 04 16.42958 14 15 05.22 -12 27 52.7          19.9 GUEH038I52
         K18H00D  C2018 04 16.42999 14 15 05.90 -12 27 49.6                UEH038I52
         K18H00D  C2018 04 16.43040 14 15 06.47 -12 27 48.2          20.3 GUEH038I52
         K18H00D  C2018 04 16.43082 14 15 07.22 -12 27 46.9          21.4 GUEH038I52
         K18H00D KC2018 04 17.00938 14 29 39.86 -11 49 31.4          20.2 VqEH038I93
         K18H00D KC2018 04 17.02055 14 29 54.68 -11 48 46.8          20.4 VqEH038I93
         K18H00D KC2018 04 17.03163 14 30 09.29 -11 48 03.0          20.3 VqEH038I93
         K18H00D  C2018 04 18.33211514 57 19.73 -10 25 19.1          20.3 GUEH038H01
         K18H00D  C2018 04 18.33562614 57 23.33 -10 25 06.6          20.2 GUEH038H01
         K18H00D  C2018 04 18.34521 14 57 33.95 -10 24 28.7          20.4 GUEH038I52
         K18H00D  C2018 04 18.34639914 57 34.28 -10 24 28.5          20.6 GUEH038H01
         K18H00D  C2018 04 18.34714 14 57 35.95 -10 24 20.8          20.4 GUEH038I52
         K18H00D  C2018 04 18.35099 14 57 39.90 -10 24 06.9          20.8 GUEH038I52
         K18H00D  C2018 04 18.35318114 57 41.18 -10 24 04.3          20.4 GUEH038H01
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
        E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
        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 reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer J. A. Johnson.
        Measurers B. M. Africano, E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    
    Orbital elements:
    2018 HD                                                  Earth MOID = 0.0215 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 357.13947              (2000.0)            P               Q
    n   0.36564836     Peri.  341.10044     -0.99178846     +0.12291568
    a   1.9368395      Node   206.03771     -0.10450730     -0.93812172
    e   0.4767225      Incl.    4.61493     -0.07371482     -0.32375821
    P   2.70           H   27.3           G   0.15           U   7
    Residuals in seconds of arc
    180416 G96  0.2+  0.0     180416 I52  0.5-  0.1+    180418 H01  0.3+  0.2+
    180416 G96  0.7+  0.5+    180416 I52  1.4+  0.4-    180418 I52  0.8-  1.0-
    180416 G96  0.2-  0.3+    180417 I93  0.2-  0.1-    180418 H01  0.0   0.1+
    180416 G96  0.7-  0.1-    180417 I93  0.3+  0.3+    180418 I52  0.2-  0.0
    180416 I52  1.1-  0.9-    180417 I93  0.1-  0.0     180418 I52  0.5+  0.3+
    180416 I52  0.0   0.4+    180418 H01  0.0   0.2+    180418 H01  0.2+  0.1+
    
    Ephemeris:
    2018 HD                  a,e,i = 1.94, 0.48, 5                   q = 1.0135
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 03 19    06 48 45.9 -04 26 16   0.09695 1.0230   103.8    70.9    24.8
    ...
    2018 04 03    07 57 51.7 -09 04 02   0.04390 1.0142   108.1    69.5    23.0
    ...
    2018 04 11    10 59 32.7 -15 39 24   0.02411 1.0220   145.6    33.6    20.7
    ...
    2018 04 17    14 29 23.2 -11 46 12   0.03034 1.0334   167.6    12.1    20.5
    2018 04 18    14 50 57.2 -10 42 20   0.03307 1.0357   163.2    16.2    20.8
    2018 04 19    15 08 55.5 -09 44 21   0.03606 1.0382   159.7    19.6    21.2
    ...
    2018 04 25    16 10 24.4 -05 58 31   0.05715 1.0554   149.3    29.2    22.5
    ...
    2018 05 03    16 40 15.9 -03 59 57   0.08898 1.0845   148.1    29.4    23.5
    ...
    2018 05 18    16 53 30.0 -03 29 20   0.1554  1.1548   155.6    21.2    24.6
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-H38
    

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