In this graph the acceleration and blue altitude lines are unfiltered while the velocity and green altitude are Kalman filtered.
This flight went pretty well. The only anomaly I see is a blip in the acceleration data at about 14 seconds. One possible explanation for this is that the motor ejection charge went off but was insufficient to break the shear pins. This resulted in all of the gas generated coming out the motor nozzle resulting in the forward acceleration. If that is the case then the 14 second (nominal) delay went off after only 12 seconds.
Here is the data in a somewhat more raw form:
AltAcc data file. (binary, 8K)