• Processing (Info)

    • MPEC 2018-Q04 : 2018 PH22

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.

    Read MPEC 2018-Q03 Read MPEC 2018-Q05 

    M.P.E.C. 2018-Q04                                Issued 2018 Aug. 16, 01:36 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 PH22

Observations:
     K18P22H* C2018 08 12.37290 20 59 34.067-03 22 09.99         20.9 wUEQ004F51
     K18P22H  C2018 08 12.39521 20 59 29.737-03 22 11.34         20.9 wUEQ004F51
     K18P22H  C2018 08 12.40630 20 59 27.583-03 22 12.06         20.9 wUEQ004F51
     K18P22H KC2018 08 13.13187220 57 12.08 -03 23 08.7          20.4 VuEQ004H21
     K18P22H KC2018 08 13.13932620 57 10.65 -03 23 09.0          20.6 VuEQ004H21
     K18P22H KC2018 08 13.28294020 56 41.92 -03 23 20.9          20.4 VuEQ004H21
     K18P22H KC2018 08 13.28982320 56 40.54 -03 23 21.3          20.4 VuEQ004H21
     K18P22H KC2018 08 14.15063020 53 52.59 -03 24 39.3          20.8 VuEQ004H21
     K18P22H KC2018 08 14.15398820 53 51.88 -03 24 39.5          20.6 VuEQ004H21
     K18P22H HC2018 08 14.29550 20 53 22.78 -03 24 50.9          21.1 RoEQ004691
     K18P22H HC2018 08 14.30823 20 53 20.08 -03 24 53.2          20.1 RoEQ004691
     K18P22H HC2018 08 14.32098 20 53 17.45 -03 24 55.3          20.2 RoEQ004691
     K18P22H KC2018 08 15.87193 20 47 52.88 -03 28 07.4                qEQ004204
     K18P22H KC2018 08 15.88283 20 47 50.41 -03 28 08.7          20.4 RqEQ004204
     K18P22H KC2018 08 15.89302720 47 48.01 -03 28 10.4          20.7 GVEQ004L01
     K18P22H HC2018 08 15.89372 20 47 47.95 -03 28 10.5                qEQ004204
     K18P22H KC2018 08 15.89615320 47 47.32 -03 28 10.9          20.7 GVEQ004L01

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector
    + CCD.
691 Steward Observatory, Kitt Peak.  Observer R. A. Mastaler.  0.9-m f/3
    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.  0.61-m f/4.5
    astrograph + CCD, 0.76-m f/3.0 astrograph + CCD.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, D. Ivanic, J. Minic,
    F. Hrzenjak, E. Pettarin, D. Vida.  Measurer D. Ivanic.  1.0-m f/2.9
    reflector + CCD.

Orbital elements:
2018 PH22                                           PHA, Earth MOID = 0.0432 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 260.24107              (2000.0)            P               Q
n   0.44250598     Peri.  225.59299     +0.32537518     -0.94519126
a   1.7055192      Node   205.45622     +0.88459785     +0.31445784
e   0.6306538      Incl.    3.63957     +0.33409224     +0.08791897
P   2.23           H   21.7           G   0.15           U   8
Residuals in seconds of arc
180812 F51  0.1+  0.1-    180813 H21  0.5-  0.5+    180815 204  0.1+  0.0
180812 F51  0.0   0.1-    180814 H21  0.3-  0.3+    180815 204  0.2-  0.2+
180812 F51  0.0   0.1-    180814 H21  0.4-  0.4+    180815 L01  0.1-  0.2-
180813 H21  0.5-  0.5+    180814 691  0.0   0.8+    180815 204  0.2-  0.0
180813 H21  0.2+  0.8+    180814 691  0.1-  0.2-    180815 L01  0.2+  0.3-
180813 H21  0.4-  0.3+    180814 691  0.9+  1.0-

Ephemeris:
2018 PH22                a,e,i = 1.71, 0.63, 4                   q = 0.6299
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 17    21 41 51.0 -04 27 47   0.6497  1.6004   146.9    20.3    22.8
...
2018 08 01    21 25 56.5 -03 30 55   0.4641  1.4635   162.1    12.3    21.6
...
2018 08 09    21 09 05.0 -03 20 33   0.3796  1.3867   167.3     9.3    20.9
...
2018 08 15    20 50 58.4 -03 25 54   0.3237  1.3275   164.3    11.9    20.6
2018 08 16    20 47 24.5 -03 28 04   0.3150  1.3175   163.2    12.8    20.5
2018 08 17    20 43 40.4 -03 30 38   0.3066  1.3074   161.9    13.9    20.5
...
2018 08 23    20 17 14.6 -03 54 30   0.2598  1.2464   151.8    22.5    20.3
...
2018 08 31    19 28 57.6 -04 49 31   0.2089  1.1631   133.4    39.1    20.2
...
2018 09 15    17 06 53.2 -06 56 33   0.1566  1.0034    84.6    86.4    20.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Q04

    Read MPEC 2018-Q03 Read MPEC 2018-Q05

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)