• MPC Preparation (Info)

  • MPEC 2012-N11 : 1999 XL136

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    M.P.E.C. 2012-N11                                Issued 2012 July  9, 01:15 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 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
    
                                      1999 XL136
    
                               Revision to MPEC 1999-X36
    
    Additional Observations:
         J99XD6L QC2012 07 08.58042 17 59 23.62 -08 22 28.1          16.2 VrEN011E12
         J99XD6L QC2012 07 08.59395 17 59 24.33 -08 22 34.5          16.1 VrEN011E12
         J99XD6L QC2012 07 08.60772 17 59 25.07 -08 22 41.2          15.9 VrEN011E12
         J99XD6L QC2012 07 08.62125 17 59 25.78 -08 22 47.9          16.1 VrEN011E12
         J99XD6L QC2012 07 08.68315 17 59 29.24 -08 23 16.4          16.9 VrEN011E12
         J99XD6L QC2012 07 08.68484 17 59 29.33 -08 23 17.2          17.3 VrEN011E12
         J99XD6L QC2012 07 08.70385 17 59 30.47 -08 23 26.2          16.8 VrEN011E12
         J99XD6L QC2012 07 08.73323 17 59 32.28 -08 23 39.9          16.7 VrEN011E12
         J99XD6L KC2012 07 08.87435 17 59 45.43 -08 25 51.9          17.5 RuEN011104
         J99XD6L KC2012 07 08.87793 17 59 45.61 -08 25 53.6          17.5 RuEN011104
         J99XD6L KC2012 07 08.88051 17 59 45.61 -08 25 55.8          18.1 VuEN011595
         J99XD6L KC2012 07 08.88150 17 59 45.82 -08 25 55.4                uEN011104
         J99XD6L KC2012 07 08.88363 17 59 45.79 -08 25 57.5          18.2 VuEN011595
         J99XD6L KC2012 07 08.89640 17 59 47.03 -08 26 02.6          17.8 VvEN011I93
         J99XD6L KC2012 07 08.89923 17 59 47.39 -08 26 00.4          16.5 RoEN011I89
         J99XD6L KC2012 07 08.90445 17 59 46.81 -08 26 10.5          17.7 VuEN011C43
         J99XD6L KC2012 07 08.90670 17 59 47.78 -08 26 04.0          16.3 RoEN011I89
         J99XD6L KC2012 07 08.90990 17 59 47.14 -08 26 12.4          17.1 VuEN011C43
         J99XD6L KC2012 07 08.91081 17 59 47.15 -08 26 12.9          17.3 VuEN011C43
         J99XD6L KC2012 07 08.91158 17 59 47.84 -08 26 10.0          17.6 VvEN011I93
         J99XD6L KC2012 07 08.91193 17 59 47.26 -08 26 13.5          17.3 VuEN011C43
         J99XD6L KC2012 07 08.91320 17 59 47.32 -08 26 14.2          17.4 VuEN011C43
         J99XD6L KC2012 07 08.91434 17 59 47.40 -08 26 14.7          17.4 VuEN011C43
         J99XD6L KC2012 07 08.91533 17 59 47.44 -08 26 15.3          17.7 VuEN011C43
         J99XD6L KC2012 07 08.91624 17 59 47.52 -08 26 15.9          17.6 VuEN011C43
         J99XD6L KC2012 07 08.91714 17 59 47.55 -08 26 16.1          17.4 VuEN011C43
         J99XD6L KC2012 07 08.91805 17 59 47.59 -08 26 16.3          17.5 VuEN011C43
         J99XD6L KC2012 07 08.91850 17 59 47.64 -08 26 16.7          17.4 VuEN011C43
         J99XD6L KC2012 07 08.91968 17 59 47.68 -08 26 17.3          17.2 VuEN011C43
         J99XD6L KC2012 07 08.92280 17 59 47.80 -08 26 18.0          17.0 VuEN011C43
         J99XD6L KC2012 07 08.92438 17 59 47.88 -08 26 21.2          17.3 VuEN011C43
         J99XD6L KC2012 07 08.92798 17 59 48.72 -08 26 18.0          17.6 VvEN011I93
         J99XD6L  C2012 07 08.94120 17 59 49.59 -08 26 22.2          17.1 VuEN011I76
         J99XD6L  C2012 07 08.94244 17 59 49.66 -08 26 22.7          17.0 VuEN011I76
         J99XD6L  C2012 07 08.94367 17 59 49.74 -08 26 23.7          17.2 VuEN011I76
         J99XD6L  C2012 07 08.94490 17 59 49.78 -08 26 24.0          17.2 VuEN011I76
         J99XD6L  C2012 07 08.94612 17 59 49.85 -08 26 24.5          17.2 VuEN011I76
         J99XD6L  C2012 07 08.94736 17 59 49.89 -08 26 25.2          16.9 VuEN011I76
         J99XD6L KC2012 07 08.95429 17 59 49.73 -08 26 31.3          16.7 RvEN011204
         J99XD6L KC2012 07 08.95846 17 59 49.95 -08 26 33.4                vEN011204
         J99XD6L KC2012 07 08.96263 17 59 50.16 -08 26 35.4                vEN011204
         J99XD6L KC2012 07 08.97914 17 59 51.42 -08 26 42.3          16.9 RuEN011958
         J99XD6L KC2012 07 08.98577 17 59 51.78 -08 26 45.2          16.6 RuEN011958
         J99XD6L KC2012 07 08.99216 17 59 52.08 -08 26 49.1          16.7 RuEN011958
         J99XD6L KC2012 07 08.99906 17 59 52.47 -08 26 51.5          16.8 RuEN011958
         J99XD6L KC2012 07 09.00562 17 59 52.81 -08 26 54.7          16.8 RuEN011958
    
