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Occultation Observation (Status: published)
Occultation Date : 2025-01-19 Star Designation : UCAC4 472-043006 Object Designation : (20729) 1999 XS143 Observation Result : O+ Observer(s) : Joachim Siegert Start Observation UT1 : 02:04:16 Disappearance UT2 : 02:05:22.9 +/- 0.4 Reappearance UT3 : 02:05:23.6 +/- 0.4 End Observation UT4 : 02:06:15 Duration [sec] : 0.70 Site Name : Amberg Country Code : DE Observation Method : VID Time Source : GPS Instrument/Optics : M203 Record last modified : 2025-01-23 17:17:23 Source / Reference : SODIS (account required) Observer Comments : From visual inspection of the Tangra aperture clear single frame event - 2B test passed (6.47, probable 1.76). However, the frame after is missed (see DAT file), the next frame is at full light level. So AOTA measured a duration of 0.7 s, could also be only 0.5 s. (CW)

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