There was a break at 63 minutes, so it’s hard to tell. I wouldn’t use the whole duration as an AeT test.
If we assume a 13m warm-up and 25m test halves, then there wasn’t any drift. Provided it was an AeT intensity (and not AnT), you could do another faster test.
However, for the best results, be sure to do a full 15m warm-up and 60m test.