The RR Lyrae variable TT
Scuti was studied using photographic photometry. The O-C data show a possible
downwards curve, which would indicate a decreasing period, but the results are
not conclusive. New linear elements are: JD(max) = 2439384.915 + 0.45293855 E.
A limit for the maximum rate of change of the period is -0.03 +/- 0.04 cycles
per million years.