[Iaude] MPEC P104: 2018 PK21 [a=0.99,e=0.08,i=1.2,H=25.8]

Tue Aug 14 14:11:18 EDT 2018

M.P.E.C. 2018-P104                               Issued 2018 Aug. 14, 18:07 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 PK21
 
Observations:
     K18P21K  C2018 08 11.49540 22 25 58.831-02 22 35.49         20.2 wUEP104F51
     K18P21K* C2018 08 11.49616 22 25 58.521-02 22 35.80         20.2 wUEP104F51
     K18P21K  C2018 08 11.50739 22 25 53.900-02 22 40.99         20.2 wUEP104F51
     K18P21K  C2018 08 11.50816 22 25 53.585-02 22 41.29         20.3 wUEP104F51
     K18P21K  C2018 08 11.51938 22 25 48.975-02 22 46.43         19.7 wUEP104F51
     K18P21K  C2018 08 11.52015 22 25 48.654-02 22 46.73         19.7 wUEP104F51
     K18P21K  C2018 08 11.53224 22 25 43.719-02 22 52.23         20.1 wUEP104F51
     K18P21K KC2018 08 11.95789 22 23 30.97 -02 27 21.7          19.9 GVEP104104
     K18P21K KC2018 08 11.96325 22 23 28.92 -02 27 24.9          19.7 GVEP104104
     K18P21K KC2018 08 11.96861 22 23 26.88 -02 27 27.0          19.7 GVEP104104
     K18P21K KC2018 08 12.03874622 22 58.99 -02 28 02.7          20.5 GVEP104L01
     K18P21K KC2018 08 12.04135422 22 58.04 -02 28 03.3          20.4 GVEP104L01
     K18P21K KC2018 08 12.04440722 22 56.82 -02 28 05.3          20.5 GVEP104L01
     K18P21K KC2018 08 12.33388322 21 21.26 -02 30 09.5          20.0 VuEP104H21
     K18P21K KC2018 08 12.33628622 21 20.34 -02 30 10.2          20.3 VuEP104H21
     K18P21K KC2018 08 12.34049222 21 18.68 -02 30 12.6          20.2 VuEP104H21
     K18P21K KC2018 08 12.40441 22 20 55.26 -02 30 40.5          19.6 GUEP104734
     K18P21K KC2018 08 12.40869 22 20 53.66 -02 30 42.6          20.2 GUEP104734
     K18P21K KC2018 08 12.41265 22 20 52.08 -02 30 44.3          20.0 GUEP104734
     K18P21K |C2018 08 14.31697 22 10 40.59 -02 42 53.2          20.2 VuEP104807
     K18P21K |C2018 08 14.31967 22 10 39.57 -02 42 54.7          20.4 VuEP104807
     K18P21K |C2018 08 14.32275 22 10 38.40 -02 42 56.1          20.2 VuEP104807
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.6-m f/4.0 reflector + CCD.
734 Farpoint Observatory.  Observer G. Hug.  0.69-m reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 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.
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.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, D. Ivanic, M. Rakitic,
    L. Gelo, J. Minic, F. Hrzenjak, E. Pettarin.  Measurer M. Rakitic.  1.0-m
    f/2.9 reflector + CCD.
 
Orbital elements:
2018 PK21                                                Earth MOID = 0.0068 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 359.49584              (2000.0)            P               Q
n   1.00081781     Peri.  226.41221     -0.99239287     -0.12197852
a   0.9898424      Node   306.57461     +0.11808550     -0.90484624
e   0.0792018      Incl.    1.18885     +0.03481669     -0.40789033
P   0.98           H   25.8           G   0.15           U   6
Residuals in seconds of arc
180811 F51  0.0   0.0     180811 104  0.4-  1.1-    180812 734  0.0   0.3+
180811 F51  0.0   0.0     180811 104  0.2+  0.6-    180812 734  0.5+  0.1+
180811 F51  0.0   0.0     180812 L01  0.6-  0.1+    180812 734  0.6-  0.3+
180811 F51  0.1+  0.1+    180812 L01  0.3+  0.7+    180814 807  0.1+  0.1+
180811 F51  0.0   0.0     180812 L01  0.2-  0.1+    180814 807  0.0   0.1-
180811 F51  0.1-  0.1+    180812 H21  0.3+  0.3-    180814 807  0.2-  0.0
180811 F51  0.0   0.0     180812 H21  0.6+  0.2+
180811 104  0.8-  0.6-    180812 H21  0.3+  0.3-

Ephemeris:
2018 PK21                a,e,i = 0.99, 0.08, 1                   q = 0.9114
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 15    00 42 17.4 -01 48 58   0.04191 1.0269   103.2    74.6    21.6
...
2018 07 30    23 34 47.0 -01 22 42   0.04006 1.0429   132.9    45.5    20.6
...
2018 08 07    22 51 08.8 -01 50 46   0.04093 1.0500   150.4    28.5    20.2
...
2018 08 13    22 17 48.1 -02 33 19   0.04313 1.0546   162.9    16.4    20.0
2018 08 14    22 12 27.5 -02 41 43   0.04366 1.0553   164.7    14.7    19.9
2018 08 15    22 07 13.3 -02 50 23   0.04422 1.0559   166.4    13.0    19.9
...
2018 08 21    21 38 42.1 -03 44 49   0.04856 1.0596   170.0     9.5    20.0
...
2018 08 29    21 10 01.1 -04 55 04   0.05659 1.0633   159.9    19.0    20.7
...
2018 09 13    20 43 50.5 -06 36 53   0.07705 1.0668   140.3    37.0    21.9

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P104