[Iaude] MPEC P101: 2018 PG21 [a=2.55,e=0.65,i=16.2,H=19.1]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2018-P101                               Issued 2018 Aug. 14, 17:56 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 PG21
 
Observations:
     K18P21G* C2018 08 08.55164 00 54 53.748-19 10 09.25         22.5 wUEP101F51
     K18P21G  C2018 08 08.56282 00 54 53.156-19 10 14.25         21.8 wUEP101F51
     K18P21G  C2018 08 08.57400 00 54 52.554-19 10 19.75         21.9 wUEP101F51
     K18P21G  C2018 08 08.58513 00 54 51.918-19 10 24.65         22.2 wUEP101F51
     K18P21G |C2018 08 10.37739 00 53 14.95 -19 24 25.6          22.0 GUEP101807
     K18P21G |C2018 08 10.38307 00 53 14.62 -19 24 28.3          22.0 GUEP101807
     K18P21G |C2018 08 10.38954 00 53 14.23 -19 24 31.3          21.9 GUEP101807
     K18P21G |C2018 08 12.33269 00 51 20.30 -19 39 56.4          21.8 GUEP101807
     K18P21G |C2018 08 12.34012 00 51 19.83 -19 39 59.9          22.2 GUEP101807
     K18P21G |C2018 08 12.34780 00 51 19.34 -19 40 03.5          21.8 GUEP101807
     K18P21G |C2018 08 14.39250 00 49 09.27 -19 56 18.7          22.5 GUEP101807
     K18P21G |C2018 08 14.39809 00 49 08.89 -19 56 20.7          22.3 GUEP101807
     K18P21G |C2018 08 14.40449 00 49 08.46 -19 56 24.2          22.2 GUEP101807
 
Observer details:
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 PG21                                                Earth MOID = 0.0921 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M   1.82110              (2000.0)            P               Q
n   0.24146750     Peri.  188.81683     -0.68118549     +0.71125522
a   2.5540550      Node    38.54173     -0.65357895     -0.48400974
e   0.6456303      Incl.   16.16794     -0.32988009     -0.50975541
P   4.08           H   19.1           G   0.15           U   7
Residuals in seconds of arc
180808 F51  0.1-  0.2-    180810 807  0.0   0.0     180814 807  0.1-  0.4-
180808 F51  0.1+  0.0     180810 807  0.1-  0.1+    180814 807  0.0   0.3+
180808 F51  0.3+  0.2-    180812 807  0.1+  0.0     180814 807  0.1+  0.2-
180808 F51  0.1-  0.2+    180812 807  0.1+  0.0
180810 807  0.1-  0.0     180812 807  0.1+  0.1+

Ephemeris:
2018 PG21                a,e,i = 2.55, 0.65, 16                  q = 0.9051
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 15    01 03 05.8 -16 35 22   1.2438  1.7802   103.5    33.7    22.2
...
2018 07 30    01 01 09.9 -17 59 12   1.2172  1.9104   117.4    28.2    22.2
...
2018 08 07    00 56 10.8 -18 57 59   1.2083  1.9783   125.6    24.7    22.1
...
2018 08 13    00 50 39.0 -19 45 16   1.2063  2.0284   131.9    21.8    22.1
2018 08 14    00 49 35.2 -19 53 12   1.2065  2.0367   133.0    21.3    22.1
2018 08 15    00 48 29.0 -20 01 08   1.2068  2.0449   134.0    20.9    22.1
...
2018 08 21    00 41 06.3 -20 47 41   1.2126  2.0941   140.4    17.9    22.1
...
2018 08 29    00 29 34.0 -21 43 20   1.2317  2.1586   148.5    14.1    22.0
...
2018 09 13    00 05 14.7 -22 49 21   1.3095  2.2761   158.6     9.3    22.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P101