| Date/time (local) | Occurrence | Latitude | Longitude | Notes |
|---|---|---|---|---|
| 04/28/21 05:16:16 | Detected | 41.0752 | -71.1846 | |
| 04/28/21 05:31:16 | Detected | 41.0737 | -71.1869 | |
| 04/28/21 06:01:16 | Possibly detected | 41.0706 | -71.1914 | |
| 04/28/21 22:01:16 | Detected | 41.0027 | -71.2278 | |
| 04/28/21 22:16:16 | Possibly detected | 41.0018 | -71.2266 | |
| 04/28/21 23:01:16 | Detected | 40.9991 | -71.2229 | Humpback- all upsweeps |
| Date/time (local) | Latitude | Longitude | Notes |
|---|---|---|---|
| 04/28/21 18:01:16 | 41.0101 | -71.2202 | Possible Hf humpback ds |
| 04/28/21 18:16:16 | 41.0081 | -71.2216 | Possible Hf humpback activity |
| 04/28/21 21:46:16 | 41.0036 | -71.2291 | Almost possible faint humpback P7 |
| 04/28/21 23:01:16 | 40.9991 | -71.2229 | Humpback- all upsweeps |