The host galaxy is irregular one, so the nucleus of the host galaxy is uncertain.
T is close to a nebular in the host.
The spectroscopy shows that SN 1998T is of type Ib, probably near the maximum. They are unfiltered CCD magnitudes. On the same IAUC, a new specrtoscopy of SN 1998S is also reported by UCB group. They comment that it resembles to the type II-n event SN 1997eg, and SN 1998S may have a dence circumstellar gas. It is probable that this SN will be brighten in radio or X-ray.