[Iaude] MPEC P42: 2018 PG9 [a=2.46,e=0.65,i=5.7,H=22.1]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Aug 10 11:11:17 EDT 2018


M.P.E.C. 2018-P42                                Issued 2018 Aug. 10, 15:07 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2018 PG9
 
Observations:
     K18P09G* C2018 08 05.39655 21 15 57.875-12 42 45.32         21.9 wUEP042F51
     K18P09G  C2018 08 05.40837 21 15 56.983-12 42 54.10         21.9 wUEP042F51
     K18P09G  C2018 08 05.42017 21 15 56.069-12 43 03.09         21.9 wUEP042F51
     K18P09G KC2018 08 06.32690 21 14 50.91 -12 54 39.3                oEP042291
     K18P09G KC2018 08 06.33139 21 14 50.53 -12 54 42.5                oEP042291
     K18P09G KC2018 08 06.33587 21 14 50.19 -12 54 45.7                oEP042291
     K18P09G IC2018 08 08.28454 21 12 21.46 -13 21 15.7                oEP042711
     K18P09G KC2018 08 08.28962 21 12 20.97 -13 21 20.1                oEP042711
     K18P09G KC2018 08 08.29343 21 12 20.65 -13 21 23.3                oEP042711
     K18P09G KC2018 08 09.22056121 11 05.40 -13 34 50.5          21.7 VuEP042H21
     K18P09G KC2018 08 09.22542321 11 04.97 -13 34 55.1          21.9 VuEP042H21
     K18P09G KC2018 08 09.23069021 11 04.51 -13 35 00.0          21.5 VuEP042H21
     K18P09G KC2018 08 09.27343 21 11 00.81 -13 35 37.6          21.9 GUEP042734
     K18P09G KC2018 08 09.29015 21 10 59.31 -13 35 53.1          22.6 GUEP042734
 
Observer details:
291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
    reducer.
734 Farpoint Observatory.  Observer G. Hug.  0.69-m reflector + 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.  1.3-m f/4.0
    astrograph + CCD.
 
Orbital elements:
2018 PG9                                                 Earth MOID = 0.0561 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 301.84782              (2000.0)            P               Q
n   0.25525789     Peri.  265.27512     +0.64638696     -0.76076742
a   2.4612171      Node   144.23548     +0.73369704     +0.59869746
e   0.6504290      Incl.    5.73998     +0.20945776     +0.25058788
P   3.86           H   22.1           G   0.15           U   9
Residuals in seconds of arc
180805 F51  0.1-  0.0     180806 291  0.0   0.2+    180809 H21  0.0   0.1+
180805 F51  0.1+  0.1+    180808 711  0.6+  0.0     180809 H21  0.2+  0.1-
180805 F51  0.0   0.0     180808 711  0.1-  0.1-    180809 734  0.2-  0.2+
180806 291  0.1+  0.4-    180808 711  0.0   0.0     180809 734  0.2-  0.5-
180806 291  0.2-  0.1-    180809 H21  0.1-  0.4+

Ephemeris:
2018 PG9                 a,e,i = 2.46, 0.65, 6                   q = 0.8604
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 11    21 30 04.6 -10 00 28   0.8037  1.7443   146.5    18.8    23.8
...
2018 07 26    21 25 15.4 -11 02 17   0.6102  1.6074   162.1    11.2    22.8
...
2018 08 03    21 18 36.0 -12 14 23   0.5222  1.5331   171.5     5.6    22.1
...
2018 08 09    21 11 23.5 -13 31 21   0.4634  1.4770   177.4     1.8    21.5
2018 08 10    21 09 59.7 -13 46 17   0.4542  1.4676   177.2     1.9    21.5
2018 08 11    21 08 32.4 -14 01 51   0.4452  1.4582   176.5     2.4    21.4
...
2018 08 17    20 58 36.7 -15 48 59   0.3949  1.4019   168.7     8.1    21.4
...
2018 08 25    20 42 12.3 -18 49 51   0.3373  1.3270   156.5    17.7    21.3
...
2018 09 09    20 01 45.9 -26 29 46   0.2541  1.1892   130.8    39.9    21.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P42



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