• MPC Preparation (Info)

  • MPEC 2018-A09 : 2017 YD8

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    M.P.E.C. 2018-A09                                Issued 2018 Jan. 2, 20:10 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 YD8
    
    Observations:
         K17Y08D* C2017 12 29.17463 07 00 16.82 +25 20 39.0          15.7 GUEA009703
         K17Y08D  C2017 12 29.18136 07 00 15.05 +25 23 24.9          15.9 GUEA009703
         K17Y08D  C2017 12 29.18809 07 00 13.26 +25 26 10.2                UEA009703
         K17Y08D  C2017 12 29.19482 07 00 11.51 +25 28 55.1          16.0 GUEA009703
         K17Y08D  C2017 12 29.25400 06 59 55.45 +25 52 57.4          16.0 GUEA009I52
         K17Y08D  C2017 12 29.25413 06 59 55.42 +25 53 00.4          16.0 GUEA009I52
         K17Y08D  C2017 12 29.25426 06 59 55.39 +25 53 03.6          16.0 GUEA009I52
         K17Y08D  C2017 12 29.25438 06 59 55.35 +25 53 06.5          16.1 GUEA009I52
         K17Y08D KC2017 12 29.25923 06 59 51.67 +25 54 53.5          16.5 RqEA009H36
         K17Y08D KC2017 12 29.26528 06 59 50.01 +25 57 18.9          16.3 RqEA009H36
         K17Y08D KC2017 12 29.26679 06 59 49.58 +25 57 55.2          16.3 RqEA009H36
         K17Y08D KC2017 12 29.26982 06 59 48.72 +25 59 08.0          16.1 RqEA009H36
         K17Y08D #C2017 12 29.39729 06 59 14.49 +26 49 45.7          16.9 VqEA009H06
         K17Y08D #C2017 12 29.39900 06 59 14.08 +26 50 24.3          17.2 VqEA009H06
         K17Y08D KC2017 12 29.72419 06 58 12.30 +28 53 24.7          16.6 RqEA009K61
         K17Y08D KC2017 12 29.72469 06 58 11.92 +28 53 34.7          16.8 RqEA009K61
         K17Y08D KC2017 12 29.72512 06 58 12.02 +28 53 45.8          16.8 RqEA009K61
         K17Y08D KC2017 12 29.72563 06 58 11.88 +28 53 55.6          16.8 RqEA009K61
         K17Y08D KC2017 12 29.74761606 58 06.83 +29 02 10.8          15.6 VUEA009G34
         K17Y08D KC2017 12 29.74872706 58 06.45 +29 02 36.3          15.7 VUEA009G34
         K17Y08D KC2017 12 29.74983806 58 06.34 +29 03 00.5          15.5 VUEA009G34
         K17Y08D KC2017 12 29.77040506 58 01.55 +29 10 43.6          16.3 VUEA009G34
         K17Y08D KC2017 12 29.77162606 58 01.24 +29 11 09.9          16.0 VUEA009G34
         K17Y08D KC2017 12 29.84037 06 57 45.56 +29 36 51.5          16.9  UEA009K63
         K17Y08D KC2017 12 29.84435 06 57 44.59 +29 38 19.5          17.0  UEA009K63
         K17Y08D KC2017 12 29.84895 06 57 43.41 +29 40 01.6          17.7  UEA009K63
         K17Y08D KC2017 12 29.91046 06 57 27.10 +30 02 28.4          16.7 VqEA009595
         K17Y08D KC2017 12 29.91216 06 57 26.66 +30 03 05.7          16.7 VqEA009595
         K17Y08D KC2017 12 29.91558 06 57 25.77 +30 04 20.3          16.8 VqEA009595
         K17Y08D KC2017 12 30.10464 06 56 47.59 +31 11 35.6          16.5 VUEA009W34
         K17Y08D KC2017 12 30.11054 06 56 46.07 +31 13 41.1          16.5 VUEA009W34
         K17Y08D KC2017 12 30.12028 06 56 43.59 +31 17 07.3          16.6 VUEA009W34
