• MPC Preparation (Info)

  • MPEC 2017-Q21 : 2017 QA

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    M.P.E.C. 2017-Q21                                Issued 2017 Aug. 17, 17:44 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                        2017 QA
    
    Observations:
         K17Q00A  C2017 08 15.40754 21 01 04.755-11 58 37.13         19.9 iLEQ021F51
         K17Q00A  C2017 08 15.41926 21 01 01.237-11 57 16.46         20.6 iLEQ021F51
         K17Q00A  C2017 08 15.44272 21 00 54.215-11 54 35.12         20.5 iLEQ021F51
         K17Q00A* C2017 08 16.32350 20 56 58.044-10 14 17.06         21.0 wLEQ021F51
         K17Q00A  C2017 08 16.33565 20 56 54.540-10 12 55.15         20.8 wLEQ021F51
         K17Q00A  C2017 08 16.34774 20 56 51.045-10 11 33.45         20.4 wLEQ021F51
         K17Q00A  C2017 08 16.35978 20 56 47.556-10 10 11.96         20.6 wLEQ021F51
         K17Q00A |C2017 08 17.14509 20 53 20.05 -08 41 05.9          20.3 VuEQ021807
         K17Q00A |C2017 08 17.14850 20 53 19.09 -08 40 43.1          20.3 VuEQ021807
         K17Q00A |C2017 08 17.15190 20 53 18.14 -08 40 20.3          20.6 VuEQ021807
    
    Observer details:
    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, T. Goggia.  Measurers K. Chambers, S. Chastel, L. Denneau,
        H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters,
        R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    
    Orbital elements:
    2017 QA                                                  Earth MOID = 0.1430 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M   5.91035              (2000.0)            P               Q
    n   0.71595903     Peri.   11.10545     +0.86658139     +0.45057170
    a   1.2374964      Node   319.77969     -0.47953086     +0.63283124
    e   0.0667781      Incl.   19.40387     -0.13815514     +0.62969022
    P   1.38           H   23.8           G   0.15           U   7
    Residuals in seconds of arc
    170815 F51  0.0   0.1-    170816 F51  0.0   0.0     170817 807  0.1-  0.1-
    170815 F51  0.1-  0.0     170816 F51  0.0   0.1-    170817 807  0.0   0.0
    170815 F51  0.1-  0.0     170816 F51  0.1+  0.1-
    170816 F51  0.1-  0.2+    170817 807  0.1-  0.0
    
    Ephemeris:
    2017 QA                  a,e,i = 1.24, 0.07, 19                  q = 1.1549
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 07 18    23 19 01.2 -49 40 41   0.2152  1.1662   129.9    41.9    22.4
    ...
    2017 08 02    22 10 56.8 -35 42 36   0.1579  1.1593   154.4    22.2    21.2
    ...
    2017 08 10    21 27 44.8 -22 19 54   0.1442  1.1569   173.0     6.1    20.4
    ...
    2017 08 16    20 58 23.3 -10 50 34   0.1454  1.1557   169.0     9.6    20.6
    2017 08 17    20 53 57.7 -08 57 46   0.1466  1.1556   166.6    11.7    20.7
    2017 08 18    20 49 41.2 -07 06 59   0.1481  1.1554   164.2    13.8    20.8
    ...
    2017 08 24    20 27 29.8 +02 54 42   0.1620  1.1549   150.6    25.5    21.3
    ...
    2017 09 01    20 07 08.9 +12 51 37   0.1910  1.1551   136.4    37.1    22.0
    ...
    2017 09 16    19 51 48.9 +23 13 43   0.2610  1.1579   119.9    48.8    23.0
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-Q21
    

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