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   82053
   We propose a deep ASCA observation of the newly discovered 7-s X-ray
   pulsar, PSR J1845-0258, to determine its timing and spectral
   parameters. The pulsar lies within a newly discovered radio supernova
   remnant and is likely the latest addition to the rare class of
   anomalous X-ray pulsars (AXPs), but has recently been found to be in a
   low flux state. The proposed deep observation is necessary to yield a
   spin and flux measurement, in order to allow a search for an possible
   enormous period derivative, expected for an AXP, to constrain the
   pulsar's emission properties and mechanisms.
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