[Iaude] MPEC P43: 2018 PH9 [a=2.08,e=0.46,i=3.4,H=24.1]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Aug 10 11:15:16 EDT 2018


M.P.E.C. 2018-P43                                Issued 2018 Aug. 10, 15:11 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 PH9
 
Observations:
     K18P09H* C2018 08 07.33076 19 16 05.979-27 12 54.16         21.1 wUEP043F51
     K18P09H  C2018 08 07.34114 19 16 08.795-27 12 29.80         20.6 wUEP043F51
     K18P09H  C2018 08 07.35151 19 16 11.605-27 12 05.04         21.0 wUEP043F51
     K18P09H  C2018 08 07.36190 19 16 14.413-27 11 40.15         20.9 wUEP043F51
     K18P09H _C2018 08 08.36610319 21 21.153-26 30 48.87         20.8 GUEP043568
     K18P09H _C2018 08 08.36705019 21 21.413-26 30 46.52         20.8 GUEP043568
     K18P09H _C2018 08 08.36799519 21 21.673-26 30 44.17         21.1 GUEP043568
     K18P09H KC2018 08 08.89296519 24 06.622-26 08 48.85         19.6 GVEP043J04
     K18P09H KC2018 08 08.90177819 24 09.175-26 08 27.74         20.3 GVEP043J04
     K18P09H KC2018 08 09.20840 19 25 42.66 -25 55 30.7                oEP043711
     K18P09H KC2018 08 09.21180 19 25 43.64 -25 55 22.0                oEP043711
     K18P09H KC2018 08 09.21529 19 25 44.61 -25 55 12.9                oEP043711
     K18P09H KC2018 08 10.36745 19 31 48.44 -25 03 33.8          20.7 GVEP043474
     K18P09H KC2018 08 10.36886 19 31 48.90 -25 03 29.3          21.0 GVEP043474
     K18P09H KC2018 08 10.37169 19 31 49.72 -25 03 22.5          21.1 GVEP043474
     K18P09H KC2018 08 10.37311 19 31 50.13 -25 03 19.3          21.2 GVEP043474
 
Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
    reducer.
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.
J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
    M. Micheli, D. Koschny, M. Busch, E. Schwab, A. Knoefel.  1.0-m f/4.4
    reflector + CCD.
 
Orbital elements:
2018 PH9                                                 Earth MOID = 0.1062 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 312.66876              (2000.0)            P               Q
n   0.32965787     Peri.  357.39256     +0.74241753     +0.66888331
a   2.0753615      Node   320.54088     -0.61358096     +0.65638176
e   0.4602947      Incl.    3.38887     -0.26895095     +0.34893854
P   2.99           H   24.1           G   0.15           U   7
Residuals in seconds of arc
180807 F51  0.0   0.0     180808 568  0.0   0.1-    180810 474  0.3-  0.3-
180807 F51  0.0   0.1-    180808 J04  0.3-  0.5+    180810 474  0.3+  0.6+
180807 F51  0.0   0.0     180808 J04  0.5+  0.0     180810 474  0.1+  0.0
180807 F51  0.1-  0.1+    180809 711  0.2-  0.1-    180810 474  0.0   0.5-
180808 568  0.0   0.1-    180809 711  0.1+  0.1-
180808 568  0.0   0.1-    180809 711  0.1-  0.1+

Ephemeris:
2018 PH9                 a,e,i = 2.08, 0.46, 3                   q = 1.1201
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 11    17 45 52.1 -36 36 14   0.1760  1.1786   155.1    21.3    21.7
...
2018 07 26    18 22 32.6 -33 23 05   0.1389  1.1386   150.4    26.1    21.3
...
2018 08 03    18 55 07.9 -29 49 31   0.1256  1.1261   150.9    26.0    21.0
...
2018 08 09    19 24 37.3 -26 03 23   0.1194  1.1212   152.6    24.6    20.9
2018 08 10    19 29 50.2 -25 20 15   0.1187  1.1208   152.9    24.3    20.9
2018 08 11    19 35 06.8 -24 35 42   0.1181  1.1204   153.3    23.9    20.8
...
2018 08 17    20 07 28.9 -19 44 06   0.1173  1.1207   156.0    21.6    20.7
...
2018 08 25    20 49 32.9 -12 49 27   0.1234  1.1271   159.2    18.5    20.8
...
2018 09 09    21 53 23.9 -02 13 22   0.1569  1.1568   161.0    16.5    21.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P43



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