| Event | |
| Date | 2023-02-27 |
| Asteroid | (7812) Billward |
| Star | UCAC4 354-060701 |
| Asteroid magnitude | 17.03m |
| Star magnitude | 14.11m / 14.07m / 14.07m (¹) |
| Combined magnitude | 14.04m / 14.00m / 14.00m (¹) |
| Expected drop | 2.99m / 2.50m / 2.50m (¹) |
| Expected time | 22:13:44 UT ± 3.51 s |
| Expected duration | 1.53 s |
| 1-σ path width error | 1.49 |
| Star RUWE | 1.00 |
| Station | |
| Observer | Anna Marciniak |
| Latitude | 052 36 14.0 |
| Longitude | 016 02 33.4 |
| Altitude | 65 m |
| Geodetic system | WGS84 |
| Nearest city | Sierakow |
| Result | |
| Overal result | Positive |
| Start observation | 22:12:45 UT |
| End observation | 22:14:54 UT |
| Disappearance | 22:13:41.500 UT ± 0.30 s |
| Reappearance | 22:13:43.500 UT ± 0.40 s |
| Duration | 2.00 s |
| Plotcode | include observation |
| Technical data | |
| Telescope | SCT 35/185 [cm] |
| Camera | Andor Zyla 5.5 with sCMOS sensor |
| Exposure | 0.50 s |
| Observation method | Sequential images |
| Time source | GPS |
| Signal noise ratio | 3.0 |
| Wind | 2 B |
| Temperature | -2°C |
| Transparency | Clear |
| Seeing | Steady |
| Additional information | |
| Comment | Probability: 25%. |
| SODIS | View report (requires account) |
| OWC | View more details |
| Last modified | 2023-03-04 02:39:33 |
(¹) Pobliska gwiazda wpływa na obserwację. Tabela zawiera wartość oryginalną oraz dla apertur odpowiednio 4 i 8 sekund łuku
Załączniki
