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    PR # 31523                                                                   
     The 10 youngest pulsars of the most recent radio catalog are associat       
     ed with a SNR of comparable age and distance. Since many associations       
      have been proposed very recently, their coverage in X-ray is missing       
     . Seven of the ten associations are already in the ASCA target list;        
     here we propose to complete the sample and observe,  with pointing of       
      40000 sec each, the three remaining associations,  namely: G308.8-01       
     /PSR1338-62, G5.4-1.2/PSR1757-24, and W30/PSR1800-21.   The X-ray dat       
     a are expected to yield precious information on the  pulsar as well a       
     s on the SNR emission mechanisms.  Moreover, the interactions between       
      the young pulsars and the remnants could be investigated. Because of       
      this, we give the highest priority to the observation of PSR1757-24/       
    G5.4-1.2.                                                                    
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