  EXO1745-248 is a transient neutron star low-mass X-ray binary located in the
globular cluster Terzan 5. It was in outburst in 2000 and displayed during one
Rossi X-ray Timing Explorer observation a highly coherent quasi-periodic
oscillation (QPO) at frequencies between 670 and 715 Hz. Applying a maximum
likelihood method to fit the X-ray power density spectrum, we show that the QPO
can be detected on segments as short as T=48 seconds. We find that its width is
consistent with being constant, while previous analysis based on longer segment
duration (200 s) found it variable. If the QPO frequency variations in
EXO1745-248 follows a random walk (i.e. the contribution of the drift to the
measured width increases like square root of T), we derive an intrinsic width
of about 2.3 Hz. This corresponds to an intrinsic quality factor of about
297+/-50 at 691 Hz. We also show that Q is consistent with being constant
between 2.5 and 25 keV.
  IGR J17480-2446 is another X-ray transient located in Terzan 5. It is a very
interesting object showing accretion powered pulsations and burst oscillations
at 11 Hz. We report on the properties of its kHz QPOs detected between October
18th and October 23rd, soon after the source had moved from the so-called Atoll
to the Z state. Its QPOs are typical of persistent Z sources; in the sense that
they have low Q factors (about 30) and low RMS amplitudes (about 5 %). The
highest frequency (at 870 Hz), if orbital, sets a lower limit on the inner disk
radius of about 18.5 km, and an upper limit to the dipole moment of the
magnetic field 5 x 10^26 G cm^3.
