The temperature of VFTS 1014 (O3 V + mid/late O) is based on the lines N iv λ4058, N v λ4604/4620, and on the He i λ4471 line. Unfortunately, the resolution and S/N of the HST observation is very low and Ṁ is based on N iv λ4058 instead of He ii λ4686. The log g is at least ≳4 and the luminosity class is V, which suggests a young age and a He-abundance of ≈25%. (Second panel: HST/FOS, third panel: ARGUS).