WhaleNet

Satellite Data

47826
Risso's Dolphin

Riverhead Foundation

Sighting Data


Satellite Fixes

"Rocky" Data

47826 Date : 28.04.05 10:31:49 LC : B IQ : 00 Lat1 : 38.009N Lon1 : 72.718W
47826 Date : 28.04.05 18:34:09 LC : 2 IQ : 60 Lat1 : 37.905N Lon1 : 72.561W
47826 Date : 30.04.05 08:25:37 LC : B IQ : 00 Lat1 : 38.268N Lon1 : 72.651W
47826 Date : 30.04.05 19:52:28 LC : A IQ : 08 Lat1 : 38.339N Lon1 : 72.768W
47826 Date : 04.05.05 03:49:45 LC : A IQ : 08 Lat1 : 38.253N Lon1 : 73.874W
47826 Date : 04.05.05 13:47:15 LC : A IQ : 08 Lat1 : 38.071N Lon1 : 73.541W
47826 Date : 06.05.05 18:43:14 LC : 0 IQ : 40 Lat1 : 37.998N Lon1 : 73.008W
47826 Date : 08.05.05 21:05:23 LC : A IQ : 08 Lat1 : 38.501N Lon1 : 73.093W
47826 Date : 10.05.05 01:34:25 LC : 2 IQ : 60 Lat1 : 38.423N Lon1 : 73.384W
47826 Date : 12.05.05 01:20:27 LC : 3 IQ : 60 Lat1 : 38.222N Lon1 : 73.599W
47826 Date : 14.05.05 07:26:43 LC : 2 IQ : 60 Lat1 : 37.865N Lon1 : 73.918W
47826 Date : 16.05.05 02:36:19 LC : 2 IQ : 50 Lat1 : 37.647N Lon1 : 74.155W
47826 Date : 18.05.05 03:27:41 LC : 1 IQ : 50 Lat1 : 37.069N Lon1 : 74.516W
47826 Date : 20.05.05 04:23:21 LC : A IQ : 00 Lat1 : 37.097N Lon1 : 74.585W
47826 Date : 22.05.05 03:36:36 LC : B IQ : 00 Lat1 : 36.947N Lon1 : 74.592W
47826 Date : 24.05.05 11:57:43 LC : 2 IQ : 58 Lat1 : 35.989N Lon1 : 74.584W
47826 Date : 26.05.05 16:04:39 LC : A IQ : 08 Lat1 : 35.428N Lon1 : 74.292W
47826 Date : 28.05.05 02:58:52 LC : A IQ : 00 Lat1 : 34.962N Lon1 : 77.229W
47826 Date : 30.05.05 07:42:13 LC : B IQ : 00 Lat1 : 35.993N Lon1 : 72.670W
47826 Date : 01.06.05 03:09:17 LC : A IQ : 00 Lat1 : 36.774N Lon1 : 72.703W
47826 Date : 03.06.05 02:23:57 LC : 2 IQ : 50 Lat1 : 37.317N Lon1 : 72.691W
47826 Date : 03.06.05 06:54:46 LC : B IQ : 00 Lat1 : 37.358N Lon1 : 72.602W
47826 Date : 05.06.05 02:54:30 LC : Z IQ : 00 Lat1 : ??????? Lon1 : ????????
47826 Date : 07.06.05 07:49:10 LC : B IQ : 00 Lat1 : 38.549N Lon1 : 73.020W
47826 Date : 09.06.05 03:27:33 LC : 2 IQ : 50 Lat1 : 38.298N Lon1 : 73.273W
47826 Date : 11.06.05 07:03:34 LC : 1 IQ : 68 Lat1 : 38.186N Lon1 : 73.424W
47826 Date : 13.06.05 03:36:35 LC : B IQ : 00 Lat1 : 38.470N Lon1 : 73.115W
47826 Date : 19.06.05 13:57:25 LC : A IQ : 00 Lat1 : 39.473N Lon1 : 71.874W

TrackMap "47826"

Data Format key:
Date (dd.mm.yy): 22.08.98 23:06:55 Time (hr:min:sec)(in GMT), LC (fix quality)

LC just stands for Location Class. Location Classes of 0 and up are the best (derived from 4 or more messages)- a Class 0 is good to within between 1,000 and 5,000 meters. Classes 1,2,3- get consistently more accurate. The letter classes are given no estimate of error, but the A's are better than the B's etc. (Argos Accuracy Table) It appears that some of the letter class locations are pretty good (i.e. several fixes over a short period are quite similar), but then others vary wildly- especially the longitude.

> Lat1: 48.275N [latitude] Lon1: 69.232W [longitude]


Additional and more complete data is available in the WhaleNet listerv, data under 47822 files.


Analysis Tools

Sample Questions and Activities--

1. How far does this animal travel each day? (Average)
2. How far did it travel since its initial tagging?
3. Why do you think it is traveling in a particular direction?
4. Why do whales/porpoises/dolphins migrate?
5. What is the average rate of travel?
6. What other questions do you have?
7. How would you find your answers?
8. What other information would you need?


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