[Iaude] MPEC U263: A/2017 U1

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Oct 28 22:51:16 EDT 2017


M.P.E.C. 2017-U263                               Issued 2017 Oct. 29, 02:44 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 http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   A/2017 U1
 
Observations:
    AK17U010 HC2017 10 26.82093 00 00 52.02 +04 55 12.8                UEU263204
    AK17U010 KC2017 10 26.83310 00 00 47.49 +04 55 18.7          21.4 GUEU263204
    AK17U010 HC2017 10 26.84527 00 00 42.99 +04 55 23.9                UEU263204
    AK17U010 KC2017 10 27.13044 23 59 02.09 +04 57 38.6          22.2 RuEU263850
    AK17U010 KC2017 10 27.14702 23 58 56.11 +04 57 46.7          21.8 RuEU263850
    AK17U010 KC2017 10 27.16382 23 58 50.16 +04 57 52.2          22.0 RuEU263850
    AK17U010 KC2017 10 27.21629 23 58 31.77 +04 58 15.9          21.6 RuEU263850
    AK17U010 KC2017 10 27.24829 23 58 20.73 +04 58 31.7          21.5 RuEU263850
    AK17U010  C2017 10 27.28540 23 58 08.17 +04 58 48.5          21.0 RoEU263926
    AK17U010  C2017 10 27.28910 23 58 06.94 +04 58 50.2          21.3 RoEU263926
    AK17U010  C2017 10 27.29280 23 58 05.66 +04 58 51.0          21.6 RoEU263926
    AK17U010 KC2017 10 27.78654 23 55 25.75 +05 02 16.0          22.3 GUEU263J95
    AK17U010 KC2017 10 27.88561 23 54 54.08 +05 03 20.7          21.8 GUEU263K91
    AK17U010 KC2017 10 27.88743 23 54 53.52 +05 03 21.6          21.8 GUEU263K91
    AK17U010 KC2017 10 27.88926 23 54 52.96 +05 03 22.2          21.8 GUEU263K91
    AK17U010 KC2017 10 27.90707 23 54 47.70 +05 03 05.3          22.1 GUEU263J95
    AK17U010 KC2017 10 28.04565 23 54 04.84 +05 04 00.5          22.0 GUEU263J95
    AK17U010 KC2017 10 28.19032623 53 22.13 +05 05 02.7          21.8 GUEU263H01
    AK17U010 KC2017 10 28.20151823 53 18.75 +05 05 06.9          22.0 GUEU263H01
    AK17U010 KC2017 10 28.20811823 53 16.78 +05 05 09.4          21.8 GUEU263H01
    AK17U010 KC2017 10 28.21918323 53 13.44 +05 05 13.8          22.2 GUEU263H01
 
Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.6 reflector
    + CCD.
850 Cordell-Lorenz Observatory, Sewanee.  Observers D. T. Durig,
    W. S. Chandler, H. H. Rice.  Measurers D. T. Durig, W. S. Chandler.  0.3-m
    f/7.6 Schmidt-Cassegrain + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.41-m f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien
    + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.
K91 Sutherland-LCO A.  Observers P. Miller, E. Gomez, S. Foglia, L. Buzzi,
    R. Holmes.  Measurers S. Foglia, L. Buzzi.  1.0-m f/8 Ritchey-Chretien
    + CCD.
 
Orbital elements:
    A/2017 U1
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5
T 2017 Sept.  9.47515 TT                                MPCW
q   0.2545457            (2000.0)            P               Q
z  -0.7756725      Peri.  241.55962     -0.63030970     +0.69262685
 +/-0.0044615      Node    24.60261     +0.50804675     +0.70955657
e   1.1974441      Incl.  122.61273     -0.58702486     -0.12960526
                   H   23.0           G   0.15
>From 85 observations 2017 Oct. 14-28, mean residual 0".5.

Ephemeris:
    A/2017 U1
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   V
2017 09 29    09 32 17.3 -06 17 48   0.5634  0.6973    42.3   104.7  21.0
...
2017 10 14    05 10 32.0 -03 01 05   0.1635  1.0897   120.5    52.1  19.3
...
2017 10 22    00 46 02.5 +03 56 03   0.3015  1.2873   163.6    12.6  20.9
...
2017 10 28    23 54 19.5 +05 03 55   0.4958  1.4312   145.8    22.9  22.3
2017 10 29    23 49 36.1 +05 10 12   0.5299  1.4549   143.8    23.8  22.4
2017 10 30    23 45 30.0 +05 15 48   0.5644  1.4784   141.8    24.5  22.6
...
2017 11 05    23 29 29.9 +05 41 21   0.7759  1.6182   132.2    27.0  23.5
...
2017 11 13    23 20 12.6 +06 07 13   1.0662  1.8004   122.2    27.7  24.4
...
2017 11 28    23 17 02.5 +06 54 45   1.6248  2.1317   106.9    26.3  25.7

Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-U263



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