| Flag | City | Country | School | Latitude (°) +N/-S | Longitude (°) +E/-W |
 | Rio de Janeiro | Brazil | Centro Educacional Nosso Mundo | -22.89 | -43.317 |
| Date | Gnomon height [cm] | Shadow length [cm] | Angle (°) |
| 10/07/2023 | 37.0 | -32.0 | -40.9 |
| 11/07/2023 | 37.0 | -32.0 | -40.9 |
| 12/07/2023 | 37.0 | -32.0 | -40.9 |
| 13/07/2023 | 37.0 | -32.0 | -40.9 |
| 14/07/2023 | 37.0 | -32.0 | -40.9 |
| 21/07/2023 | 37.0 | -31.0 | -40.0 |
| 24/07/2023 | 37.0 | -31.0 | -40.0 |
| 25/07/2023 | 37.0 | -31.0 | -40.0 |
| 27/07/2023 | 37.0 | -30.0 | -39.0 |
| 28/07/2023 | 37.0 | -30.0 | -39.0 |
| 31/07/2023 | 37.0 | -30.0 | -39.0 |
