MPEC 1999-M04: 1999 LN28

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M.P.E.C. 1999-M04                                Issued 1999 June 17, 15:59 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.

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

                                   1999 LN28

Observations:
     J99L28N* C1999 06 12.35183 18 32 09.49 +02 16 50.5          17.6        704
     J99L28N  C1999 06 12.36388 18 32 10.84 +02 16 45.0          17.8        704
     J99L28N  C1999 06 12.37593 18 32 12.26 +02 16 39.6          17.8        704
     J99L28N  C1999 06 12.38799 18 32 13.63 +02 16 34.0          17.4        704
     J99L28N  C1999 06 12.40004 18 32 15.03 +02 16 28.1          17.4        704
     J99L28N  C1999 06 14.29153 18 36 23.79 +01 59 40.4          17.3        704
     J99L28N  C1999 06 14.30368 18 36 25.27 +01 59 32.8          17.6        704
     J99L28N  C1999 06 14.31571 18 36 26.73 +01 59 25.5          17.8        704
     J99L28N  C1999 06 14.32776 18 36 28.19 +01 59 18.6          17.9        704
     J99L28N  C1999 06 14.33980 18 36 29.66 +01 59 11.6          18.0        704
     J99L28N  C1999 06 14.97725 18 37 56.30 +01 52 25.8          18.2        120
     J99L28N  C1999 06 14.97954 18 37 56.62 +01 52 24.5                      120
     J99L28N  C1999 06 14.98170 18 37 56.87 +01 52 23.1                      120
     J99L28N  C1999 06 14.99502 18 37 58.86 +01 52 17.4          16.6 R      620
     J99L28N  C1999 06 15.00561 18 38 00.04 +01 52 05.6                      611
     J99L28N  C1999 06 15.00625 18 38 00.32 +01 52 09.9                      620
     J99L28N  C1999 06 15.00839 18 38 00.37 +01 52 04.2                      611
     J99L28N  C1999 06 15.01049 18 38 00.67 +01 52 02.5                      611
     J99L28N  C1999 06 15.01226 18 38 01.08 +01 52 06.1                      620
     J99L28N  C1999 06 15.04289 18 38 04.48 +01 51 41.6          17.4 R      118
     J99L28N  C1999 06 15.04567 18 38 04.85 +01 51 39.7                      118
     J99L28N  C1999 06 15.04947 18 38 05.33 +01 51 37.3                      118
     J99L28N  C1999 06 15.28943 18 38 39.46 +01 49 05.2          17.4        704
     J99L28N  C1999 06 15.30159 18 38 41.01 +01 48 57.2          17.7        704
     J99L28N  C1999 06 15.31376 18 38 42.53 +01 48 49.1          17.6        704
     J99L28N  C1999 06 15.32592 18 38 44.05 +01 48 40.5          17.9        704
     J99L28N  C1999 06 15.33811 18 38 45.59 +01 48 32.4          17.9        704
     J99L28N  C1999 06 15.41646 18 38 55.45 +01 47 40.8          16.8        696
     J99L28N  C1999 06 15.45319 18 39 00.10 +01 47 15.7                      696
     J99L28N  C1999 06 15.91078 18 40 06.27 +01 41 45.1          18.0        120
     J99L28N IC1999 06 15.91277 18 40 06.61 +01 41 40.9                      120
     J99L28N  C1999 06 15.94362 18 40 10.94 +01 41 23.9                      620
     J99L28N  C1999 06 15.94755 18 40 11.27 +01 41 20.9                      620
     J99L28N  C1999 06 15.95344 18 40 12.05 +01 41 17.0                      620
     J99L28N  C1999 06 15.96174 18 40 13.27 +01 41 10.9                      620
     J99L28N  C1999 06 16.94692 18 42 33.37 +01 28 34.1          16.9 R      118
     J99L28N  C1999 06 16.95443 18 42 34.31 +01 28 27.7                      118
     J99L28N  C1999 06 16.95829 18 42 34.76 +01 28 24.6                      118
     J99L28N  C1999 06 16.95987 18 42 35.27 +01 28 25.0          17.5 V      104
     J99L28N  C1999 06 16.96307 18 42 35.68 +01 28 23.1                      104
     J99L28N  C1999 06 16.96516 18 42 35.94 +01 28 21.5                      104
     J99L28N  C1999 06 16.99270 18 42 39.85 +01 28 01.1                      620
     J99L28N  C1999 06 16.99699 18 42 40.43 +01 27 57.9          16.9 R      620
     J99L28N  C1999 06 17.00266 18 42 41.20 +01 27 53.3                      620
     J99L28N  C1999 06 17.56821 18 44 04.66 +01 20 50.5          16.4 R      426
     J99L28N  C1999 06 17.57074 18 44 05.04 +01 20 48.3          16.6 R      426
     J99L28N  C1999 06 17.57319 18 44 05.36 +01 20 46.3          16.6 R      426

Observer details:
104 San Marcello Pistoiese.  Observers L. Tesi, A. Boattini, M. Tombelli.
    Measurers G. Forti, L. Tesi, A. Boattini, M. Tombelli.  0.40-m f/5
    reflector + CCD.
118 Modra.  Observers L. Kornos, J. Toth.  0.6-m f/5.5 reflector + CCD.
120 Visnjan.  Observers K. Korlevic, V. Jelic.  Measurer K. Korlevic.  0.41-m
    f/4.3 reflector + CCD.
426 Woomera.  Observer F. B. Zoltowski.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.
611 Starkenburg.  Observers R. Stoss.  0.45-m f/4.4 reflector + CCD.
620 Observatorio Astronomico de Mallorca.  Observers A. Lopez, R. Pacheco,
    A. Garcia, J. Rodriguez.  Measurers A. Lopez, R. Pacheco, J. Rodriguez,
    S. Sanchez.  0.30-m f/3.3 Schmidt-Cassegrain + CCD, 0.36-m f/6.0
    Schmidt-Cassegrain + CCD.
696 Whipple Observatory, Mt. Hopkins.  Observer O. Naranjo.  1.2-m reflector
    + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, M. Elowitz.  Measurers J. Stuart, H. Viggh, R. Sayer.  1.0-m
    f/2.15 reflector + CCD.

