[1] Observations of the spectrum made with the SOAR telescope showed this to be a type Ic supernova, with the progenitor being a massive star that had its outer envelope stripped.

[2] Models of the event give an initial (zero age main sequence) estimated mass of 9.5±1.0 M☉[4] or 13 M☉[1] for the progenitor.

It was a member of a binary star system and lost its outer envelope of hydrogen and helium due to interaction with its companion.

Based on this data, the shock wave from the explosion advanced through the surrounding interstellar matter with a velocity of 3−4×104 km/s.

In order to produce the observed emission, the progenitor star underwent mass loss at an average rate of 1.4×10−4 M☉·yr−1 at a typical wind velocity of ~1,000 km/s.