• MPC Preparation (Info)

    • MPEC 2018-Q27 : 2018 PW23

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    M.P.E.C. 2018-Q27                                Issued 2018 Aug. 18, 02:04 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 PW23

Observations:
     K18P23W* C2018 08 12.37095 20 48 37.225-05 39 33.34         21.1 wUEQ027F51
     K18P23W  C2018 08 12.38209 20 48 37.455-05 39 22.06         21.1 wUEQ027F51
     K18P23W  C2018 08 12.39327 20 48 37.680-05 39 10.70         21.1 wUEQ027F51
     K18P23W  C2018 08 12.40437 20 48 37.906-05 38 59.51         21.1 wUEQ027F51
     K18P23W KC2018 08 13.20632120 49 04.31 -05 25 38.9          20.5 VuEQ027H21
     K18P23W KC2018 08 13.21275520 49 04.45 -05 25 32.7          20.4 VuEQ027H21
     K18P23W KC2018 08 13.21938220 49 04.64 -05 25 26.3          20.5 VuEQ027H21
     K18P23W _C2018 08 13.29463920 49 08.381-05 24 00.79         20.8 GUEQ027568
     K18P23W _C2018 08 13.29558720 49 08.403-05 23 59.84         20.9 GUEQ027568
     K18P23W _C2018 08 13.29653420 49 08.426-05 23 58.88         20.9 GUEQ027568
     K18P23W |C2018 08 15.10671 20 50 11.09 -04 53 38.3          21.2 GUEQ027807
     K18P23W |C2018 08 15.11084 20 50 11.23 -04 53 33.7          21.3 GUEQ027807
     K18P23W |C2018 08 15.11556 20 50 11.31 -04 53 29.5          21.3 GUEQ027807
     K18P23W KC2018 08 16.89460820 51 18.38 -04 25 25.7          20.8 RSEQ027L01
     K18P23W IC2018 08 16.91198320 51 18.94 -04 25 08.9          20.8 RSEQ027L01

Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, L. Wells.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + 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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
L01 Visnjan Observatory, Tican.  Observers F. Hrzenjak, D. Vida, E. Pettarin.
    Measurer D. Vida.  1.0-m f/2.9 reflector + CCD.

Orbital elements:
2018 PW23                                                Earth MOID = 0.2741 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 315.03424              (2000.0)            P               Q
n   0.27800388     Peri.   54.04587     +0.89569424     +0.43890667
a   2.3250670      Node   279.82307     -0.42773634     +0.80654895
e   0.4505892      Incl.    4.15330     -0.12154607     +0.39602996
P   3.55           H   22.5           G   0.15           U   7
Residuals in seconds of arc
180812 F51  0.1-  0.0     180813 H21  0.0   0.5-    180815 807  0.0   0.1-
180812 F51  0.0   0.0     180813 H21  0.6+  0.7-    180815 807  0.5+  0.5+
180812 F51  0.0   0.1+    180813 568  0.1-  0.0     180815 807  0.1-  0.1+
180812 F51  0.0   0.0     180813 568  0.1-  0.0     180816 L01  0.4-  0.1-
180813 H21  0.2+  0.2-    180813 568  0.1-  0.1+    180816 L01  0.1+  0.1+

Ephemeris:
2018 PW23                a,e,i = 2.33, 0.45, 4                   q = 1.2774
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 19    20 38 24.1 -12 50 34   0.3428  1.3517   166.3    10.2    21.5
...
2018 08 03    20 44 20.3 -08 24 02   0.2987  1.3104   170.6     7.3    21.0
...
2018 08 11    20 47 53.8 -06 02 41   0.2865  1.2948   167.4     9.8    21.0
...
2018 08 17    20 51 22.2 -04 23 22   0.2823  1.2862   164.0    12.5    21.0
2018 08 18    20 52 02.7 -04 07 36   0.2820  1.2851   163.4    13.0    21.1
2018 08 19    20 52 45.0 -03 52 06   0.2818  1.2840   162.8    13.5    21.1
...
2018 08 25    20 57 39.7 -02 24 54   0.2828  1.2792   159.2    16.3    21.2
...
2018 09 02    21 06 08.7 -00 46 00   0.2901  1.2774   154.7    19.7    21.3
...
2018 09 17    21 28 01.3 +01 25 15   0.3216  1.2881   147.5    24.8    21.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Q27

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