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   PR # 11002
    We propose a 40 ksec observation PSR J0437-4715, the nearest (d=100-
    150 pc)and radio-brightest millisecond pulsar known.  The pulsar is a
    canonical  example of a recycled pulsar in a 5.7-day orbit around a
    cool white dwarf star. With the third highest spin-down flux among
    the radio pulsars after the Crab and Vela, it is the most promising
    object to study the emission mechanism of the recycled pulsars.  PSR
    J0437-4715 was discovered in the Parkes Southern Hemisphere pulsar
    survey, and its pulsed X-ray emission has been found in the ROSAT
    data.  With the ASCA observations, we expect to determine the X-ray
    light curve and spectra with absolute phase with respect to the radio
    pulse.  We will also search for the X-ray nebula using both SIS and
   GIS to study the pulsar wind d
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