SG178 completed dive 4 at 01/12/10 21:01 to 183 m in 39 minutes, covering 0.2 km over ground. 0 errors, 0 retries. Next call due 01 Dec 21:41. Battery remaining 81.4% (high)/85.2% (low).

SG179 completed dive 4 at 01/12/10 21:29 to 184 m in 42 minutes, covering 0.6 km over ground. 0 errors, 0 retries. Next call due 01 Dec 22:11. Battery remaining 90.5% (high)/92.7% (low).