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Minor Planet Center

MPEC 2007-W44 : 2007 WT4

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M.P.E.C. 2007-W44                                Issued 2007 Nov. 21, 21:30 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 WT4

Observations:
     K07W04T* C2007 11 19.19410 03 53 49.24 +15 54 50.7          20.9 V EW044691
     K07W04T  C2007 11 19.21171 03 53 49.81 +15 54 26.5          21.3 V EW044691
     K07W04T  C2007 11 19.22934 03 53 50.39 +15 54 03.5          21.1 V EW044691
     K07W04T  C2007 11 19.27958 03 53 51.90 +15 52 55.5          21.2 V EW044291
     K07W04T  C2007 11 19.28353 03 53 52.04 +15 52 50.1          21.6 V EW044291
     K07W04T  C2007 11 19.28752 03 53 52.14 +15 52 44.6          21.3 V EW044291
     K07W04T  C2007 11 19.38121 03 53 54.91 +15 50 35.3          20.5 V EW044291
     K07W04T  C2007 11 19.38506 03 53 55.08 +15 50 30.4          21.0 V EW044291
     K07W04T  C2007 11 19.38889 03 53 55.20 +15 50 25.3          20.9 V EW044291
     K07W04T HC2007 11 20.16621 03 54 28.37 +15 32 37.4                 EW044291
     K07W04T HC2007 11 20.17016 03 54 28.47 +15 32 33.3                 EW044291
     K07W04T  C2007 11 20.17403 03 54 28.62 +15 32 27.8          20.9 V EW044291
     K07W04T  C2007 11 21.27960 03 55 11.64 +15 07 12.1          20.9 V EW044G96
     K07W04T  C2007 11 21.28184 03 55 11.71 +15 07 09.0          21.2 V EW044G96
     K07W04T  C2007 11 21.28412 03 55 11.82 +15 07 06.3          20.6 V EW044G96
     K07W04T  C2007 11 21.28635 03 55 11.85 +15 07 02.9          20.3 V EW044G96

Observer details:
291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer R. S. McMillan.  0.9-m f/3
    reflector + CCD.
G96 Mt. Lemmon Survey.  Observer A. Boattini.  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.

Orbital elements:
2007 WT4                                                 Earth MOID = 0.3063 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5                 MPC
M 347.53572              (2000.0)            P               Q
n   0.29570032     Peri.  203.66686     +0.30518925     -0.94792903
a   2.2313525      Node   228.69729     +0.89192227     +0.31803328
e   0.4228095      Incl.    6.96140     +0.33366777     +0.01689339
P   3.33           H   22.5           G   0.15           U   7
Residuals in seconds of arc
071119 691  0.1-  0.0     071119 291  0.6-  0.4-    071121 G96  0.1-  0.0
071119 691  0.1-  0.5-    071119 291  0.2+  0.0     071121 G96  0.0   0.1-
071119 691  0.3+  0.2+    071119 291  0.2+  0.3+    071121 G96  0.6+  0.4+
071119 291  0.0   0.2+    071120 291  0.1+  0.7-    071121 G96  0.1+  0.0
071119 291  0.3+  0.2+    071120 291  0.3-  0.4+
071119 291  0.0   0.1+    071120 291  0.0   0.1+

Ephemeris:
2007 WT4                 a,e,i = 2.23, 0.42, 7                   q = 1.2879
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2007 11 16    03 51.63   +17 07.2    0.319    1.306   173.0     5.3    21.0
2007 11 26    03 58.30   +13 20.1    0.309    1.293   172.4     5.8    21.0
2007 12 06    04 05.22   +09 51.1    0.312    1.288   163.8    12.3    21.3
2007 12 16    04 13.57   +07 13.2    0.329    1.290   155.3    18.6    21.6
2007 12 26    04 24.22   +05 40.9    0.357    1.300   147.8    23.8    22.0

Timothy B. Spahr             (C) Copyright 2007 MPC           M.P.E.C. 2007-W44

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