Sentinel 1A Chirp parameters

Hi Altruists
I am trying to simulate sentinel 1A chirp for IW mode. From extensive googling I know the bandwidth (BW) of the signal=56.5 MHz. Would anyone of you help me finding the pulse duration (T) or chirp rate (k) for this particular IW mode that would have been great.

Regards
Saimoom

Sorry my friend, I do not know what is chrip but how did you find the bandwidth (BW) of Sentinel1A signal?