Noon Summary Log
| Day: | 406 |
| Date: | 4th July 1987 |
| Latitude: | 26° 58.6′ S |
| Longitude: | 23° 6′ W |
| Water Temperature: | 22.6°C |
| Wind @ Noon: | 8 SE |
| Max Wind /24 hours: | 8 SE |
| Min Wind /24 hours: | CALM |
| Cloud Cover | 3/8 |
| Cabin Temperature: | 24°C |
| Outside Temperature: | 24.8°C |
| Barometer: | 1020 |
Source: CUL00045/11