[Iaude] MPEC P111: 2018 PU21 [a=1.31,e=0.06,i=15.9,H=22.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Aug 15 14:41:17 EDT 2018


M.P.E.C. 2018-P111                               Issued 2018 Aug. 15, 18:37 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 PU21
 
Observations:
     K18P21U* C2018 08 08.46115 22 24 57.501-08 24 08.59         21.3 wUEP111F51
     K18P21U  C2018 08 08.47240 22 24 56.993-08 24 36.98         21.9 wUEP111F51
     K18P21U  C2018 08 08.48368 22 24 56.484-08 25 05.49         21.6 wUEP111F51
     K18P21U KC2018 08 09.30019422 24 26.31 -08 59 51.0          21.6 VuEP111H21
     K18P21U KC2018 08 09.30750422 24 25.97 -09 00 09.9          21.7 VuEP111H21
     K18P21U KC2018 08 09.31420422 24 25.67 -09 00 27.1          21.5 VuEP111H21
     K18P21U KC2018 08 11.24659 22 23 08.27 -10 24 30.8          22.0 GUEP111734
     K18P21U KC2018 08 11.26543 22 23 07.29 -10 25 21.2          21.7 GUEP111734
     K18P21U KC2018 08 11.28425 22 23 06.33 -10 26 11.6          21.4 GUEP111734
     K18P21U |C2018 08 15.18191 22 20 02.67 -13 22 30.6          21.1 GUEP111807
     K18P21U |C2018 08 15.18606 22 20 02.45 -13 22 42.0          21.2 GUEP111807
     K18P21U |C2018 08 15.19081 22 20 02.15 -13 22 54.9          21.2 GUEP111807
 
Observer details:
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.  0.81-m f/4.0
    astrograph + CCD.
 
Orbital elements:
2018 PU21                                                Earth MOID = 0.2642 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 132.17065              (2000.0)            P               Q
n   0.65577111     Peri.  319.87696     -0.22237143     -0.96031187
a   1.3121028      Node   142.08227     +0.94995479     -0.25227672
e   0.0571844      Incl.   15.90239     +0.21940109     +0.11898556
P   1.50           H   22.3           G   0.15           U   7
Residuals in seconds of arc
180808 F51  0.0   0.0     180809 H21  0.2+  0.2-    180811 734  0.3-  0.3-
180808 F51  0.0   0.0     180809 H21  0.3+  0.2-    180815 807  0.2-  0.2-
180808 F51  0.0   0.0     180811 734  0.3+  0.4+    180815 807  0.2+  0.1-
180809 H21  0.2+  0.1-    180811 734  0.2-  0.1+    180815 807  0.0   0.3+

Ephemeris:
2018 PU21                a,e,i = 1.31, 0.06, 16                  q = 1.2371
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 16    22 26 18.2 +03 24 17   0.4722  1.3795   132.3    33.0    22.8
...
2018 07 31    22 28 21.5 -03 01 41   0.3988  1.3732   149.3    22.2    22.1
...
2018 08 08    22 25 13.5 -08 04 36   0.3715  1.3691   160.0    14.7    21.7
...
2018 08 14    22 21 01.4 -12 28 11   0.3583  1.3658   168.2     8.7    21.3
2018 08 15    22 20 11.6 -13 14 11   0.3567  1.3652   169.5     7.8    21.3
2018 08 16    22 19 19.8 -14 00 35   0.3554  1.3646   170.6     6.9    21.2
...
2018 08 22    22 13 36.9 -18 42 33   0.3515  1.3609   172.8     5.4    21.1
...
2018 08 30    22 05 19.3 -24 44 14   0.3573  1.3557   163.2    12.5    21.5
...
2018 09 14    21 52 44.5 -33 29 54   0.3976  1.3449   143.0    26.8    22.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P111



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