Apollo11 – Residency
51st sighting in Chatham Strait
Apollo11 @18130
Jul 23 – Aug 24, 2026 · Chatham Strait
Chatham Strait, Old Faithful
Late summer herring, this green water, folks watching me eat well.
109 m
Deepest dive
3:57
Longest dive
55
Dives
- Sightings
- 2
- Days between first and last sighting
- 32
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jul 23, 2026 | 23 m | 13.2°C | 21 m |
| Aug 24, 2026 | 138 m | 14.3°C | 109 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
109 m
Deepest dive
3:57
Longest dive
55
Dives
23 m
Avg dive depth
2
Sightings
32
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (138 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 24, 2026
measured- Seafloor depth
- 138 m
- Sea-surface temperature
- 14.3°C
- Distance from shore
- 1.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 23 m – 138 m
- Sea-surface temperature
- 13.2°C – 14.3°C
- Distance from shore
- 1.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.