    Observer details:
    104 San Marcello Pistoiese.  Observer P. Bacci.  Measurers P. Bacci, L. Tesi,
        G. Fagioli.  0.60-m f/4 reflector + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.38-m f/6.8 reflector
        + CCD.
    595 Farra d'Isonzo.  Observers E. Pettarin, A. Vodice.  Measurer E. Pettarin.
        0.40-m f/4.5 reflector + CCD.
    958 Observatoire de Dax.  Observers P. Dupouy, J. B. de Vanssay.  Measurer
        P. Dupouy.  0.43-m f/3.5 reflector + CCD.
    C43 Hoyerswerda.  Observer P. Lindner.  0.30-m f/6.3 Schmidt-Cassegrain + CCD.
    E12 Siding Spring Survey.  Observer R. H. McNaught.  Measurers J. D. Ahern,
        E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  0.5-m Uppsala Schmidt + CCD.
    I76 Observatorio Tesla, Valdemorillo.  Observer J. Fernandez.  0.24-m f/10
        Schmidt-Cassegrain + CCD + f/6.3 focal reducer.
    I89 RAS Observatory, Nerpio.  Observers E. Guido, G. Sostero, N. Howes.
        0.43-m f/6.8 reflector + CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/5.0 reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or integer in degrees), reference and Delta-T
    120708 E12   23-    2-    120709 958   23-    2-    MPO 53633   +5.4 day
    
