[Iaude] MPEC Q21: 2018 PT23 [a=2.37,e=0.67,i=0.9,H=24.6]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2018-Q21                                Issued 2018 Aug. 16, 22:12 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 PT23
 
Observations:
     K18P23T* C2018 08 15.18587 19 13 51.81 +20 24 46.5          18.78gUEQ021I41
     K18P23T  C2018 08 15.18622 19 13 50.89 +20 25 04.7          18.78gUEQ021I41
     K18P23T  C2018 08 15.32073 19 08 08.70 +22 26 15.7          18.15RUEQ021I41
     K18P23T  C2018 08 15.32108 19 08 07.77 +22 26 35.4          18.15RUEQ021I41
     K18P23T  C2018 08 16.32855 17 55 17.85 +43 04 18.7          18.36gUEQ021I41
     K18P23T  C2018 08 16.32890 17 55 15.28 +43 04 47.9          18.36gUEQ021I41
     K18P23T KC2018 08 16.86791516 25 49.16 +55 22 18.8                 EQ021J95
     K18P23T KC2018 08 16.86872516 25 38.18 +55 23 12.9                 EQ021J95
     K18P23T KC2018 08 16.86950216 25 27.61 +55 24 05.0          17.7 R EQ021J95
     K18P23T KC2018 08 16.87151 16 25 00.33 +55 26 18.9          17.7 RVEQ021J95
     K18P23T KC2018 08 16.87418 16 24 24.02 +55 29 15.8          17.7 RVEQ021J95
 
Observer details:
I41 Palomar Mountain--ZTF.  Observer A. U. Tomatic.  Measurers Q.-Z. Ye,
    D. Kaplan, A. J. Nielsen.  1.2-m f/2.4 Schmidt + ZTF camera.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
    + CCD.
 
Orbital elements:
2018 PT23                                                Earth MOID = 0.0133 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 308.87964              (2000.0)            P               Q
n   0.27079465     Peri.  180.91152     +0.88409562     -0.46725438
a   2.3661521      Node   206.94815     +0.42884187     +0.81714302
e   0.6698977      Incl.    0.87851     +0.18565986     +0.33756575
P   3.64           H   24.6           G   0.15           U   5
Residuals in seconds of arc
180815 I41  1.7+  0.6-    180816 I41  0.1+  0.1+    180816 J95  0.1-  0.1+
180815 I41  0.6+  0.7-    180816 I41  0.1+  0.6-    180816 J95  0.2-  0.2+
180815 I41  0.9-  1.1+    180816 J95  0.2+  0.1-    180816 J95  0.1-  0.1-
180815 I41  0.9-  1.3+    180816 J95  0.2+  0.1-

Ephemeris:
2018 PT23                a,e,i = 2.37, 0.67, 1                   q = 0.7811
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 17    20 35 47.7 -14 43 26   0.3047  1.3142   166.1    10.7    23.3
...
2018 08 01    20 30 10.0 -12 03 31   0.1495  1.1635   173.1     6.0    21.3
...
2018 08 09    20 18 02.7 -07 03 29   0.07407 1.0852   163.6    15.3    20.0
...
2018 08 15    19 20 15.6 +17 53 30   0.02245 1.0285   133.4    45.6    18.2
2018 08 16    18 28 28.4 +35 21 11   0.01649 1.0193   113.0    66.2    18.1
2018 08 17    15 55 25.5 +57 36 38   0.01442 1.0101    80.0    99.2    19.0
...
2018 08 23    09 13 11.9 +28 40 36   0.05816 0.9573    21.1   157.6    28.5
...
2018 08 31    08 55 55.8 +21 38 52   0.1327  0.8937    27.3   148.8    28.2
...
2018 09 15    09 00 24.9 +17 54 56   0.2843  0.8069    39.5   127.6    26.9

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Q21