| Event | |
| Date | 2023-01-07 |
| Asteroid | (1404) Ajax |
| Star | UCAC4 654-015243 |
| Asteroid magnitude | 16.42m |
| Star magnitude | 14.88m |
| Combined magnitude | 14.64m |
| Expected drop | 1.77m |
| Expected time | 19:45:30 UT ± 7.67 s |
| Expected duration | 8.37 s |
| 1-σ path width error | 0.75 |
| Star RUWE | 1.05 |
| Station | |
| Observer | Marcin Filipek |
| Latitude | 50 12 43.9 |
| Longitude | 19 45 02.8 |
| Altitude | 450 m |
| Geodetic system | WGS84 |
| Nearest city | Krakow |
| Result | |
| Overal result | Positive |
| Start observation | 18:44:30 UT |
| End observation | 18:46:30 UT |
| Disappearance | 18:45:28.00 UT ± 0.5 s |
| Reappearance | 18:45:30.30 UT ± 0.5 s |
| Duration | 2.3 s |
| Technical data | |
| Telescope | Newtonian 40/180 [cm] |
| Camera | ZWO ASI 178MC |
| Exposure | 0.9 s |
| Observation method | Analogue & digital video |
| Time source | NTP |
| Signal noise ratio | 6.5 |
| Wind | 1 B |
| Temperature | 4°C |
| Transparency | Clear |
| Seeing | Steady |
| Additional information | |
| Comment | Focal reducer used (x 0.5). Total exposure 3 x 0.3 = 0.9 s (digital stacking). |
| SODIS | View report (requires account) |
| OWC | View more details |
| Last modified | 2023-02-03 21:30:00 |
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