All,
here are the links to the Google Maps and (more interestingly) Google Earth tracks for this flight from OpenATC.com. Make sure you select the "Black Box" Mode for the Google Earth view:
Google Earth (requires Google Earth installed):
openATC Google Earth
Google Maps:
openATC Google Maps
Looks like the last three transmissions are hinting at the pilot trading speed vs. altitude until, at 83kts ground speed, gravity won and the vertical rate was up to more than 4000fpm (20m/s). Quite an impact!
Important notes for those not familiar with ADS-B:
- The speed is GPS derived, i.e. ground speed, NOT IAS!
- The altitude as well as vertical speed are pressure derived, NOT GPS! However, the altitudes are always expressed in flight levels, i.e. in reference to 1013 hPa pressure, standard sea level pressure. Hence you see the -200ft.