    Orbital elements:
    1999 XL136                                          PHA, Earth MOID = 0.0039 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M  59.37947              (2000.0)            P               Q
    n   0.40214943     Peri.  274.98706     -0.98348376     +0.09374054
    a   1.8177929      Node   270.45211     -0.02552341     -0.91871265
    e   0.6474758      Incl.    8.90723     -0.17918776     -0.38364016
    P   2.45           H   19.6           G   0.15           U   1
    Residuals in seconds of arc
    991212 704  0.0   0.1+    991217 046  0.4+  0.8+    000109 704  0.0   0.4-
    991212 704  0.3-  0.4-    991217 046  0.6-  0.7+    000109 704  0.1+  0.1-
    991212 704  0.1-  0.2-    991217 046  0.4-  0.4+    000109 704  0.1-  0.5-
    991212 704  0.3-  0.3-    991225 402  0.5+  0.4-    000109 704  0.2+  0.5-
    991212 704  0.4-  0.3-    991225 402  0.8+  0.2-    120708 E12  0.2-  0.3-
    991213 719  0.1-  0.3-    991225 402  0.4+  0.0     120708 E12  0.1-  0.1-
    991213 704  0.2-  0.0     991227 900  1.4-  0.1-    120708 E12  0.1+  0.2-
    991213 719  0.0   0.6-    991227 900  0.6-  0.1+    120708 E12  0.1-  0.4-
    991213 704  0.2-  0.0     991228 739  1.1-  0.3-    120708 E12  0.2+  0.0
    991213 704  0.3-  0.1-    991228 739 (2.1-  0.6-)   120708 E12  0.0   0.0
    991213 719  0.9+  0.2-    991228 739  1.0+  0.4+    120708 E12  0.3+  0.2-
    991213 678  1.0-  0.4-    991229 360  0.0   0.0     120708 E12  0.4+  0.6-
    991213 719  0.0   0.7-    991229 360  0.2+  0.1-    120708 104  0.0   0.2+
    991213 704  0.1+  0.4-    991229 360  0.5+  0.2+    120708 104  0.2-  0.2+
    991213 678  1.1+  0.5+    991229 046  0.5+  0.0     120708 595  0.3-  0.3+
    991213 678  0.3+  0.4+    991229 046  0.1-  0.2+    120708 104  0.1+  0.2+
    991213 678  0.4+  1.0-    991229 046  0.0   0.4-    120708 595  0.1-  0.1+
    991213 678  1.0+  0.4+    991229 046  0.5+  0.6+    120708 I93  0.3-  0.3+
    991213 704  0.2-  0.0     991229 046  0.0   0.1+    120708 I89  0.2+  0.1+
    991213 670  0.6-  1.2-    991230 413  0.1-  0.1+    120708 C43  0.7-  0.1-
    991213 670 (2.1+  0.2+)   991230 413  0.0   0.2+    120708 I89  0.3+  0.2+
    991213 557  0.1+  0.1-    991230 587  0.2-  0.3+    120708 C43  0.2-  0.6+
    991213 557  0.9-  0.1-    991230 587  0.1-  0.3+    120708 C43  0.7-  0.6+
    991213 557  0.2-  0.3-    000102 046  1.2+  0.8+    120708 I93  0.2-  0.3+
    991214 704  0.2-  0.3+    000102 046  0.2+  0.2-    120708 C43  0.0   0.5+
    991214 704  0.3-  0.3+    000102 046  0.2+  0.4+    120708 C43  0.2-  0.4+
    991214 704  0.7-  0.2-    000102 046  0.4-  0.4+    120708 C43  0.1+  0.5+
    991214 704  1.0+  0.3-    000103 670  1.1-  1.0+    120708 C43  0.1-  0.3+
    991214 704  0.0   0.6-    000103 670  0.8+  0.7+    120708 C43  0.4+  0.2+
    991215 557  0.8+  0.5+    000103 587  0.2+  0.5+    120708 C43  0.1+  0.4+
    991215 557  0.2+  0.2+    000103 587  0.1+  0.1+    120708 C43  0.1-  0.6+
    991215 557  1.2+  0.5+    000103 587  0.5+  0.3+    120708 C43  0.3+  0.5+
    991215 704  0.0   0.8+    000103 118  0.3-  0.3+    120708 C43  0.0   0.4+
    991215 704  0.2-  0.1-    000103 118  0.1+  0.1+    120708 C43  0.8-  1.2+
    991215 704  0.2-  0.0     000103 118 (1.6-  3.0-)   120708 C43  0.9-  1.2-
    991215 704  0.4-  0.3+    000105 726  0.0   1.2-    120708 I93  0.0   0.3+
    991215 704  0.1+  0.3+    000105 726  0.1+  1.3+    120708 I76  0.1-  0.2+
    991215 704  0.6-  0.2+    000105 726  1.5-  0.6-    120708 I76  0.0   0.3+
    991215 704  0.0   0.4+    000105 704  0.2+  0.3-    120708 I76  0.2+  0.1-
    991215 704  0.3+  0.4+    000105 726 (2.5+  1.0+)   120708 I76  0.1-  0.2+
    991215 704  0.2-  0.1+    000105 704  0.6+  0.5-    120708 I76  0.0   0.3+
    991215 670 (2.6-  1.8+)   000105 704  0.7+  0.3+    120708 I76  0.3-  0.2+
    991215 670  0.1+  1.8-    000105 704  0.3+  0.7-    120708 204  0.1+  0.3+
    991216 704  0.3-  0.2-    000105 704  0.5+  0.7-    120708 204  0.1+  0.2+
    991216 704  0.4-  0.2+    000105 118  0.2+  0.6+    120708 204  0.1-  0.1+
    991216 704  0.2-  0.3+    000105 118  0.3-  0.6+    120708 958  0.0   0.0
    991216 704  0.3-  0.3+    000106 704  1.4-  0.4-    120708 958  0.2+  0.3+
    991216 704  0.2-  0.1+    000106 704  0.2-  0.2+    120708 958  0.3-  0.6-
    991216 402  0.3-  1.0-    000106 704  0.9-  0.1-    120708 958  0.2+  0.2+
    991216 402  1.4-  1.3+    000106 704  0.5+  0.1-    120709 958  0.1+  0.1+
    991216 402  0.2+  0.9-    000106 704  0.1+  0.9-
    991217 046  0.0   0.7+    000109 704  0.3+  0.5-
    
    Ephemeris:
    1999 XL136               a,e,i = 1.82, 0.65, 9                   q = 0.6408
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 06 09    06 26 07.8 +11 03 45   0.1707  0.8590    21.8   154.0    24.7
    ...
    2012 06 24    13 11 38.5 +17 23 00   0.01176 1.0178    96.1    83.2    12.9
    ...
    2012 07 02    17 46 40.8 -07 01 21   0.09365 1.1044   158.7    19.5    15.7
    ...
    2012 07 08    17 58 42.3 -08 17 53   0.1628  1.1691   157.8    19.2    17.0
    2012 07 09    17 59 53.1 -08 26 12   0.1746  1.1798   157.4    19.3    17.1
    2012 07 10    18 00 57.2 -08 33 56   0.1864  1.1905   157.0    19.5    17.3
    ...
    2012 07 16    18 05 58.6 -09 12 53   0.2589  1.2540   153.9    20.9    18.2
    ...
    2012 07 24    18 11 22.8 -09 55 43   0.3604  1.3371   148.8    23.2    19.1
    ...
    2012 08 08    18 22 11.3 -11 04 06   0.5676  1.4867   138.4    26.9    20.4
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-N11
    

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