[Iaude] MPEC P77: 2018 PB20 [a=2.93,e=0.58,i=7.4,H=22.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Aug 12 17:13:17 EDT 2018


M.P.E.C. 2018-P77                                Issued 2018 Aug. 12, 21:09 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 PB20
 
Observations:
     K18P20B* C2018 08 08.54239 00 04 16.232-21 37 47.52         21.9 wUEP077F51
     K18P20B  C2018 08 08.55357 00 04 18.435-21 37 52.73         22.2 wUEP077F51
     K18P20B  C2018 08 08.56476 00 04 20.654-21 37 57.86         22.3 wUEP077F51
     K18P20B |C2018 08 10.23861 00 10 10.53 -21 50 14.2          21.9 GUEP077807
     K18P20B |C2018 08 10.24463 00 10 11.74 -21 50 17.0          21.7 GUEP077807
     K18P20B |C2018 08 10.25070 00 10 12.95 -21 50 19.7          21.8 GUEP077807
     K18P20B _C2018 08 10.54907000 11 14.949-21 52 53.42         21.7 GVEP077568
     K18P20B _C2018 08 10.55001700 11 15.137-21 52 53.87         21.8 GVEP077568
     K18P20B _C2018 08 10.55096100 11 15.324-21 52 54.30         21.9 GVEP077568
     K18P20B KC2018 08 11.65049 00 15 06.69 -22 00 33.1          21.7 GVEP077474
     K18P20B KC2018 08 11.65400 00 15 07.40 -22 00 34.9          21.6 GVEP077474
     K18P20B KC2018 08 11.65752 00 15 08.09 -22 00 35.4          21.5 GVEP077474
 
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.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  1.00-m f/10.0 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.
 
Orbital elements:
2018 PB20                                                Earth MOID = 0.2664 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 325.13886              (2000.0)            P               Q
n   0.19633142     Peri.  262.23382     +0.99159062     +0.02029964
a   2.9318574      Node    96.53908     +0.03019595     +0.92406946
e   0.5802032      Incl.    7.39154     -0.12584217     +0.38168514
P   5.02           H   22.3           G   0.15           U   8
Residuals in seconds of arc
180808 F51  0.0   0.1+    180810 807  0.0   0.1-    180810 568  0.0   0.1-
180808 F51  0.1-  0.0     180810 807  0.1-  0.1+    180811 474  0.1+  0.1-
180808 F51  0.1+  0.0     180810 568  0.0   0.0     180811 474  0.1+  0.4-
180810 807  0.0   0.1-    180810 568  0.0   0.1-    180811 474  0.2-  0.7+

Ephemeris:
2018 PB20                a,e,i = 2.93, 0.58, 7                   q = 1.2308
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 13    22 42 40.4 -18 35 52   0.5365  1.4437   134.4    30.2    23.1
...
2018 07 28    23 26 06.4 -20 09 14   0.4273  1.3639   138.2    29.8    22.4
...
2018 08 05    23 52 09.7 -21 10 13   0.3826  1.3273   139.0    30.1    22.1
...
2018 08 11    00 12 49.5 -21 55 57   0.3552  1.3031   139.1    30.6    21.9
2018 08 12    00 16 20.3 -22 03 14   0.3511  1.2993   139.1    30.7    21.9
2018 08 13    00 19 52.2 -22 10 22   0.3471  1.2957   139.1    30.8    21.9
...
2018 08 19    00 41 16.4 -22 48 33   0.3265  1.2756   138.7    31.6    21.7
...
2018 08 27    01 09 41.8 -23 21 12   0.3061  1.2543   137.8    32.7    21.6
...
2018 09 11    01 57 23.5 -23 01 47   0.2872  1.2324   136.9    33.9    21.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P77



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