[Iaude] MPEC P52: 2018 PR9 [a=1.81,e=0.54,i=4.5,H=24.3]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2018-P52                                Issued 2018 Aug. 10, 15:46 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 PR9
 
Observations:
     K18P09R* C2018 08 08.45117 22 26 11.986-15 18 44.52         21.3 wUEP052F51
     K18P09R  C2018 08 08.46244 22 26 14.736-15 19 02.23         21.2 wUEP052F51
     K18P09R  C2018 08 08.47369 22 26 17.486-15 19 19.85         21.0 wUEP052F51
     K18P09R KC2018 08 08.97341122 28 38.444-15 32 37.85         21.4 GVEP052J04
     K18P09R KC2018 08 08.98031022 28 40.340-15 32 48.98         21.0 GVEP052J04
     K18P09R KC2018 08 08.98721022 28 42.251-15 33 01.47         21.6 GVEP052J04
     K18P09R KC2018 08 09.25768622 29 59.00 -15 40 43.3          20.7 VuEP052H21
     K18P09R KC2018 08 09.26747122 30 01.67 -15 40 59.6          20.9 VuEP052H21
     K18P09R KC2018 08 09.28191822 30 05.62 -15 41 24.3          20.5 VuEP052H21
     K18P09R KC2018 08 09.97334622 33 40.946-16 01 25.91         21.8 GVEP052J04
     K18P09R KC2018 08 09.97781222 33 42.279-16 01 34.43         20.7 GVEP052J04
     K18P09R KC2018 08 09.98227922 33 43.629-16 01 42.38         21.0 GVEP052J04
 
Observer details:
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, T. Vorobjov.  0.61-m
    f/4.0 astrograph + CCD, 0.76-m f/3.0 astrograph + 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 PR9                                                 Earth MOID = 0.0332 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 279.04384              (2000.0)            P               Q
n   0.40534737     Peri.  266.82843     +0.80163062     -0.59475077
a   1.8082195      Node   129.65705     +0.57495388     +0.73929169
e   0.5448562      Incl.    4.50693     +0.16375706     +0.31578366
P   2.43           H   24.3           G   0.15           U   8
Residuals in seconds of arc
180808 F51  0.1+  0.0     180808 J04  0.1-  0.9+    180809 H21  0.0   0.1-
180808 F51  0.0   0.0     180808 J04  0.8+  0.1+    180809 J04  0.1+  0.2-
180808 F51  0.0   0.1-    180809 H21  0.2+  0.4-    180809 J04  0.1-  0.2-
180808 J04  0.8-  0.2+    180809 H21  0.1+  0.0     180809 J04  0.1-  0.3+

Ephemeris:
2018 PR9                 a,e,i = 1.81, 0.54, 5                   q = 0.8230
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 11    21 31 20.5 -11 27 09   0.4174  1.3850   146.8    23.7    24.2
...
2018 07 26    21 50 40.6 -12 08 44   0.2617  1.2607   157.0    18.3    22.8
...
2018 08 03    22 07 17.3 -13 30 42   0.1881  1.1944   161.3    15.8    21.9
...
2018 08 09    22 28 43.1 -15 32 41   0.1371  1.1452   162.1    15.8    21.1
2018 08 10    22 33 46.2 -16 01 31   0.1290  1.1370   161.8    16.2    21.0
2018 08 11    22 39 28.2 -16 33 40   0.1210  1.1289   161.3    16.7    20.9
...
2018 08 17    23 37 46.4 -21 23 46   0.07692 1.0810   151.9    26.1    20.1
...
2018 08 25    03 51 28.9 -25 05 31   0.04652 1.0197    99.7    77.7    20.4
...
2018 09 09    08 08 26.2 -01 20 34   0.1337  0.9186    45.5   128.6    25.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P52