• Processing (Info)

    • MPEC 1999-B25 : 1998 WX31

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    M.P.E.C. 1999-B25                                Issued 1999 Jan. 28, 23:22 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

                                   1998 WX31

Observations:
     J98W31X* C1998 11 18.41641 04 24 39.16 +23 11 38.2          22.1 R      695
     J98W31X  C1998 11 18.48756 04 24 38.78 +23 11 37.3                      695
     J98W31X  C1999 01 15.18020 04 19 59.34 +23 00 51.2          22.2 R      695
     J98W31X  C1999 01 15.28043 04 19 59.00 +23 00 50.4                      695

Observer details:
695 Kitt Peak.  Observers R. L. Millis, M. W. Buie, R. M. Wagner, J. L.
    Elliot, D. W. Willmarth, P. S. Smith, D. L. Harmer, A. Saha.  Measurers
    M. W. Buie, R. L. Millis, J. L. Elliot.  4-m reflector + CCD, 3.6-m
    WIYN Telescope + CCD.

Orbital elements:
1998 WX31
Eccentricity assumed
Epoch 1998 Dec. 13.0 TT = JDT 2451160.5                 Marsden
M   0.08913              (2000.0)            P               Q
n   0.00359189     Peri.   29.29492     +0.37623973     -0.92591577
a  42.2266864      Node    38.63137     +0.83927533     +0.32526084
e   0.0284365      Incl.    3.07786     +0.39250552     +0.19205564
P 274              H    6.3           G   0.15
From 4 observations 1998 Nov. 18-1999 Jan. 15.

Ephemeris:
1998 WX31                a,e,i = 42.23, 0.03, 3                  q = 41.026
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1999 01 22    04 19.65   +22 59.9   40.447   41.026   125.5     1.1    22.6
1999 02 01    04 19.27   +22 58.8   40.596   41.026   115.2     1.2    22.6
1999 02 11    04 19.07   +22 58.0   40.758   41.026   105.1     1.3    22.6
1999 02 21    04 19.04   +22 57.7   40.929   41.026    95.0     1.4    22.6
1999 03 03    04 19.20   +22 57.8   41.102   41.026    84.9     1.4    22.6
1999 03 13    04 19.53   +22 58.3   41.272   41.026    75.0     1.3    22.6
1999 03 23    04 20.02   +22 59.2   41.434   41.026    65.2     1.3    22.6
1999 04 02    04 20.68   +23 00.5   41.585   41.026    55.4     1.1    22.6
1999 04 12    04 21.47   +23 02.2   41.718   41.026    45.8     1.0    22.6
1999 04 22    04 22.38   +23 04.1   41.832   41.026    36.2     0.8    22.6

Brian G. Marsden             (C) Copyright 1999 MPC           M.P.E.C. 1999-B25

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