• MPC Preparation (Info)

  • MPEC 2017-Y17 : 2017 XQ61

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    M.P.E.C. 2017-Y17                                Issued 2017 Dec. 17, 18:00 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 XQ61
    
    Observations:
         K17X61Q* C2017 12 14.47672 08 03 53.909+14 08 53.44         21.8 wUEY017F51
         K17X61Q  C2017 12 14.48793 08 03 57.376+14 09 00.80         21.0 wUEY017F51
         K17X61Q  C2017 12 14.50914 08 04 03.937+14 09 14.16         21.1 wUEY017F51
         K17X61Q  C2017 12 15.28321 08 08 27.94 +14 17 22.4          20.5 GUEY017I52
         K17X61Q  C2017 12 15.28528 08 08 28.63 +14 17 24.6          20.4 GUEY017I52
         K17X61Q  C2017 12 15.33620 08 08 45.69 +14 17 59.9          21.5 RoEY017926
         K17X61Q  C2017 12 15.34002 08 08 46.98 +14 18 04.0          21.7 RoEY017926
         K17X61Q  C2017 12 15.34384 08 08 48.23 +14 18 06.2          21.0 RoEY017926
         K17X61Q  C2017 12 15.42039 08 09 13.83 +14 18 57.4          21.4 GUEY017G96
         K17X61Q  C2017 12 15.42561 08 09 15.51 +14 19 00.7          21.1 GUEY017G96
         K17X61Q KC2017 12 15.42950 08 09 16.87 +14 19 04.3                oEY017291
         K17X61Q  C2017 12 15.43083 08 09 17.25 +14 19 04.4          20.8 GUEY017G96
         K17X61Q KC2017 12 15.43311 08 09 18.06 +14 19 06.9                oEY017291
         K17X61Q  C2017 12 15.43606 08 09 18.98 +14 19 07.6          21.4 GUEY017G96
         K17X61Q KC2017 12 15.43672 08 09 19.28 +14 19 09.2                oEY017291
         K17X61Q  C2017 12 16.27041 08 14 24.64 +14 28 42.6          20.4 GUEY017I52
         K17X61Q  C2017 12 16.27385 08 14 25.90 +14 28 45.4          20.4 GUEY017I52
         K17X61Q  C2017 12 16.27730 08 14 27.12 +14 28 48.0          20.3 GUEY017I52
         K17X61Q  C2017 12 16.27895 08 14 27.72 +14 28 49.0          20.4 GUEY017I52
         K17X61Q KC2017 12 16.42376 08 15 19.91 +14 30 37.6                oEY017691
         K17X61Q KC2017 12 16.43086 08 15 22.46 +14 30 42.5                oEY017691
         K17X61Q KC2017 12 16.43795 08 15 24.99 +14 30 47.7                oEY017691
         K17X61Q |C2017 12 17.23188 08 20 36.71 +14 41 27.9          21.5 VuEY017807
         K17X61Q |C2017 12 17.23598 08 20 38.31 +14 41 31.2          21.4 VuEY017807
         K17X61Q |C2017 12 17.23921 08 20 39.53 +14 41 33.6          21.6 VuEY017807
    
    Observer details:
    291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
    691 Steward Observatory, Kitt Peak.  Observer M. T. Read.  0.9-m f/3 reflector
        + 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 J. Bulger, 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.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  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.
        1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers E. J. Christensen,
        R. A. Kowalski.  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.
    
    Orbital elements:
    2017 XQ61                                                Earth MOID = 0.0326 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 283.15647              (2000.0)            P               Q
    n   0.47096064     Peri.   67.06156     -0.94965469     -0.28703572
    a   1.6361118      Node    96.07222     +0.22065507     -0.89728982
    e   0.4697157      Incl.    7.25428     +0.22241247     -0.33538258
    P   2.09           H   23.3           G   0.15           U   8
    Residuals in seconds of arc
    171214 F51  0.5+  0.0     171215 G96  0.1-  0.4-    171216 I52  0.2-  0.3-
    171214 F51  0.1+  0.1+    171215 291  0.2+  0.2+    171216 691  0.1+  0.2+
    171214 F51  0.6-  0.2-    171215 G96  0.2-  0.2-    171216 691  0.1+  0.0
    171215 I52  0.1+  0.3-    171215 291  0.0   0.4+    171216 691  0.3-  0.2+
    171215 I52  0.0   0.5+    171215 G96  0.5-  0.5-    171217 807  0.1-  0.1-
    171215 926  0.2-  0.9-    171215 291  0.1+  0.3+    171217 807  0.2+  0.0
    171215 926  0.0   0.5+    171216 I52  0.1+  0.2-    171217 807  0.1-  0.2-
    171215 926  0.4-  0.1+    171216 I52  0.3+  0.0
    171215 G96  0.8+  0.2-    171216 I52  0.2-  0.1-
    
    Ephemeris:
    2017 XQ61                a,e,i = 1.64, 0.47, 7                   q = 0.8676
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 11 17    06 40 56.5 +12 43 47   0.4420  1.3323   133.5    32.6    23.5
    ...
    2017 12 02    07 15 19.3 +12 51 35   0.2926  1.2251   140.2    31.0    22.4
    ...
    2017 12 10    07 42 33.5 +13 29 55   0.2226  1.1685   142.1    31.2    21.7
    ...
    2017 12 16    08 12 41.8 +14 25 50   0.1754  1.1268   141.5    32.9    21.2
    2017 12 17    08 19 02.5 +14 37 56   0.1680  1.1199   141.1    33.5    21.1
    2017 12 18    08 25 53.2 +14 50 50   0.1609  1.1131   140.6    34.1    21.0
    ...
    2017 12 24    09 21 06.1 +16 20 01   0.1223  1.0730   134.5    40.8    20.5
    ...
    2018 01 01    11 31 19.1 +16 50 03   0.09103 1.0223   113.0    62.3    20.4
    ...
    2018 01 16    15 37 55.3 +05 04 12   0.1303  0.9406    67.1   105.6    22.7
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-Y17
    

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