Data Location data, seal, "Gray" (fwd)

From: mike williamson (
Date: Tue Jun 26 2001 - 21:50:54 EDT

Almost exactly one month after he was released, it appears that "Gray" has
hauled out. Over the past two days we have gotten signals from "Grays" tag
that indicate that he is on shore on a small set of ledges roughly 8-10
miles southeast of Grand Manan Island (Canada). This location is in the
same general area that he visited several weeks ago, however at that time
he stayed further to the east and in deep water. Signals from his tag
place him on a small ledge (named Yellow ledge), which is a part of the
Murr ledges. It appears that he has been out of the water long enough to
cause the tag to shut off. The tag is programmed to shut down once it is
out of the water for six hours, to save battery power when a seal hauls
out. Hopefully "Gray" will return to the water and we will see where he
heads from here.

If you look closely at the data, you will see that the "LC" or location
code increases (from "A" or "B" class to class 3...the highest accuracy
class) when "Gray" gets to shore, because of the large number of signals
sent, when he is hauled out.

The data:

27568 Date : 23.06.01 18:06:14 LC : 3 IQ : 60Lat1 : 44.546N Lon1 :
27568 Date : 23.06.01 20:26:47 LC : A IQ : 08Lat1 : 44.487N Lon1 :
27568 Date : 23.06.01 21:24:53 LC : B IQ : 00Lat1 : 44.460N Lon1 :
27568 Date : 24.06.01 06:29:12 LC : 1 IQ : 60Lat1 : 44.511N Lon1 :
27568 Date : 24.06.01 20:13:57 LC : A IQ : 00Lat1 : 44.451N Lon1 :
27568 Date : 25.06.01 06:18:05 LC : 3 IQ : 68Lat1 : 44.487N Lon1 :
27568 Date : 25.06.01 07:58:13 LC : 3 IQ : 68Lat1 : 44.486N Lon1 :


Greg Early
Edgerton Research Laboratory
New England Aquarium
Central Wharf
Boston, Mass 02110
617-973-6592 (phone)
617-723-9705 (FAX)

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