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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-V35 : 1983 LB

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M.P.E.C. 2004-V35                                Issued 2004 Nov. 7, 01:36 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

                                    1983 LB

Additional Observations:
     J83L00B  C2004 11 05.47102 04 19 55.09 -01 30 13.9          19.7   EV035644
     J83L00B  C2004 11 05.49247 04 19 53.01 -01 30 06.0          20.2   EV035644
     J83L00B  C2004 11 05.51516 04 19 50.95 -01 29 57.9          20.1   EV035644
     J83L00B  C2004 11 06.29921 04 18 36.84 -01 24 59.2          19.2 R EV035734
     J83L00B  C2004 11 06.30783 04 18 35.93 -01 24 55.8          19.7 R EV035734
     J83L00B  C2004 11 06.31645 04 18 35.10 -01 24 51.9          19.6 R EV035734
     J83L00B  C2004 11 06.32549 04 18 34.07 -01 24 49.3          20.1 R EV035734
     J83L00B  C2004 11 06.58519 04 18 09.33 -01 22 57.1          18.9 R EV035474
     J83L00B  C2004 11 06.58934 04 18 08.93 -01 22 55.9          19.2 R EV035474
     J83L00B  C2004 11 06.59826 04 18 07.99 -01 22 52.5          19.2 R EV035474
     J83L00B  C2004 11 06.60127 04 18 07.76 -01 22 51.4          19.2 R EV035474
     J83L00B  C2004 11 06.98338 04 17 31.40 -01 20 32.0          19.8 R EV035176
     J83L00B  C2004 11 06.98573 04 17 31.15 -01 20 31.1          19.6 R EV035176
     J83L00B  C2004 11 06.98810 04 17 30.91 -01 20 30.1          20.0 R EV035176
     J83L00B  C2004 11 06.99052 04 17 30.65 -01 20 29.1          20.0 R EV035176

Observer details:
176 Observatori Astronomic de Consell.  Observers A. Lopez, R. Pacheco,
    J. Forteza.  0.41-m f/4 reflector + CCD.
474 Mount John Observatory, Lake Tekapo.  Observer A. C. Gilmore.  1.0-m f/7.7
    reflector + CCD.
644 Palomar Mountain/NEAT.  Observers R. Bambery, M. Hicks, K. Lawrence,
    E. Helin, R. Thicksten.  1.2-m Schmidt + CCD.
734 Farpoint Observatory.  Observer D. Tibbets.  0.4-m f/6 Schmidt-Cassegrain
    + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
041105 644 1.21- 1.12-    041106 176 1.22- 1.11-    MPC 21969   +3.2 day

Orbital elements:
1983 LB
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5                 MPC
M  77.05997              (2000.0)            P               Q
n   0.28483626     Peri.  220.71614     +0.46813473     +0.77643813
a   2.2877358      Node    81.27704     -0.65869185     +0.62487563
e   0.4778626      Incl.   25.26656     -0.58904577     -0.08169626
P   3.46           H   17.2           G   0.15           U   3
Residuals in seconds of arc
830613 675 (1.5-  4.9-)   830711 474  0.0   0.6-    041106 734  1.5-  0.3-
830613 675 (6.8-  5.9-)   830711 474  0.0   0.6+    041106 474  0.6-  1.1+
830613 675 (0.4+  4.0-)   830808 474 (0.1+  3.2-)   041106 474  0.5-  0.7+
830613 675  1.4+  1.0+    830808 474  0.6-  0.8+    041106 474  1.5-  0.6+
830617 675  0.8-  0.0     041105 644  0.3-  0.2+    041106 474  0.5-  0.5+
830618 675  1.3+  0.1+    041105 644  0.4-  0.0     041106 176  0.3+  0.3-
830619 675  0.7+  0.1-    041105 644  1.5+  0.4-    041106 176  0.0   0.4-
830620 675  0.7-  0.2-    041106 734  1.4+  0.1-    041106 176  0.1-  0.3-
830706 474  1.1-  0.3-    041106 734  0.4+  0.0     041106 176  0.4-  0.3-
830706 474  0.1-  0.2+    041106 734  0.6+  0.6+

Ephemeris:
1983 LB                  a,e,i = 2.29, 0.48, 25                  q = 1.1945
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 11 01    04 26.77   -01 55.9    1.167    2.065   145.9    15.6    20.0
2004 11 11    04 11.00   -00 52.2    1.182    2.123   155.6    11.1    19.9
2004 11 21    03 54.61   +00 32.7    1.224    2.180   160.5     8.7    19.9
2004 12 01    03 39.52   +02 14.2    1.296    2.237   157.0     9.9    20.2
2004 12 11    03 27.16   +04 05.6    1.395    2.291   148.2    13.1    20.5
2004 12 21    03 18.32   +06 01.2    1.520    2.345   138.0    16.3    20.8
2004 12 31    03 13.17   +07 56.5    1.665    2.397   127.8    18.9    21.2
2005 01 10    03 11.46   +09 48.9    1.826    2.448   118.1    20.8    21.5
2005 01 20    03 12.81   +11 37.2    1.999    2.498   108.9    21.9    21.8
2005 01 30    03 16.73   +13 20.6    2.180    2.546   100.2    22.4    22.0

Kyle E. Smalley              (C) Copyright 2004 MPC           M.P.E.C. 2004-V35

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