• MPC Preparation (Info)

  • MPEC 2018-E40 : 2018 EA1

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    M.P.E.C. 2018-E40                                Issued 2018 Mar.  9, 21:28 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 EA1
    
    Observations:
         K18E01A* C2018 03 07.29233 10 28 03.041+14 26 36.47         21.3 wUEE040F51
         K18E01A  C2018 03 07.31305 10 27 58.809+14 26 39.51         21.2 wUEE040F51
         K18E01A  C2018 03 07.32338 10 27 56.691+14 26 41.01         21.2 wUEE040F51
         K18E01A  C2018 03 07.41303 10 27 37.62 +14 26 49.6          19.9 GUEE040I52
         K18E01A  C2018 03 07.41469 10 27 37.27 +14 26 49.0          19.9 GUEE040I52
         K18E01A  C2018 03 07.41636 10 27 36.89 +14 26 50.1          19.9 GUEE040I52
         K18E01A  C2018 03 07.41802 10 27 36.63 +14 26 50.0          19.9 GUEE040I52
         K18E01A  C2018 03 07.42049410 27 36.10 +14 26 49.4          21.0 GUEE040H01
         K18E01A  C2018 03 07.42440810 27 35.29 +14 26 49.7          21.0 GUEE040H01
         K18E01A  C2018 03 07.43756910 27 32.63 +14 26 51.2          21.0 GUEE040H01
         K18E01A  C2018 03 07.45042110 27 30.05 +14 26 52.6          20.7 GUEE040H01
         K18E01A |C2018 03 08.09286 10 25 23.22 +14 28 26.6          20.9 GUEE040807
         K18E01A |C2018 03 08.09826 10 25 22.18 +14 28 27.2          20.9 GUEE040807
         K18E01A |C2018 03 08.10383 10 25 20.98 +14 28 28.1          21.2 GUEE040807
         K18E01A KC2018 03 08.34773 10 24 31.60 +14 28 40.1          21.1 RoEE040291
         K18E01A KC2018 03 08.35072 10 24 31.03 +14 28 40.2          20.5 RoEE040291
         K18E01A KC2018 03 08.35372 10 24 30.38 +14 28 40.2          20.8 RoEE040291
         K18E01A KC2018 03 09.29564 10 21 23.45 +14 30 10.8          19.7 RoEE040691
         K18E01A KC2018 03 09.30461 10 21 21.65 +14 30 11.7                oEE040691
    
    Observer details:
    291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
    691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
        reflector + CCD.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
        M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
        M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
        1.8-m Ritchey-Chretien + 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.  Observers B. M. Africano,
        D. C. Fuls.  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.
    
    Orbital elements:
    2018 EA1                                                 Earth MOID = 0.1720 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 243.50030              (2000.0)            P               Q
    n   0.84075030     Peri.  332.31922     +0.77337576     +0.63182836
    a   1.1117949      Node   348.06290     -0.52548527     +0.59321105
    e   0.4760419      Incl.   14.50234     -0.35461973     +0.49889234
    P   1.17           H   20.7           G   0.15           U   9
    Residuals in seconds of arc
    180307 F51  0.0   0.1-    180307 H01  0.2+  0.0     180308 291  0.5-  0.4+
    180307 F51  0.0   0.0     180307 H01  0.0   0.1-    180308 291  0.1+  0.2+
    180307 F51  0.0   0.0     180307 H01  0.0   0.0     180308 291  0.5-  0.1-
    180307 I52  0.1-  0.6+    180307 H01  0.3+  0.1-    180309 691  0.2-  0.1-
    180307 I52  0.3-  0.2-    180308 807  0.4+  0.6-    180309 691  0.3+  0.1+
    180307 I52  0.9-  0.7+    180308 807  1.3+  0.6-
    180307 I52  0.2+  0.4+    180308 807  0.4+  0.4-
    
    Ephemeris:
    2018 EA1                 a,e,i = 1.11, 0.48, 15                  q = 0.5825
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 02 07    11 44 15.3 +12 10 18   0.7039  1.6150   145.2    20.4    22.0
    ...
    2018 02 22    11 10 09.1 +13 31 30   0.6041  1.5842   167.3     7.9    21.2
    ...
    2018 03 02    10 45 31.0 +14 10 17   0.5744  1.5628   173.1     4.3    20.9
    ...
    2018 03 08    10 25 41.4 +14 28 06   0.5640  1.5444   165.1     9.5    21.0
    2018 03 09    10 22 22.4 +14 29 49   0.5633  1.5412   163.5    10.5    21.1
    2018 03 10    10 19 04.2 +14 31 09   0.5628  1.5379   161.9    11.6    21.1
    ...
    2018 03 16    09 59 51.4 +14 30 46   0.5655  1.5169   151.8    18.0    21.3
    ...
    2018 03 24    09 37 17.0 +14 08 32   0.5822  1.4858   138.9    26.2    21.6
    ...
    2018 04 08    09 08 39.2 +12 36 54   0.6393  1.4177   117.9    38.6    22.0
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-E40
    

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