• MPC Preparation (Info)

  • MPEC 2017-J23 : 2017 HQ49

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    M.P.E.C. 2017-J23                                Issued 2017 May 2, 04:16 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 HQ49
    
    Observations:
         K17H49Q* C2017 04 27.58638 19 51 01.255-19 08 35.58         20.8 wLEJ023F51
         K17H49Q  C2017 04 27.59480 19 50 56.838-19 07 48.90         20.3 wLEJ023F51
         K17H49Q  C2017 04 27.61164 19 50 47.947-19 06 14.41         20.6 wLEJ023F51
         K17H49Q |C2017 04 28.39748 19 44 31.13 -17 51 36.2          20.3 VuEJ023807
         K17H49Q |C2017 04 28.40037 19 44 29.67 -17 51 20.3          20.6 VuEJ023807
         K17H49Q |C2017 04 28.40312 19 44 28.25 -17 51 05.0          20.5 VuEJ023807
         K17H49Q _C2017 04 28.60360419 42 56.342-17 33 59.83         19.8 GUEJ023568
         K17H49Q _C2017 04 28.60466019 42 55.806-17 33 54.01         19.6 GUEJ023568
         K17H49Q _C2017 04 28.60564819 42 55.308-17 33 48.65         20.4 GUEJ023568
         K17H49Q  C2017 04 30.44789 19 29 23.05 -14 50 49.3          21.0 RoEJ023926
         K17H49Q  C2017 04 30.45455 19 29 19.99 -14 50 15.1          20.2 RoEJ023926
         K17H49Q  C2017 04 30.46147 19 29 16.86 -14 49 41.0          20.0 RoEJ023926
         K17H49Q  C2017 05 01.46693 19 22 24.56 -13 25 27.5          20.6 RoEJ023926
         K17H49Q  C2017 05 01.46964 19 22 23.40 -13 25 13.9          20.2 RoEJ023926
         K17H49Q  C2017 05 01.47234 19 22 22.21 -13 25 00.8          20.5 RoEJ023926
    
    Observer details:
    568 Mauna Kea.  Observers R. J. Wainscoat, C. Wipper.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
        T. Lowe, A. Schultz, M. Willman.  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 HQ49                                                Earth MOID = 0.0090 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M 347.16846              (2000.0)            P               Q
    n   0.64227703     Peri.  299.25934     -0.93450643     -0.33931588
    a   1.3304170      Node   221.16846     +0.35594483     -0.89169417
    e   0.3280579      Incl.    9.40137     -0.00100495     -0.29957677
    P   1.53           H   23.1           G   0.15           U   7
    Residuals in seconds of arc
    170427 F51  0.4-  0.1+    170428 807  0.6-  0.1+    170430 926  0.9-  0.3+
    170427 F51  0.2-  0.3-    170428 568  0.1-  0.3-    170430 926  0.9-  0.8-
    170427 F51  0.4-  0.0     170428 568  0.2-  0.2-    170501 926  0.2-  0.2-
    170428 807  0.1-  0.0     170428 568  0.2-  0.2-    170501 926  0.0   0.1+
    170428 807  0.1-  0.0     170430 926  0.3-  0.0     170501 926  0.3-  0.0
    
    Ephemeris:
    2017 HQ49                a,e,i = 1.33, 0.33, 9                   q = 0.8940
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 04 02    01 11 07.9 -40 39 15   0.1035  0.9305    45.9   129.5    23.7
    ...
    2017 04 17    21 47 11.3 -36 05 52   0.07881 0.9820    71.8   103.8    21.4
    ...
    2017 04 25    20 13 36.9 -23 19 31   0.08423 1.0158    94.3    80.9    20.6
    ...
    2017 05 01    19 25 32.3 -14 03 07   0.09548 1.0433   109.5    65.6    20.4
    2017 05 02    19 18 53.5 -12 41 17   0.09783 1.0480   111.7    63.3    20.4
    2017 05 03    19 12 33.6 -11 23 00   0.1003  1.0527   113.9    61.1    20.4
    ...
    2017 05 09    18 40 01.4 -04 47 35   0.1172  1.0819   125.6    49.3    20.5
    ...
    2017 05 17    18 06 48.6 +01 04 39   0.1445  1.1221   137.5    37.5    20.7
    ...
    2017 06 01    17 23 16.5 +05 47 51   0.2092  1.1994   149.8    25.1    21.3
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-J23
    

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