Here are plots from the official Incident report
Glide data from the moment the plane became a glider until "landing"
Distance and Speed vs Time
Speed, Glide Ratio (10x), and Vertical Rate (fpm)
I'm surprised they were able to get an initial glide ratio of 24 which is very high !! I was expecting 17 or less.
Note: The distance and speed is obtained from radar data; in other words it's the radial distance to the radar.