Transmission trouble

2015_02_05

Beverly is still way north and east of where we’d expect to see her. She’s only about 330 km from the Azores! Christie is just where we’d expect her—about 1,600 km from Trinidad, where she should be heading to nest in the next few months.

And then there is Asha. You can see that we haven’t had a good hit from her satellite tag since last week. We’re not getting any satellite locations from her tag, although the tag is still trying to communicate.

In order to get a location, the satellite must receive approximately four messages from the tag when it passes over. It takes that much information to verify where the tag is. Right now, it seems as though Asha’s tag is sending only one message at a time. We haven’t determined why quite yet, though we suspect the tag might have biofouling issues. Biofouling is when organisms like algae and barnacles colonize on the tag and impact its performance.

Although frustrating, this isn’t unusual. You may remember a similar situation with Jacquelyn and the remarkable story of Red Rockette!

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One thought on “Transmission trouble

  1. […] tag is transmitting again—not regularly, but enough to let us know where she is. We’ve had five good locations from her […]

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