• Processing (Info)

    • MPEC 1999-Y12 : 1999 XM141

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    M.P.E.C. 1999-Y12                                Issued 1999 Dec. 20, 20:37 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

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

                                  1999 XM141

Observations:
     J99XE1M* C1999 12 13.42842 11 15 49.15 +44 08 16.8          18.0        704
     J99XE1M  C1999 12 13.44303 11 16 03.22 +44 09 08.1          18.0        704
     J99XE1M  C1999 12 13.45769 11 16 17.21 +44 09 59.0          18.4        704
     J99XE1M  C1999 12 13.47239 11 16 31.30 +44 10 48.9          18.2        704
     J99XE1M  C1999 12 13.48707 11 16 45.31 +44 11 39.9          18.2        704
     J99XE1M  C1999 12 14.43725 11 32 32.88 +45 01 25.2          18.1        704
     J99XE1M  C1999 12 14.45244 11 32 47.99 +45 02 11.1          18.6        704
     J99XE1M  C1999 12 14.46773 11 33 03.26 +45 02 56.9          18.7        704
     J99XE1M  C1999 12 14.48321 11 33 18.59 +45 03 42.1          18.3        704
     J99XE1M  C1999 12 14.49880 11 33 34.23 +45 04 28.5          18.4        704
     J99XE1M  C1999 12 16.44830 12 07 31.01 +46 20 39.3          18.3        704
     J99XE1M  C1999 12 16.47776 12 08 01.93 +46 21 34.3          18.8        704
     J99XE1M  C1999 12 16.49237 12 08 17.12 +46 22 01.9          18.8        704
     J99XE1M  C1999 12 17.13395 12 19 44.11 +46 38 32.0          17.9 R      046
     J99XE1M  C1999 12 17.13622 12 19 46.42 +46 38 34.7                      046
     J99XE1M  C1999 12 17.13947 12 19 49.90 +46 38 37.7          18.4 R      046
     J99XE1M  C1999 12 17.14036 12 19 50.94 +46 38 40.7                      046
     J99XE1M  C1999 12 17.14133 12 19 51.99 +46 38 42.1          18.1 R      046
     J99XE1M  C1999 12 17.14222 12 19 53.00 +46 38 43.2                      046
     J99XE1M  C1999 12 17.14356 12 19 54.37 +46 38 45.6          18.0 R      046
     J99XE1M  C1999 12 17.17953 12 20 32.16 +46 39 36.7                      118
     J99XE1M  C1999 12 17.18213 12 20 34.94 +46 39 40.1          18.2 R      118
     J99XE1M  C1999 12 17.18392 12 20 36.88 +46 39 42.5          17.8 R      118
     J99XE1M  C1999 12 17.43262 12 25 06.20 +46 44 58.7          18.7        704
     J99XE1M  C1999 12 17.44716 12 25 21.57 +46 45 17.1          19.0        704
     J99XE1M  C1999 12 17.46215 12 25 37.53 +46 45 36.1          18.8        704
     J99XE1M  C1999 12 17.47670 12 25 52.87 +46 45 55.1          18.5        704
     J99XE1M  C1999 12 17.49151 12 26 08.55 +46 46 13.4          18.3        704
     J99XE1M  C1999 12 19.42506 13 00 41.60 +47 03 44.8          17.8        704
     J99XE1M  C1999 12 19.44075 13 00 57.99 +47 03 44.8          18.5        704
     J99XE1M  C1999 12 19.45624 13 01 14.30 +47 03 47.1          18.4        704
     J99XE1M  C1999 12 19.47167 13 01 30.47 +47 03 47.8          19.0        704
     J99XE1M  C1999 12 19.48721 13 01 46.59 +47 03 48.7          18.8        704

Observer details:
046 Klet.  Observers M. Tichy, Z. Moravec.  0.57-m f/5.2 reflector + CCD.
118 Modra.  Observers L. Kornos, S. Gajdos.  0.6-m f/5.5 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, M. Elowitz, R. Huber.  Measurers J. Stuart, H. Viggh,
    R. Sayer, J. B. Evans.  1.0-m f/2.15 reflector + CCD.

Orbital elements:
1999 XM141                                                           PHA 0.024D
Epoch 1999 Dec. 8.0 TT = JDT 2451520.5                  Williams
M 309.50251              (2000.0)            P               Q
n   0.70816127     Peri.  105.23483     -0.93322357     -0.04479252
a   1.2465641      Node    73.23500     -0.13675319     -0.87323814
e   0.3741084      Incl.   21.85866     +0.33225343     -0.48523064
P   1.39           H   19.6           G   0.15
From 33 observations 1999 Dec. 13-19.

Ephemeris:
1999 XM141               a,e,i = 1.25, 0.37, 22                  q = 0.7802
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1999 12 18    12 35.22   +46 54.5    0.197    1.031    98.2    70.9    18.6
1999 12 23    14 00.52   +46 03.4    0.207    1.000    88.5    79.5    19.0
1999 12 28    15 07.95   +42 23.2    0.227    0.970    79.9    86.8    19.4
2000 01 02    15 55.95   +37 45.2    0.255    0.940    72.9    92.1    19.8
2000 01 07    16 30.02   +33 09.7    0.287    0.912    67.4    95.7    20.1
2000 01 12    16 55.23   +28 54.7    0.322    0.886    63.1    98.0    20.4
2000 01 17    17 14.97   +25 00.5    0.359    0.861    59.8    99.1    20.6
2000 01 22    17 31.39   +21 22.7    0.397    0.839    57.3    99.2    20.8
2000 01 27    17 45.88   +17 57.1    0.436    0.820    55.4    98.7    20.9

Gareth V. Williams           (C) Copyright 1999 MPC           M.P.E.C. 1999-Y12

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