Zakrycie gwiazdy UCAC4 509-049627 przez asteroidę (2295) Matusovskij

Event
Date2024-05-12
Asteroid(2295) Matusovskij
StarUCAC4 509-049627
Asteroid magnitude17.77m
Star magnitude13.03m / 12.60m / 12.60m (¹)
Combined magnitude13.01m / 12.59m / 12.59m (¹)
Expected drop4.76m / 1.20m / 1.20m (¹)
Expected time20:04:48 UT ± 0.15 s
Expected duration1.54 s
1-σ path width error0.03
Star RUWE2.45
Station
ObserverAnna Marciniak, Paweł Białobłocki at al.
Latitude052 16 36.8
Longitude017 04 30.8
Altitude83 m
Geodetic systemWGS84
Nearest cityPoznan
Result
Overal resultPositive
Start observation20:02:52 UT
End observation20:06:42 UT
Disappearance20:04:41.410 UT ± 0.16 s
Reappearance20:04:43.880 UT ± 0.11 s
Duration2.47 s
Plotcodeinclude observation
Technical data
TelescopeNewtonian 40/180 [cm]
CameraAndor Zyla 5.5 camera with sCMOS sensor
Exposure0.20 s
Observation methodSequential images
Time sourceGPS
Signal noise ratio5
Wind3 B
Temperature15°C
TransparencyClear
SeeingStrong flickering
Additional information
CommentMuch shallower mag drop than predicted, even including the nearby 12.6 mag star (0.6 mag observed vs 1.2 mag).
Event 5 seconds earlier than predicted.
Occulted star RUWE = 2.45.
SODISView report (requires account)
OWCView more details
Last modified2024-06-01 13:46:29


(¹) Pobliska gwiazda wpływa na obserwację. Tabela zawiera wartość oryginalną oraz dla apertur odpowiednio 4 i 8 sekund łuku



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