         K17Y08D KC2017 12 30.12670 06 56 41.93 +31 19 23.1          16.8 VUEA009W34
         K17Y08D  C2017 12 30.16047 06 56 36.25 +31 30 59.7          16.4 GUEA009703
         K17Y08D  C2017 12 30.16583 06 56 34.92 +31 32 52.9          16.4 GUEA009703
         K17Y08D  C2017 12 30.17119 06 56 33.57 +31 34 45.3          16.5 GUEA009703
         K17Y08D  C2017 12 30.17655 06 56 32.20 +31 36 37.9          16.5 GUEA009703
         K17Y08D KC2017 12 30.18315 06 56 30.40 +31 39 00.0          17.5 VqEA009G48
         K17Y08D KC2017 12 30.18589 06 56 29.70 +31 39 56.5          17.4 VqEA009G48
         K17Y08D KC2017 12 30.18870 06 56 28.99 +31 40 53.9          17.4 VqEA009G48
         K17Y08D  C2017 12 30.21775 06 56 21.66 +31 51 01.6          16.7 RoEA009926
         K17Y08D  C2017 12 30.21918 06 56 21.28 +31 51 31.2          16.7 RoEA009926
         K17Y08D  C2017 12 30.22059 06 56 20.91 +31 52 00.7          16.6 RoEA009926
         K17Y08D  C2017 12 30.24291 06 56 14.93 +31 59 40.8          16.9 GUEA009I52
         K17Y08D  C2017 12 30.24303 06 56 14.91 +31 59 43.2          16.7 GUEA009I52
         K17Y08D  C2017 12 30.24316 06 56 14.87 +31 59 45.7          16.7 GUEA009I52
         K17Y08D  C2017 12 30.24328 06 56 14.85 +31 59 48.4          16.7 GUEA009I52
         K17Y08D QC2017 12 30.24752 06 56 12.92 +32 01 18.5          16.7 VUEA009H06
         K17Y08D QC2017 12 30.25109 06 56 11.98 +32 02 31.8          16.9 VUEA009H06
         K17Y08D QC2017 12 30.25785 06 56 10.18 +32 04 50.6          16.8 VUEA009H06
         K17Y08D QC2017 12 30.27325 06 56 06.04 +32 10 06.1          16.8 VUEA009H06
         K17Y08D  C2017 12 30.42634 06 55 31.97 +33 01 56.1          16.6 oUEA009T08
         K17Y08D  C2017 12 30.42894 06 55 31.24 +33 02 48.0          16.5 oUEA009T08
         K17Y08D  C2017 12 30.44761 06 55 26.05 +33 08 58.2          16.7 oUEA009T08
         K17Y08D  C2017 12 30.45741 06 55 23.33 +33 12 11.9          16.7 oUEA009T08
         K17Y08D KC2017 12 30.78909 06 54 19.84 +34 56 53.9          16.8 RtEA009B49
         K17Y08D KC2017 12 30.79854 06 54 17.68 +34 59 53.1          16.7 RtEA009B49
         K17Y08D KC2017 12 30.86244 06 54 01.97 +35 19 55.1          16.8 VqEA009C77
         K17Y08D KC2017 12 30.86536 06 54 01.24 +35 20 49.7          16.8 VqEA009C77
         K17Y08D KC2017 12 30.86841 06 54 00.48 +35 21 46.2          17.0 VqEA009C77
         K17Y08D KC2017 12 30.96661 06 53 33.61 +35 51 48.8          16.9 VtEA009L04
         K17Y08D KC2017 12 30.96919 06 53 32.94 +35 52 35.3          16.8 VtEA009L04
         K17Y08D KC2017 12 30.97306 06 53 31.96 +35 53 45.0          17.0 VtEA009L04
         K17Y08D KC2017 12 30.97809 06 53 30.67 +35 55 15.7          16.9 VtEA009L04
         K17Y08D KC2017 12 30.98131 06 53 29.86 +35 56 13.8          16.9 VtEA009L04
         K17Y08D 'C2017 12 31.08056 06 53 07.23 +36 26 06.3          16.9 VUEA009I89
         K17Y08D 'C2017 12 31.08695 06 53 05.58 +36 27 58.4          17.3 VUEA009I89
