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IAU Minor Planet Center

Minor Planet Center

MPEC 2002-E51 : 1991 FB

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M.P.E.C. 2002-E51                                Issued 2002 Mar. 14, 21:00 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://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                    1991 FB

Additional Observations:
     J91F00B  C2002 03 12.39303 13 57 55.83 +01 00 19.0          17.8        704
     J91F00B  C2002 03 12.40641 13 57 58.01 +00 59 54.6          18.6        704
     J91F00B  C2002 03 12.42010 13 58 00.16 +00 59 29.0          18.4        704
     J91F00B  C2002 03 12.43330 13 58 02.27 +00 59 05.1          18.4        704
     J91F00B  C2002 03 12.44648 13 58 04.39 +00 58 40.5          18.4        704
     J91F00B  C2002 03 13.04668 13 59 47.84 +00 39 44.6                      118
     J91F00B  C2002 03 13.05006 13 59 48.38 +00 39 38.8                      118
     J91F00B  C2002 03 13.05428 13 59 49.14 +00 39 31.2                      118
     J91F00B  C2002 03 13.05543 13 59 49.23 +00 39 29.0          17.2 R      118
     J91F00B  C2002 03 13.08265 13 59 53.96 +00 38 36.1          18.0 V      198
     J91F00B  C2002 03 13.08722 13 59 54.66 +00 38 28.5          17.9 V      198
     J91F00B  C2002 03 13.09356 13 59 55.62 +00 38 17.3          18.0 V      198
     J91F00B  C2002 03 13.25586 14 00 25.49 +00 33 09.2          18.1 R      651
     J91F00B  C2002 03 13.25657 14 00 25.54 +00 33 06.4          18.2        704
     J91F00B  C2002 03 13.25804 14 00 25.86 +00 33 05.0          18.0 R      651
     J91F00B  C2002 03 13.26012 14 00 26.21 +00 33 00.6          18.1 R      651
     J91F00B  C2002 03 13.27034 14 00 27.82 +00 32 40.5          18.2        704
     J91F00B  C2002 03 13.28418 14 00 30.13 +00 32 13.2          18.7        704
     J91F00B  C2002 03 13.29034 14 00 30.83 +00 31 59.4          17.4 R      649
     J91F00B  C2002 03 13.29248 14 00 31.17 +00 31 55.5          17.4 R      649
     J91F00B  C2002 03 13.29457 14 00 31.54 +00 31 51.4          17.5 R      649
     J91F00B  C2002 03 13.29663 14 00 31.86 +00 31 47.3          17.5 R      649
     J91F00B  C2002 03 13.29803 14 00 32.46 +00 31 46.2          18.3        704
     J91F00B  C2002 03 13.29878 14 00 32.22 +00 31 43.0          17.5 R      649
     J91F00B  C2002 03 13.31191 14 00 34.77 +00 31 19.0          18.6        704
     J91F00B  C2002 03 13.32205 14 00 36.35 +00 31 00.1          17.9 R      448
     J91F00B  C2002 03 13.32450 14 00 36.74 +00 30 54.7          18.0 R      448
     J91F00B  C2002 03 13.32736 14 00 37.23 +00 30 49.6          17.9 R      448
     J91F00B  C2002 03 13.47833 14 01 02.32 +00 25 56.3          17.6 R      926
     J91F00B  C2002 03 13.48175 14 01 02.78 +00 25 49.8          18.1 R      926
     J91F00B  C2002 03 13.48370 14 01 03.23 +00 25 45.4          17.6 R      926
     J91F00B  C2002 03 13.98933 14 02 34.07 +00 08 53.6                      557
     J91F00B  C2002 03 13.99096 14 02 34.28 +00 08 50.1                      557
     J91F00B  C2002 03 13.99259 14 02 34.60 +00 08 47.5                      557
     J91F00B  C2002 03 13.99422 14 02 34.88 +00 08 43.8                      557
     J91F00B  C2002 03 13.99586 14 02 35.16 +00 08 40.6                      557
     J91F00B  C2002 03 14.00122 14 02 36.12 +00 08 31.7          17.6 V      198
     J91F00B  C2002 03 14.00469 14 02 36.93 +00 08 33.2                      246
     J91F00B  C2002 03 14.00590 14 02 36.87 +00 08 21.5                      246
     J91F00B  C2002 03 14.00714 14 02 37.06 +00 08 18.6                      246
     J91F00B  C2002 03 14.00831 14 02 37.32 +00 08 16.7                      246
     J91F00B  C2002 03 14.00961 14 02 37.48 +00 08 13.9                      246
     J91F00B  C2002 03 14.01126 14 02 37.88 +00 08 11.2          17.6 V      198
     J91F00B  C2002 03 14.01878 14 02 39.20 +00 07 56.3          17.5 V      198
     J91F00B  C2002 03 14.15681 14 03 02.77 +00 03 19.6          18.1 R      620
     J91F00B  C2002 03 14.16792 14 03 04.82 +00 02 57.0          18.2 R      620
     J91F00B  C2002 03 14.17236 14 03 05.55 +00 02 49.0          18.0 R      620
     J91F00B  C2002 03 14.45573 14 03 56.91 -00 06 50.4          18.5 R      926
     J91F00B  C2002 03 14.46311 14 03 58.25 -00 07 04.6          18.0 R      926

