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  • MPEC 1998-E05 : 1997 RL13

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    M.P.E.C. 1998-E05                                Issued 1998 Mar. 2, 21:59 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
    
                                       1997 RL13
    
    Observations:
         J97R13L* C1997 09 05.25799 00 09 37.34 +06 03 40.0                      675
         J97R13L  C1997 09 05.40772 00 09 36.73 +06 03 36.3                      675
         J97R13L  C1997 09 06.30822 00 09 33.14 +06 03 16.1          25.8 R      675
         J97R13L  C1997 09 06.39352 00 09 32.81 +06 03 14.3                      675
    
    Observer details:
    675 Palomar Mountain.  Observers B. Gladman, P. Nicholson, J. A. Burns.
        Measurers B. Gladman, J. J. Kavelaars.  5-m Hale reflector + CCD.
    
    Orbital elements:
    1997 RL13
    Assumed circular orbit
    Epoch 1997 Aug. 20.0 TT = JDT 2450680.5                 Marsden
                             (2000.0)            P               Q
    n   0.00331845  Arg.lat.   51.69205     +0.99438191     -0.07593162
    a  44.5156285      Node   312.53093     +0.03388052     +0.88838370
    e   0.0000000      Incl.    5.74373     +0.10028321     +0.45277897
    P 297              H    9.5           G   0.15
    From 4 observations 1997 Sept. 5-6.
    
         This very faint object (R = 25.8 +/- 0.3) was found as the only
    transneptunian candidate in the Hale Sept. 6 data when they were searched
    for orbital inclinations up to 30 deg (i.e., for objects near opposition,
    on the ecliptic and at either node) and for angular rates spanning 2.3-4.3
    arcsec/hr (which spans all low-e orbits having 50 > a > 30 AU).  A check
    of the Sept. 5 data showed the object to be there, and it moves along in
    recombinations of subsets of the data as expected.
    
    Brian G. Marsden             (C) Copyright 1998 MPC           M.P.E.C. 1998-E05
    

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    MPEC number:

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