| City | Country | School | Latitude (°) +N/-S | Longitude (°) +E/-W |
| Rio de Janeiro | Brazil | Instituto Superior de Educação | -22.915 | -43.217 |
| Date | Gnomon height [cm] | Shadow length [cm] | Angle (°) |
| 12/03/2025 | 18.0 | -6.5 | -19.9 |
| 13/03/2025 | 18.0 | -6.5 | -19.9 |
| 18/03/2025 | 18.0 | -6.5 | -19.9 |
| 19/03/2025 | 18.0 | -7.0 | -21.3 |
| 20/03/2025 | 18.0 | -7.0 | -21.3 |
| 21/03/2025 | 18.0 | -6.5 | -19.9 |