I just created an UOV (S4UOV.UOV) for comet C/1999 S4 (LINEAR) showing ticks
and DATE LABELS
using my own ephemeris program . Ticks are 0h UT . The comet is now around
mag 8, and I expect the comet to reach a maximal magnitude around 4.0 a
month from now. So it should be a good target for the any binoculars and
perhaps for the naked eye.

Hartwig Luethen