  Hard xray data from the RXTE observatory (HEXTE energy range 15 to 240 keV)
have been analyzed to obtain a phase coherent timing solution for the Crab
pulsar glitch of 15 July 2000. The results are: (1) step change in the rotation
frequency $\nu_0$ of the Crab pulsar at the epoch of the glitch is $\Delta
\nu_0 = (30 \pm 3) \times 10^{-9} \times \nu_0$, (2) step change in its time
derivative is $\Delta \dot \nu_0 = (4.8 \pm 0.6) \times 10^{-3} \times \dot
\nu_0$, and (3) the time scale of decay of the the step change is $\tau_d = 4.7
\pm 0.5$ days. The first two results are consistent with those obtained at
radio frequencies by the Jodrell Bank observatory. The last result has not been
quoted in the literature, but could be an underestimate due to lack of
observations very close to the glitch epoch. By comparing with the monthly
timing ephemeris published by the Jodrell group for the Crab pulsar, the time
delay between the main peaks of the hard xray and radio pulse profiles is
estimated to be $+411 \pm 167$ $\mu$sec. Although this number is not very
significant, it is consistent with the number derived for the 2 to 16 keV
energy range, using the PCA instrument of RXTE. The separation between the two
peaks of the integrated pulse profile of the Crab pulsar, and the ratio of
their intensities, both are statistically similar before and after the glitch.
The dead time corrected integrated photon flux within the integrated pulse
profile appears to decrease after the glitch, although this is not a
statistically strong result. This work achieves what can be considered to be
almost absolute timing analysis of the Crab pulsar hard xray data.
