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Minor Planet Center

MPEC 1998-X13 : 1998 WW24

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M.P.E.C. 1998-X13                                Issued 1998 Dec. 4, 21:45 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 WW24

Observations:
     J98W24W* C1998 11 18.14057 03 05 15.15 +18 38 37.6          22.3 R      695
     J98W24W  C1998 11 18.20979 03 05 14.70 +18 38 35.0                      695
     J98W24W  C1998 11 18.39543 03 05 13.50 +18 38 29.4                      695
     J98W24W  C1998 11 26.34544 03 04 24.05 +18 34 18.1          22.5 R      695
     J98W24W  C1998 11 26.44358 03 04 23.47 +18 34 15.0                      695
     J98W24W  C1998 11 27.33580 03 04 18.03 +18 33 47.2                      695

Observer details:
695 Kitt Peak.  Observers R. L. Millis, M. W. Buie, R. M. Wagner, J. L. Elliot,
    D. W. Willmarth, D. L. Harmer, G. Rosenstein, W. K. Hughes.  Measurers
    M. W. Buie, R. L. Millis, J. L. Elliot.  3.8-m reflector + CCD, 3.6-m
    WIYN telescope + CCD.

Orbital elements:
1998 WW24
The following assumed perihelic 2:3 Neptune-resonance orbital elements
keep the object more than 15 AU from Neptune over a 14 000-year period
Epoch 1998 Nov. 23.0 TT = JDT 2451140.5                 Marsden
M   0.01996              (2000.0)            P               Q
n   0.00396484     Peri.  175.22488     +0.65177644     -0.73284770
a  39.5353824      Node   233.94878     +0.68758745     +0.67962324
e   0.2088185      Incl.   13.97488     +0.32001715     +0.03234969
P 249              H    7.8           G   0.15
From 6 observations 1998 Nov. 18-27.

Ephemeris:
1998 WW24                a,e,i = 39.54, 0.21, 14                 q = 31.280
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
1998 12 03    03 03.74   +18 30.9   30.363   31.280   158.1     0.7    22.8
1998 12 13    03 02.83   +18 26.0   30.443   31.280   147.7     1.0    22.8
1998 12 23    03 02.06   +18 21.6   30.549   31.280   137.3     1.2    22.9
1999 01 02    03 01.44   +18 17.8   30.678   31.280   127.0     1.4    22.9
1999 01 12    03 01.02   +18 14.8   30.826   31.280   116.7     1.6    22.9
1999 01 22    03 00.80   +18 12.6   30.987   31.280   106.5     1.7    22.9
1999 02 01    03 00.81   +18 11.3   31.157   31.280    96.3     1.8    23.0
1999 02 11    03 01.03   +18 11.0   31.330   31.280    86.2     1.8    23.0
1999 02 21    03 01.48   +18 11.5   31.501   31.280    76.2     1.8    23.0
1999 03 03    03 02.14   +18 13.0   31.665   31.280    66.3     1.7    23.0

Brian G. Marsden             (C) Copyright 1998 MPC           M.P.E.C. 1998-X13

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MPEC number:

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