A 6 YEAR TIMING SOLUTION FOR PSR B1951+32

Six years of pulse time-of-arrival measurements have been collected fr om observations of the young, fast pulsar PSR B1951+32 in the CTB 80 s upernova remnant using the Jodrell Bank and Arecibo radio telescopes. The combined data allow for the determination of a phase connected sol ution between 1987 August 21 and 1993 September 21. This solution prov ides an accurate rotational ephemeris for high energy x-ray and gamma- ray observations of this source made during the six years of radio tim ing observations to an accuracy of better than one tenth of a pulse pe riod (4 ms). The pulsar has an activity parameter comparable with the value seen in the Crab pulsar.