         K17Y08D 'C2017 12 31.09368 06 53 03.91 +36 29 56.6          17.1 VUEA009I89
         K17Y08D  C2017 12 31.17687 06 52 56.56 +36 54 17.9          16.9 RoEA009926
         K17Y08D  C2017 12 31.17859 06 52 56.13 +36 54 48.0          16.9 RoEA009926
         K17Y08D  C2017 12 31.18033 06 52 55.71 +36 55 19.2          17.0 RoEA009926
         K17Y08D QC2017 12 31.25298 06 52 36.49 +37 16 34.1          16.9 VUEA009H06
         K17Y08D QC2017 12 31.27251 06 52 31.38 +37 22 12.0          16.8 VUEA009H06
         K17Y08D QC2017 12 31.28070 06 52 29.22 +37 24 33.2          16.9 VUEA009H06
         K17Y08D  C2017 12 31.37165 06 52 06.64 +37 50 02.8          17.0  rEA009718
         K17Y08D  C2017 12 31.37343 06 52 06.15 +37 50 32.9          16.9  rEA009718
         K17Y08D  C2017 12 31.37521 06 52 05.73 +37 51 02.0          17.0  rEA009718
         K17Y08D  C2017 12 31.37699 06 52 05.28 +37 51 32.2          17.1  rEA009718
         K17Y08D  C2017 12 31.37877 06 52 04.84 +37 52 01.6          17.1  rEA009718
         K17Y08D KC2017 12 31.83175 06 50 38.60 +39 53 53.2          17.2 VUEA009K74
         K17Y08D KC2017 12 31.83330 06 50 38.24 +39 54 17.6          17.0 VUEA009K74
         K17Y08D KC2017 12 31.83546 06 50 37.74 +39 54 52.1          17.3 VUEA009K74
         K17Y08D KC2017 12 31.85089 06 50 34.20 +39 58 55.7          17.3 VUEA009K74
         K17Y08D KC2017 12 31.85339 06 50 33.59 +39 59 34.7          17.1 VUEA009K74
         K17Y08D KC2018 01 01.71146 06 47 42.40 +43 25 19.0          17.2 RqEA009K61
         K17Y08D KC2018 01 01.71198 06 47 42.31 +43 25 26.1          17.4 RqEA009K61
         K17Y08D KC2018 01 01.71242 06 47 42.24 +43 25 32.0          17.4 RqEA009K61
         K17Y08D KC2018 01 01.71293 06 47 42.12 +43 25 39.0          17.4 RqEA009K61
         K17Y08D KC2018 01 01.86151 06 47 11.28 +43 58 49.3                UEA009J95
         K17Y08D KC2018 01 01.86974 06 47 09.46 +44 00 38.2                UEA009J95
         K17Y08D KC2018 01 01.87833 06 47 07.56 +44 02 31.8                UEA009J95
         K17Y08D KC2018 01 01.88665 06 47 05.69 +44 04 21.5          17.7 GUEA009J95
         K17Y08D KC2018 01 01.91474206 46 59.36 +44 10 32.7          16.9 GUEA009J69
         K17Y08D KC2018 01 01.91911806 46 58.33 +44 11 29.3          16.9 GUEA009J69
         K17Y08D KC2018 01 01.92349406 46 57.30 +44 12 26.5          17.0 GUEA009J69
         K17Y08D KC2018 01 02.02203506 46 34.30 +44 33 31.1                UEA009Z80
         K17Y08D KC2018 01 02.02806706 46 32.93 +44 34 46.6          17.7 GUEA009Z80
         K17Y08D KC2018 01 02.03435606 46 31.42 +44 36 06.7          17.1 GUEA009Z80
         K17Y08D KC2018 01 02.04065606 46 30.02 +44 37 26.4          17.2 GUEA009Z80
    
    Observer details:
    595 Farra d'Isonzo.  Observer E. Pettarin.  0.61-m f/4.0 reflector + CCD.
    703 Catalina Sky Survey.  Observer R. G. Matheny.  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.
        0.68-m Schmidt + 10K CCD.
