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  • MPEC 2018-T94 : 2013 HT150

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    M.P.E.C. 2018-T94                                Issued 2018 Oct.  9, 02:51 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
    
                                      2013 HT150
    
                               Revision to MPEC 2013-Q31
    
    Additional Observations:
         K13HF0T  C2018 10 04.36105123 54 56.019-07 34 17.35         21.2 GVET094F52
         K13HF0T  C2018 10 04.37272023 54 52.807-07 34 36.18               VET094F52
         K13HF0T  C2018 10 04.38440323 54 49.566-07 34 54.91         21.7 GVET094F52
         K13HF0T  C2018 10 04.39607123 54 46.361-07 35 13.64         21.1 GVET094F52
         K13HF0T  C2018 10 06.21806 23 46 23.67 -08 27 22.4          21.1 GVET094G96
         K13HF0T  C2018 10 06.22937 23 46 20.07 -08 27 42.5          21.6 GVET094G96
         K13HF0T  C2018 10 06.23503 23 46 18.22 -08 27 53.2          21.3 GVET094G96
         K13HF0T  C2018 10 06.26629223 46 08.00 -08 28 51.3          20.5 GVET094H01
         K13HF0T  C2018 10 06.27009023 46 06.77 -08 28 58.4          20.8 GVET094H01
         K13HF0T  C2018 10 06.27985223 46 03.63 -08 29 16.2          20.7 GVET094H01
         K13HF0T  C2018 10 06.28712323 46 01.30 -08 29 29.4          20.5 GVET094H01
         K13HF0T  C2018 10 06.30917 23 45 54.39 -08 30 08.3          20.9 GVET094I52
         K13HF0T  C2018 10 06.31416 23 45 52.77 -08 30 17.5          20.8 GVET094I52
         K13HF0T  C2018 10 06.31915 23 45 51.18 -08 30 26.3          20.8 GVET094I52
         K13HF0T  C2018 10 06.32415 23 45 49.56 -08 30 35.6          21.0 GVET094I52
         K13HF0T  C2018 10 07.23850 23 41 03.26 -08 59 31.1          21.0 GVET094I52
         K13HF0T  C2018 10 07.24017 23 41 02.70 -08 59 34.1          20.9 GVET094I52
         K13HF0T  C2018 10 07.24183 23 41 02.08 -08 59 37.8          21.1 GVET094I52
         K13HF0T  C2018 10 07.24349 23 41 01.53 -08 59 40.8          21.1 GVET094I52
         K13HF0T KC2018 10 07.42549 23 40 01.86 -09 04 22.5          20.3 GVET094474
         K13HF0T KC2018 10 07.42879 23 40 00.75 -09 04 29.9          20.7 GVET094474
         K13HF0T KC2018 10 07.43233 23 39 59.54 -09 04 36.8          21.2 GVET094474
         K13HF0T KC2018 10 08.10535323 36 08.18 -09 28 48.7          20.6 VuET094H21
         K13HF0T KC2018 10 08.11583123 36 04.24 -09 29 11.4          20.8 VuET094H21
         K13HF0T KC2018 10 08.12770423 35 59.76 -09 29 35.8          21.3 VuET094H21
         K13HF0T KC2018 10 08.87081 23 31 24.18 -09 56 16.3          20.5 RoET094K88
         K13HF0T pC2018 10 08.87247023 31 23.84 -09 56 18.2          20.8 GVET094L01
         K13HF0T pC2018 10 08.87591023 31 22.46 -09 56 25.5          21.0 GVET094L01
         K13HF0T KC2018 10 08.88034 23 31 20.29 -09 56 37.3          20.6 RoET094K88
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
        P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, T. Lowe,
        A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
        H. Flewelling, M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat,
        R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  Measurers B. M. Africano,
        E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. L. Seaman, F. C. Shelly.  1.5-m reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers H. Groeller,
        D. C. Fuls.  Measurers B. M. Africano, E. J. Christensen, G. A. Farneth,
        D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.
        1.0-m reflector + CCD.
    K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  1.02-m Ritchey-Chretien
        + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or integer in degrees), reference and Delta-T
    181004 F52   23+    8+    181008 K88   22+    7+    MPO437994   -9.0 day
    
    Orbital elements:
    2013 HT150                                               Earth MOID = 0.0014 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M  68.65926              (2000.0)            P               Q
    n   0.50173156     Peri.   75.84369     -0.22684506     -0.97367582
    a   1.5685141      Node    27.29862     +0.87377450     -0.21357144
    e   0.5394872      Incl.    2.78542     +0.43018537     -0.07964071
    P   1.96           H   24.4           G   0.15           U   3
    Residuals in seconds of arc
    130416 W84  0.0   0.0     130419 W84  0.1-  0.0     181006 I52  0.1-  0.1+
    130416 W84  0.1+  0.0     181004 F52  0.0   0.1+    181007 I52  0.1-  0.2-
    130416 W84  0.1+  0.0     181004 F52  0.0   0.0     181007 I52  0.3+  0.0
    130416 W84  0.2+  0.0     181004 F52  0.3-  0.1+    181007 I52  0.3-  0.4-
    130417 W84  0.1+  0.2-    181004 F52  0.0   0.1+    181007 I52  0.2+  0.1-
    130417 W84  0.1+  0.2-    181006 G96  0.1+  0.4-    181007 474  0.3-  0.6+
    130417 W84  0.2-  0.1+    181006 G96  0.4+  0.2+    181007 474  0.5+  0.2-
    130417 W84  0.0   0.0     181006 G96  0.1-  0.1-    181007 474  1.1+  0.0
    130418 W84  0.0   0.1+    181006 H01  0.2+  0.1+    181008 H21  0.3-  0.7-
    130418 W84  0.1+  0.1-    181006 H01  0.1+  0.1-    181008 H21  0.4-  1.3-
    130418 W84  0.1-  0.1+    181006 H01  0.0   0.1-    181008 H21  0.6-  0.7-
    130418 W84  0.0   0.1+    181006 H01  0.1+  0.0     181008 K88  0.5+  0.3+
    130419 W84  0.1-  0.0     181006 I52  0.0   0.1+    181008 L01  0.2+  0.3+
    130419 W84  0.2-  0.1-    181006 I52  0.2-  0.0     181008 L01  0.3+  0.6+
    130419 W84  0.1-  0.0     181006 I52  0.0   0.3+    181008 K88  0.3-  0.3+
    
    Ephemeris:
    2013 HT150               a,e,i = 1.57, 0.54, 3                   q = 0.7223
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 09 09    00 40 21.0 -01 52 04   0.3901  1.3746   156.8    16.8    23.9
    ...
    2018 09 24    00 24 36.0 -04 11 40   0.2465  1.2483   172.9     5.7    22.3
    ...
    2018 10 02    00 03 59.8 -06 35 33   0.1812  1.1788   167.9    10.2    21.7
    ...
    2018 10 08    23 36 44.2 -09 24 20   0.1376  1.1262   155.7    21.4    21.4
    2018 10 09    23 30 34.6 -10 00 04   0.1309  1.1174   153.2    23.8    21.3
    2018 10 10    23 23 47.2 -10 38 31   0.1243  1.1086   150.5    26.3    21.3
    ...
    2018 10 16    22 23 48.1 -15 37 06   0.08912 1.0560   129.5    46.8    21.0
    ...
    2018 10 24    19 32 03.0 -22 34 50   0.06423 0.9866    80.9    95.4    21.8
    ...
    2018 11 08    15 08 25.4 -11 45 01   0.1267  0.8651     6.3   172.8
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-T94
    

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