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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-X71 : 2004 XB45

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M.P.E.C. 2004-X71                                Issued 2004 Dec. 14, 13:39 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.

                  Supported in part by the Brinson Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2004 XB45

Observations:
     K04X45B* C2004 12 13.17846 05 48 04.26 +18 00 02.7          20.4 V EX071691
     K04X45B  C2004 12 13.20466 05 48 09.10 +18 00 20.0          19.8 V EX071691
     K04X45B  C2004 12 13.23019 05 48 13.64 +18 00 36.2          19.8 V EX071691
     K04X45B  C2004 12 13.93346 05 51 47.08 +18 04 53.4                 EX071246
     K04X45B  C2004 12 13.93433 05 51 47.35 +18 04 54.0                 EX071246
     K04X45B  C2004 12 13.93506 05 51 47.56 +18 04 54.4                 EX071246
     K04X45B tC2004 12 14.25569 05 54 12.20 +18 09 40.6          20.3 V EX071291
     K04X45B tC2004 12 14.27984 05 54 21.20 +18 10 02.7          20.2 V EX071291
     K04X45B tC2004 12 14.29225 05 54 25.88 +18 10 14.2          19.6 V EX071291
     K04X45B 2C2004 12 14.51085 05 56 00.10 +18 11 52.5          17.9 R EX071H06
     K04X45B 2C2004 12 14.51458 05 56 02.22 +18 11 53.3          18.2 R EX071H06
     K04X45B 2C2004 12 14.51828 05 56 04.21 +18 11 55.3          18.3 R EX071H06

Observer details:
246 Klet Observatory-KLENOT.  Observers M. Tichy, M. Kocer.  Measurer M. Tichy.
    1.06-m KLENOT Telescope + CCD.
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer A. F. Tubbiolo.  0.9-m f/3
    reflector + CCD.
H06 New Mexico Skies Observatory.  Observer R. Hutsebaut.  0.25-m reflector
    + CCD.

Orbital elements:
2004 XB45
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5                 MPC
M 357.23191              (2000.0)            P               Q
n   0.51974353     Peri.   86.01175     -0.98635925     -0.15537582
a   1.5320631      Node    85.04367     +0.12088415     -0.90784222
e   0.5750158      Incl.    3.12720     +0.11172492     -0.38946227
P   1.90           H   26.6           G   0.15           U   8
Residuals in seconds of arc
041213 691  0.2-  0.1-    041213 246  0.2-  0.6+    041214 291  1.3+  0.3+
041213 691  0.0   0.4-    041213 246  0.3-  0.5+    041214 H06  0.7+  0.5-
041213 691  0.5+  0.4-    041214 291  0.7-  0.0     041214 H06  0.5+  0.6-
041213 246  0.3-  0.6+    041214 291  0.2+  0.3-    041214 H06  1.5-  0.5+

Ephemeris:
2004 XB45                a,e,i = 1.53, 0.58, 3                   q = 0.6511
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 12 11    05 42.35   +17 52.9    0.057    1.041   171.5     8.1    21.0
2004 12 12    05 44.27   +17 55.8    0.047    1.031   171.9     7.7    20.6
2004 12 13    05 47.19   +18 00.4    0.037    1.021   172.2     7.5    20.0
2004 12 14    05 52.16   +18 08.3    0.027    1.012   172.1     7.7    19.4
2004 12 15    06 02.43   +18 23.5    0.018    1.002   171.1     8.7    18.4
2004 12 16    06 37.80   +19 00.7    0.0081   0.992   164.8    15.1    17.0
2004 12 17    14 24.23   -06 08.7    0.0029   0.982    50.0   129.9    19.6
2004 12 18    16 52.23   -15 55.9    0.012    0.972    14.3   165.5    30.4
2004 12 19    17 11.56   -16 46.2    0.022    0.963    10.9   168.8    34.0
2004 12 20    17 18.96   -17 03.8    0.031    0.953    10.2   169.5
2004 12 21    17 22.87   -17 12.9    0.041    0.943    10.2   169.4

Timothy B. Spahr             (C) Copyright 2004 MPC           M.P.E.C. 2004-X71

Read MPEC 2004-X70 Read MPEC 2004-X72


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