Noon Summary Log
| Day: | 423 |
| Date: | 21st July 1987 |
| Latitude: | 35° 28.8′ S |
| Longitude: | 8° 32.6′ E |
| Water Temperature: | 16.3°C |
| Wind @ Noon: | 25 WNW |
| Max Wind /24 hours: | 30 WNW |
| Min Wind /24 hours: | 25 WNW |
| Cloud Cover | 8/8 |
| Cabin Temperature: | 19°C |
| Outside Temperature: | 16.8°C |
| Barometer: | 1020 |
Source: CUL00045/11