Abstract
We report further Chandra observations of the ultraluminous supersoft X-ray source in M101, currently in outburst (ATEL #305). Data taken on 2004 July 6 (for 28 ks) and 2004 July 8 (for 54 ks) show that the source is in high/supersoft state. Preliminary analysis shows that the energy spectrum of the first observation can be fit with an absorbed blackbody model (N_H=2.8e21 cm^-2, kT=105 eV) plus two absorption edges at 0.66 keV and 0.87 keV.