Orbital elements:
1999 LN28
Epoch 1999 June 11.0 TT = JDT 2451340.5                 Williams
M 346.32419              (2000.0)            P               Q
n   0.31940343     Peri.  186.52539     +0.53254109     +0.83426973
a   2.1195467      Node   115.73960     -0.76921799     +0.54743250
e   0.4606292      Incl.    9.12206     -0.35313407     +0.06566342
P   3.09           H   18.8           G   0.15
From 47 observations 1999 June 12-17.

Ephemeris:
1999 LN28                a,e,i = 2.12, 0.46, 9                   q = 1.1432
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1999 06 11    18 29.33   +02 26.6    0.246    1.233   148.7    25.3    17.4
1999 06 16    18 40.29   +01 41.1    0.222    1.214   150.5    24.3    17.1
1999 06 21    18 52.93   +00 23.0    0.200    1.197   152.5    23.0    16.8
1999 06 26    19 07.74   -01 34.7    0.180    1.182   155.0    21.3    16.5
1999 07 01    19 25.20   -04 18.4    0.164    1.170   158.0    19.0    16.2
1999 07 06    19 45.70   -07 51.7    0.150    1.160   161.3    16.3    15.9
1999 07 11    20 09.41   -12 12.0    0.140    1.152   164.4    13.7    15.6
1999 07 16    20 36.13   -17 05.6    0.133    1.146   166.0    12.4    15.5
1999 07 21    21 05.14   -22 07.1    0.132    1.144   164.7    13.6    15.5
1999 07 26    21 35.04   -26 46.6    0.134    1.144   161.2    16.6    15.6
1999 07 31    22 04.02   -30 40.9    0.140    1.146   157.2    20.1    15.8
1999 08 05    22 30.40   -33 40.7    0.150    1.151   153.6    23.1    16.1
1999 08 10    22 53.00   -35 47.7    0.163    1.158   150.8    25.3    16.3
1999 08 15    23 11.43   -37 09.4    0.177    1.168   148.9    26.6    16.6
1999 08 20    23 25.83   -37 54.6    0.194    1.181   147.7    27.3    16.8
1999 08 25    23 36.67   -38 10.9    0.213    1.195   147.1    27.4    17.1
1999 08 30    23 44.51   -38 04.5    0.233    1.212   146.9    27.1    17.3
1999 09 04    23 49.92   -37 39.5    0.255    1.230   146.9    26.6    17.5
1999 09 09    23 53.49   -36 58.8    0.279    1.250   146.9    26.1    17.7
1999 09 14    23 55.77   -36 04.3    0.305    1.272   146.9    25.6    17.9
1999 09 19    23 57.26   -34 57.9    0.333    1.295   146.6    25.3    18.1
1999 09 24    23 58.32   -33 41.9    0.363    1.320   146.1    25.1    18.4
1999 09 29    23 59.24   -32 18.0    0.395    1.345   145.2    25.1    18.6
1999 10 04    00 00.22   -30 47.9    0.430    1.372   144.0    25.4    18.8
1999 10 09    00 01.42   -29 13.2    0.468    1.400   142.4    25.8    19.1
1999 10 14    00 02.97   -27 35.0    0.509    1.428   140.5    26.4    19.3
1999 10 19    00 04.94   -25 54.6    0.553    1.457   138.4    27.0    19.5
1999 10 24    00 07.37   -24 13.3    0.600    1.486   136.0    27.7    19.8
1999 10 29    00 10.24   -22 31.9    0.649    1.516   133.5    28.4    20.0
1999 11 03    00 13.55   -20 51.1    0.702    1.546   130.9    29.0    20.2
1999 11 08    00 17.28   -19 11.3    0.758    1.576   128.2    29.6    20.5
1999 11 13    00 21.42   -17 32.9    0.816    1.606   125.4    30.2    20.7
1999 11 18    00 25.95   -15 56.2    0.878    1.637   122.5    30.6    20.9
1999 11 23    00 30.83   -14 21.3    0.942    1.668   119.6    31.0    21.1
1999 11 28    00 36.03   -12 48.6    1.008    1.698   116.7    31.3    21.3
1999 12 03    00 41.51   -11 18.0    1.077    1.729   113.8    31.4    21.5
1999 12 08    00 47.26   -09 49.5    1.149    1.760   110.8    31.5    21.7
1999 12 13    00 53.27   -08 23.1    1.222    1.790   107.9    31.6    21.8
1999 12 18    00 59.50   -06 58.8    1.298    1.820   105.0    31.5    22.0

Gareth V. Williams           (C) Copyright 1999 MPC           M.P.E.C. 1999-M04

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