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IAU Minor Planet Center

Minor Planet Center

MPEC 2007-X28 : 2007 XZ9

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M.P.E.C. 2007-X28                                Issued 2007 Dec. 6, 18:11 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 http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2007 XZ9

Observations:
     K07X09Z* C2007 12 04.19408 03 00 14.91 +12 15 37.1          18.9   EX028704
     K07X09Z  C2007 12 04.20683 03 00 41.98 +12 16 51.2          18.8   EX028704
     K07X09Z  C2007 12 04.21964 03 01 09.06 +12 18 05.2          18.9   EX028704
     K07X09Z  C2007 12 04.23232 03 01 35.68 +12 19 17.6          19.2   EX028704
     K07X09Z  C2007 12 04.24497 03 02 02.19 +12 20 28.7          19.7   EX028704
     K07X09Z  C2007 12 05.18492 03 31 07.81 +13 29 24.7          19.7   EX028704
     K07X09Z  C2007 12 05.19770 03 31 26.79 +13 30 08.9          20.0   EX028704
     K07X09Z  C2007 12 05.21040 03 31 45.46 +13 30 52.7          19.8   EX028704
     K07X09Z  C2007 12 05.22307 03 32 03.99 +13 31 34.5          19.2   EX028704
     K07X09Z  C2007 12 05.23584 03 32 22.61 +13 32 16.9          19.4   EX028704
     K07X09Z  C2007 12 05.95489 03 48 43.79 +14 04 25.3                 EX028J95
     K07X09Z  C2007 12 05.95824 03 48 47.65 +14 04 33.7                 EX028J95
     K07X09Z  C2007 12 05.96192 03 48 51.88 +14 04 42.2                 EX028J95
     K07X09Z  C2007 12 05.97217 03 49 03.70 +14 05 05.5          18.9 R EX028J95
     K07X09Z  C2007 12 06.01176 03 49 46.39 +14 06 38.2          18.7 V EX028B03
     K07X09Z  C2007 12 06.01828 03 49 53.96 +14 06 51.8          18.8 V EX028B03
     K07X09Z  C2007 12 06.02317 03 49 59.47 +14 07 02.5          19.2 V EX028B03
     K07X09Z  C2007 12 06.02806 03 50 05.10 +14 07 11.9          19.5 V EX028B03
     K07X09Z  C2007 12 06.03024 03 50 07.63 +14 07 24.8          19.0 V EX028595
     K07X09Z  C2007 12 06.03436 03 50 12.34 +14 07 33.2          19.2 V EX028595
     K07X09Z  C2007 12 06.04687 03 50 26.58 +14 07 59.8          19.0 V EX028595
     K07X09Z  C2007 12 06.21274 03 53 47.29 +14 14 42.7          18.8 R EX028651
     K07X09Z  C2007 12 06.21326 03 53 47.82 +14 14 43.8          18.9 R EX028651
     K07X09Z  C2007 12 06.21377 03 53 48.38 +14 14 45.0          19.1 R EX028651
     K07X09Z  C2007 12 06.28105 03 54 58.21 +14 16 59.5          17.8 V EX028G96
     K07X09Z  C2007 12 06.28678 03 55 04.11 +14 17 10.0          18.3 V EX028G96
     K07X09Z  C2007 12 06.29250 03 55 09.94 +14 17 21.0          18.3 V EX028G96
     K07X09Z  C2007 12 06.29819 03 55 15.81 +14 17 32.0          18.1 V EX028G96