    718 Tooele.  Observer P. Wiggins.  0.35-m f/5.5 Schmidt-Cassegrain + CCD.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
    B49 Paus Observatory, Sabadell.  Observer J. Camarasa.  0.30-m f/4 Newtonian
        reflector + CCD.
    C77 Bernezzo Observatory.  Observer A. Mantero.  0.25-m f/4.0 reflector + CCD.
    G34 Oberfrauendorf.  Observer T. Felber.  0.25-m f/10 Schmidt-Cassegrain + CCD
        + f/6.3 focal reducer.
    G48 Harlingten Research Observatory, Rancho Hildalgo.  Observers C. Harlingten,
        M. Mills.  Measurer M. Mills.  0.40-m f/6.7 Ritchey-Chretien + CCD.
    H06 iTelescope Observatory, Mayhill.  Observers M. Suzuki, S. M. Tilley.
        0.50-m f/6.8 reflector + CCD + f/4.5 focal reducer.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. G. Matheny.
        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.
    I89 iTelescope Observatory, Nerpio.  Observer S. M. Tilley.  0.43-m f/6.8
        reflector + CCD.
    J69 North Observatory, Clanfield.  Observer D. Briggs.  0.41-m f/4.5 Newtonian
        reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    K61 Rokycany Observatory.  Observer M. Adamovsky.  0.51-m f/6.8 reflector
        + CCD.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.40-m
        f/3.2 Newtonian reflector + CCD.
    K74 Muensterschwarzach Observatory, Schwarzach.  Observer C. Gerhard.  0.30-m
        f/4.6 Newtonian reflector + CCD.
    L04 ROASTERR-1 Observatory, Cluj-Napoca.  Observer L. Hudin.  0.3-m f/5
        reflector + CCD.
    T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, A. Heinze, H. Weiland,
        J. Tonry.  Measurers L. Denneau, H. Flewelling, A. Heinze, B. Stalder,
        J. Tonry.  0.5-m f/2.0 Schmidt + CCD.
    W34 Squirrel Valley Observatory, Columbus.  Observer R. L. Flynn.  0.20-m f/10
        Schmidt-Cassegrain + CCD + f/7.0 focal reducer.
    Z80 Northolt Branch Observatory.  Observers J. Leuty, G. Wells.  Measurer
        D. Bamberger.  0.25-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2017 YD8                                                 Earth MOID = 0.0517 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 320.21314              (2000.0)            P               Q
    n   0.65512332     Peri.  293.70944     +0.77438667     -0.48117802
    a   1.3129676      Node    97.42250     +0.61549076     +0.72336028
    e   0.3206735      Incl.   24.47625     -0.14661658     +0.49519452
    P   1.50           H   21.9           G   0.15           U   7
    Residuals in seconds of arc
    171229 703  0.1-  0.5-    171230 703  0.0   0.2-    171231 I89  0.1-  0.0
    171229 703  0.3-  0.2-    171230 703  0.1+  0.1+    171231 I89  0.6+  0.1-
    171229 703  0.6-  0.3-    171230 703  0.0   0.3-    171231 926  0.1+  0.3+
    171229 703  0.2-  0.6-    171230 703  0.2-  0.4-    171231 926  0.0   0.2-
    171229 I52  0.0   0.3-    171230 G48  0.0   0.8+    171231 926  0.1+  0.2+
    171229 I52  0.0   0.5-    171230 G48  0.1+  0.1-    171231 H06  0.2+  0.3-
    171229 I52  0.1+  0.4-    171230 G48 (0.2+  1.6-)   171231 H06  0.2+  0.2-