Observer details:
118 Modra.  Observers A. Galad, S. Gajdos.  0.6-m f/5.5 reflector + CCD.
198 Wildberg.  Observer R. Apitzsch.  0.235-m Schmidt-Cassegrain + CCD.
246 Klet Observatory-KLENOT.  Observers M. Tichy, M. Kocer.  1.06-m KLENOT
    telescope + CCD.
448 Desert Moon Observatory.  Observer B. Stevens.  0.30-m f/6.3
    Schmidt-Cassegrain + CCD.
557 Ondrejov.  Observer P. Kusnirak.  0.65-m f/3.6 reflector + CCD.
620 Observatorio Astronomico de Mallorca.  Observers S. Sanchez, J. Nomen.
    0.40-m f/2.0 Schmidt + CCD.
649 Powell Observatory, Louisburg.  Observers K. Smalley, R. Fredrick.
    0.75-m Newtonian + CCD.
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli.  Measurers
    J. Stuart, R. Sayer, J. B. Evans, H. Viggh.  1.0-m f/2.15 reflector + CCD.
926 Tenagra II Observatory.  Observers P. R. Holvorcem, M. Schwartz.  Measurer
    P. R. Holvorcem.  0.5-m f/10 Ritchey-Chretien + CCD.

Orbital elements:
1991 FB
Epoch 2002 May 6.0 TT = JDT 2452400.5                   MPC
M 359.40115              (2000.0)            P               Q
n   0.26994797     Peri.  219.94063     -0.53168172     +0.84553459
a   2.3710971      Node    18.10780     -0.73139011     -0.42929630
e   0.5665496      Incl.    9.04181     -0.42706329     -0.31745228
P   3.65           H   19.1           G   0.15           U   3
Residuals in seconds of arc
910312 675  2.1-  0.1+    020312 704  0.8+  0.1-    020313 448  1.0-  0.6-
910312 675 (3.2-  2.1-)   020313 118  0.6+  0.4-    020313 926  0.5+  0.1+
910318 413  1.9-  0.4+    020313 118  0.4+  0.3+    020313 926  1.1-  0.3+
910318 413 (3.2-  2.2+)   020313 118  1.3+  0.8+    020313 926  0.8+  0.2-
910319 413  0.4-  1.2-    020313 118  0.1-  0.8+    020313 557  0.4+  0.2-
910319 413  1.4-  0.1+    020313 198  0.5+  0.1+    020313 557  0.7-  0.4-
910320 413  1.4+  1.4-    020313 198  0.3-  1.3+    020313 557  0.1-  0.3+
910321 413  1.0-  0.2-    020313 198 (1.6-  2.3+)   020313 557  0.1-  0.2-
910321 413  1.5-  0.8+    020313 651  0.4+  0.1+    020313 557  0.1-  0.1-
910323 413  0.2-  1.1-    020313 704  0.8+  0.3-    020314 198 (1.5-  1.4+)
910324 688  0.6+  1.1-    020313 651  0.4+  0.2+    020314 246 (3.5+ 10.0+)
910324 688  0.5+  1.2-    020313 651  0.4+  0.2-    020314 246  0.5-  0.7+
910324 688  0.6+  1.0-    020313 704  0.4+  0.4+    020314 246  0.8-  0.3+
910324 413  0.1+  1.0-    020313 704  0.3+  0.1-    020314 246  0.1+  0.8+
910413 413  1.2+  0.1-    020313 649  0.4+  0.0     020314 246  0.9-  0.6+
