| Event |
| Date | 2025-03-17 |
| Asteroid | (257389) 2009 SY155 |
| Star | HIP 48168 |
| Asteroid magnitude | 20.46m |
| Star magnitude | 7.41m |
| Combined magnitude | 7.41m |
| Expected drop | 13.05m |
| Expected time | 22:35:08 UT ± 8.15 s |
| Expected duration | 0.59 s |
| 1-σ path width error | 7.75 |
| Star RUWE | 0.90 |
| 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 | 22:34:48 UT |
| End observation | 22:35:28 UT |
| Technical data |
| Telescope | Newtonian 25/100 [cm] |
| Camera | DVTI |
| Exposure | 0.02 s |
| Observation method | Analogue & digital video |
| Time source | GPS |
| Signal noise ratio | |
| Wind | 0 B |
| Temperature | -3°C |
| Transparency | Clear |
| Seeing | Steady |
| Additional information |
| Comment | |
| Annotations | class: Trojan |
| SODIS | View report (requires account) |
| OWC | View more details |
| Last modified | 2025-03-18 08:30:48 |
