| Event |
| Date | 2024-08-16 |
| Asteroid | (28240) 1999 AP21 |
| Star | UCAC4 408-141709 |
| Asteroid magnitude | 16.96m |
| Star magnitude | 13.53m |
| Combined magnitude | 13.48m |
| Expected drop | 3.48m |
| Expected time | 20:20:31 UT ± 0.69 s |
| Expected duration | 0.82 s |
| 1-σ path width error | 0.26 |
| Star RUWE | 0.95 |
| Station |
| Observer | Marcin Filipek |
| Latitude | 50 12 43.8 |
| Longitude | 19 45 02.8 |
| Altitude | 450 m |
| Geodetic system | WGS84 |
| Nearest city | Jerzmanowice |
| Result |
| Overal result | Negative |
| Start observation | 20:20:16 UT |
| End observation | 20:20:45 UT |
| Technical data |
| Telescope | Newtonian 25/100 [cm] |
| Camera | DVTI |
| Exposure | 0.15 s |
| Observation method | Analogue & digital video |
| Time source | GPS |
| Signal noise ratio | |
| Wind | 0 B |
| Temperature | 20°C |
| Transparency | Clear |
| Seeing | Slight flickering |
| Additional information |
| Comment | |
| SODIS | View report (requires account) |
| OWC | View more details |
| Last modified | 2024-08-18 22:09:09 |