910416 474  0.8-  0.1-    020313 649  0.2+  0.3+    020314 198  0.9-  1.1+
910416 474  1.1-  0.1+    020313 649  0.5+  0.2+    020314 198  0.4-  1.4+
910421 474  0.5+  0.8+    020313 649  0.2+  0.1+    020314 620  1.4-  0.7+
910421 474 (0.8-  2.7+)   020313 704  0.7+  0.3-    020314 620  1.0+  0.7+
020312 704  0.3+  0.5-    020313 649  0.3+  0.0     020314 620  0.5+  1.7+
020312 704  1.1+  0.2-    020313 704  0.7+  0.6-    020314 926  0.5-  0.4-
020312 704  0.6+  0.5-    020313 448  1.0-  0.4-    020314 926  0.8+  0.7+
020312 704  0.6+  0.0     020313 448  1.3-  1.1-

Ephemeris:
1991 FB                  a,e,i = 2.37, 0.57, 9                   q = 1.0278
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2002 03 07    13 43.81   +03 25.1    0.346    1.281   141.4    28.9    18.6
2002 03 17    14 12.01   -01 40.6    0.262    1.215   143.4    29.2    17.9
2002 03 27    14 53.55   -10 32.4    0.194    1.156   141.7    32.4    17.2
2002 04 06    16 04.13   -25 06.4    0.148    1.105   131.9    42.3    16.8
2002 04 16    18 05.00   -40 57.5    0.137    1.066   113.6    59.6    17.1
2002 04 26    20 24.78   -46 20.2    0.160    1.039    97.6    73.6    17.8
2002 05 06    21 57.47   -43 53.7    0.200    1.028    89.9    78.8    18.4
2002 05 16    22 49.08   -40 16.0    0.245    1.033    88.1    78.1    18.8
2002 05 26    23 19.46   -37 12.0    0.289    1.052    89.8    74.3    19.1
2002 06 05    23 38.19   -34 52.8    0.328    1.086    93.7    68.8    19.3
2002 06 15    23 48.75   -33 17.1    0.361    1.132    99.4    62.3    19.4
2002 06 25    23 52.28   -32 20.2    0.389    1.188   106.6    55.1    19.4
2002 07 05    23 49.03   -31 55.0    0.414    1.251   115.4    47.2    19.5
2002 07 15    23 38.92   -31 50.7    0.438    1.320   125.6    38.8    19.5
2002 07 25    23 22.71   -31 49.4    0.466    1.392   136.7    30.0    19.5
2002 08 04    23 02.37   -31 32.2    0.505    1.467   148.0    21.5    19.5
2002 08 14    22 40.92   -30 46.0    0.558    1.543   157.6    14.5    19.6
2002 08 24    22 21.70   -29 28.7    0.629    1.620   161.6    11.4    19.8
2002 09 03    22 06.87   -27 49.2    0.720    1.697   157.7    13.0    20.3
2002 09 13    21 57.19   -25 58.2    0.829    1.773   149.8    16.6    20.8
2002 09 23    21 52.46   -24 04.0    0.957    1.848   141.1    20.0    21.3
2002 10 03    21 51.89   -22 11.1    1.100    1.922   132.4    22.6    21.8

Timothy B. Spahr             (C) Copyright 2002 MPC           M.P.E.C. 2002-E51

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