    171229 I52  0.0   0.4-    171230 926  0.1-  0.1+    171231 H06  0.1+  0.1-
    171229 H36  0.2-  0.5+    171230 926  0.2-  0.0     171231 718  0.4+  0.2+
    171229 H36  0.1+  0.2+    171230 926  0.1-  0.2+    171231 718  0.0   0.5+
    171229 H36  0.0   0.2+    171230 I52  0.2-  0.2-    171231 718  0.3+  0.2-
    171229 H36  0.2-  0.2+    171230 I52  0.0   0.3-    171231 718  0.4+  0.1+
    171229 H06  1.3-  1.2+    171230 I52  0.1-  0.5-    171231 718  0.5+  0.3-
    171229 H06  0.5-  0.1-    171230 I52  0.1+  0.3-    171231 K74  0.1-  0.2-
    171229 K61  1.1+  0.6+    171230 H06  0.7-  1.1+    171231 K74  0.2-  0.3-
    171229 K61 (2.4-  0.7-)   171230 H06  0.4-  0.8+    171231 K74  0.2-  0.0
    171229 K61  0.1+  0.7+    171230 H06  0.1-  0.6+    171231 K74  0.3+  0.2+
    171229 K61  0.2-  1.0-    171230 H06  0.4+  0.3+    171231 K74  0.0   0.2-
    171229 G34  0.5+  0.0     171230 T08  0.3+  0.5-    180101 K61  0.0   0.5-
    171229 G34  1.2-  0.5+    171230 T08  0.2+  0.4-    180101 K61  0.2+  0.5-
    171229 G34  0.7+  0.3-    171230 T08  0.1+  0.6-    180101 K61  0.3+  0.7-
    171229 G34  0.2+  1.0+    171230 T08  0.1+  0.5-    180101 K61  0.1+  0.6-
    171229 G34  0.1-  0.1-    171230 B49  0.2+  0.2+    180101 J95  0.1-  0.1+
    171229 K63  0.2-  0.2+    171230 B49  0.2-  0.1+    180101 J95  0.1-  0.1-
    171229 K63  0.2+  0.1+    171230 C77  0.4+  0.1+    180101 J95  0.0   0.1-
    171229 K63  0.1-  0.4+    171230 C77  0.2+  0.2+    180101 J95  0.1-  0.1-
    171229 595  0.3+  0.4-    171230 C77  0.1+  0.2-    180101 J69  0.2+  1.2+
    171229 595  0.4+  0.1-    171230 L04  0.1+  0.2+    180101 J69  0.1-  0.6+
    171229 595  0.5+  0.1+    171230 L04  0.0   0.1+    180101 J69  0.4-  0.7+
    171230 W34  0.0   0.3-    171230 L04  0.1+  0.0     180102 Z80  0.6-  0.3+
    171230 W34  0.2-  0.0     171230 L04  0.1+  0.0     180102 Z80  0.2-  0.5-
    171230 W34  0.1+  0.1-    171230 L04  0.2+  0.2+    180102 Z80  0.8-  0.3+
    171230 W34  0.1+  0.0     171231 I89  0.0   0.3+    180102 Z80  0.1-  0.7+
    
    Ephemeris:
    2017 YD8                 a,e,i = 1.31, 0.32, 24                  q = 0.8919
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 12 03    09 38 06.7 -79 28 13   0.1957  0.9403    71.0    97.7    21.7
    ...
    2017 12 18    07 50 53.1 -56 32 40   0.08294 0.9956    95.6    79.6    19.3
    ...
    2017 12 26    07 12 54.5 -00 53 30   0.05279 1.0305   152.3    26.3    16.8
    ...
    2018 01 01    06 49 59.2 +40 37 22   0.07859 1.0585   162.4    16.3    17.4
    2018 01 02    06 46 39.6 +44 28 53   0.08546 1.0632   158.5    19.8    17.7
    2018 01 03    06 43 28.6 +47 44 00   0.09269 1.0680   155.1    22.8    18.0
    ...
    2018 01 09    06 27 33.3 +59 19 01   0.1408  1.0973   141.7    33.7    19.3
    ...
    2018 01 17    06 15 16.1 +65 12 57   0.2107  1.1374   132.7    39.4    20.4
    ...
    2018 02 01    06 17 42.4 +67 40 27   0.3488  1.2134   123.6    42.6    21.7
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-A09
    

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