• MPC Preparation (Info)

  • MPEC 2017-M69 : 2014 QL390

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2017-M68 Read MPEC 2017-M70


    M.P.E.C. 2017-M69                                Issued 2017 June 26, 10:49 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
    
                                      2014 QL390
    
                               Revision to MPEC 2014-R18
    
    Additional Observations:
         K14Qd0L  C2017 06 24.51063 20 43 54.870-19 34 09.00         22.1 wLEM069F51
         K14Qd0L  C2017 06 24.53267 20 43 56.861-19 33 48.88         22.0 wLEM069F51
         K14Qd0L  C2017 06 24.54370 20 43 57.871-19 33 38.97         21.9 wLEM069F51
         K14Qd0L  C2017 06 26.38744 20 47 02.45 -19 04 37.0          22.5 VqEM069I52
         K14Qd0L  C2017 06 26.39076 20 47 02.77 -19 04 34.9                qEM069I52
         K14Qd0L  C2017 06 26.39410 20 47 03.21 -19 04 31.7                qEM069I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Goggia, 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.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer A. R. Gibbs.  Measurers
        E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
        F. C. Shelly.  1.0-m reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    170624 F51 1.14- 0.40-    170626 I52 1.17- 0.42-    MPO311490   +0.46 day
    
    Orbital elements:
    2014 QL390                                               Earth MOID = 0.2362 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M   6.73952              (2000.0)            P               Q
    n   0.32750102     Peri.   34.50344     +0.79614504     +0.60218102
    a   2.0844634      Node   288.36010     -0.56832685     +0.71042538
    e   0.4021952      Incl.    3.58964     -0.20774423     +0.36424414
    P   3.01           H   22.2           G   0.15           U   2
    Residuals in seconds of arc
    140828 F51  0.1-  0.1+    140830 H36  0.8+  0.8+    140922 H21  0.2+  0.1+
    140828 F51  0.1+  0.0     140830 H21  0.4-  0.1-    140922 H21  0.0   0.0
    140828 F51  0.0   0.0     140830 H21  0.3-  0.4+    170624 F51  0.1+  0.2+
    140828 F51  0.1-  0.0     140830 H21  0.1+  0.1+    170624 F51  0.1-  0.0
    140829 I52  0.5-  0.8-    140830 H36  0.5+  0.3-    170624 F51  0.0   0.3-
    140829 I52  0.0   0.9+    140830 H36  0.3+  0.9-    170626 I52  0.1-  0.7+
    140829 I52  0.9+  0.1-    140902 291  0.1-  0.2+    170626 I52  0.2+  0.3-
    140829 I52  0.4+  0.2-    140902 291  0.1-  0.0     170626 I52 (2.2+  0.3-)
    140829 033  0.1-  0.1-    140902 291  0.2-  0.1-
    140829 033  0.2+  0.3+    140922 H21  0.0   0.2-
    
    Ephemeris:
    2014 QL390               a,e,i = 2.08, 0.40, 4                   q = 1.2461
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 05 27    19 50 50.7 -24 57 40   0.5741  1.4535   130.6    32.0    23.2
    ...
    2017 06 11    20 19 52.1 -22 35 06   0.4574  1.3892   138.0    29.3    22.5
    ...
    2017 06 19    20 34 24.5 -20 54 25   0.4053  1.3584   142.0    27.5    22.1
    ...
    2017 06 25    20 44 43.7 -19 26 18   0.3708  1.3372   145.0    25.9    21.9
    2017 06 26    20 46 23.7 -19 10 32   0.3654  1.3338   145.5    25.6    21.8
    2017 06 27    20 48 02.7 -18 54 26   0.3602  1.3305   146.0    25.3    21.8
    ...
    2017 07 03    20 57 36.6 -17 11 07   0.3311  1.3118   149.1    23.5    21.5
    ...
    2017 07 11    21 09 25.4 -14 36 00   0.2985  1.2900   153.2    20.8    21.2
    ...
    2017 07 26    21 28 11.1 -09 05 03   0.2563  1.2604   160.7    15.4    20.6
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-M69
    

    Read MPEC 2017-M68 Read MPEC 2017-M70


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)