Observer details:
595 Farra d'Isonzo.  Observers L. Bittesini, G. Lombardi, E. Pettarin,
    F. Piani.  Measurers G. Lombardi, E. Pettarin.  0.40-m f/4.5 reflector
    + CCD.
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    Newtonian reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
    R. Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
    f/2.15 reflector + CCD.
B03 Alter Satzberg, Vienna.  Observer M. Pietschnig.  0.35-m f/7
    Schmidt-Cassegrain + CCD.
G96 Mt. Lemmon Survey.  Observer S. M. Larson.  Measurers E. C. Beshore,
    A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
    R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2007 XZ9                                                 Earth MOID = 0.0017 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5                 MPC
M   0.77974              (2000.0)            P               Q
n   0.33825904     Peri.  125.74507     +0.97032879     -0.23673899
a   2.0400295      Node   247.99402     +0.20117713     +0.90326902
e   0.5862986      Incl.    3.03941     +0.13412605     +0.35785434
P   2.91           H   24.7           G   0.15           U   6
Residuals in seconds of arc
071204 704  0.2-  0.0     071205 J95  0.7+  0.8-    071206 595  0.6-  1.1+
071204 704  0.1-  0.3-    071205 J95  0.4+  0.1-    071206 651  0.1+  0.0
071204 704  0.3+  0.1-    071205 J95  0.0   0.0     071206 651  0.1-  0.0
071204 704  0.2-  0.0     071205 J95  0.2-  0.1-    071206 651  0.2+  0.1+
071204 704  0.3+  0.2-    071206 B03  0.9-  0.2+    071206 G96  0.3-  0.6+
071205 704  0.5-  0.3+    071206 B03  0.5+  0.0     071206 G96  0.0   0.0
071205 704  0.3+  0.5+    071206 B03  0.8-  0.4+    071206 G96  0.5-  0.0
071205 704  0.1-  1.1+    071206 B03  0.3-  0.4-    071206 G96  0.1+  0.1+
071205 704  0.6-  0.3+    071206 595  0.6-  0.6+
071205 704  0.6-  0.3+    071206 595  0.4-  0.4+

Ephemeris:
2007 XZ9                 a,e,i = 2.04, 0.59, 3                   q = 0.8440
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2007 12 06    03 49.62   +14 08.1    0.0445   1.028   163.9    15.4    18.8
2007 12 07    04 06.79   +14 38.1    0.0518   1.036   166.7    12.7    19.1
2007 12 08    04 19.74   +14 57.8    0.0593   1.043   168.4    10.9    19.3
2007 12 09    04 29.79   +15 11.5    0.0670   1.051   169.5     9.9    19.6
2007 12 10    04 37.79   +15 21.4    0.0749   1.059   170.1     9.2    19.8
2007 12 11    04 44.28   +15 29.1    0.0828   1.067   170.4     8.8    20.0
2007 12 12    04 49.66   +15 35.2    0.0909   1.074   170.6     8.6    20.2
2007 12 13    04 54.18   +15 40.2    0.0990   1.082   170.6     8.5    20.4
2007 12 14    04 58.03   +15 44.6    0.107    1.090   170.5     8.5    20.6
2007 12 15    05 01.35   +15 48.4    0.116    1.098   170.4     8.6    20.8
2007 12 16    05 04.25   +15 51.9    0.124    1.107   170.2     8.8    21.0
2007 12 17    05 06.80   +15 55.1    0.132    1.115   169.9     8.9    21.1
2007 12 18    05 09.06   +15 58.2    0.141    1.123   169.5     9.2    21.3
2007 12 19    05 11.09   +16 01.1    0.150    1.131   169.1     9.4    21.5
2007 12 20    05 12.92   +16 03.9    0.158    1.139   168.7     9.8    21.6
2007 12 21    05 14.59   +16 06.7    0.167    1.148   168.2    10.1    21.8
2007 12 22    05 16.11   +16 09.5    0.176    1.156   167.7    10.5    21.9
2007 12 23    05 17.51   +16 12.2    0.185    1.165   167.1    10.8    22.0
2007 12 24    05 18.82   +16 14.9    0.194    1.173   166.5    11.3    22.2
2007 12 25    05 20.03   +16 17.6    0.203    1.182   165.9    11.7    22.3
2007 12 26    05 21.17   +16 20.4    0.212    1.190   165.3    12.1    22.4

Timothy B. Spahr             (C) Copyright 2007 MPC           M.P.E.C. 2007-X28

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