All the messages are like the following example, reporting time and position relative to when tracking started:
0h20m 90%: 9.8km 357deg 235ft, N52 10.415N E0 1.229 (at 0h19m, accuracy 8m), http://maps.google.com/maps?q=52.17360,0.02049
Here, the tracker was started (and subsequently first moved) 20 minutes ago, has 90% battery, and we are now 9.8km from that point at a bearing of 357 degrees. We are at 235 feet at the given latitude and longitude (decimal minutes) which was determined 19 minutes after starting and to an accuracy of 8m. Clicking on the link on a smartphone will take you to Google Maps and show your position.
The different types of text messages sent are as follows: