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Occultation Observation (Status: published)
Occultation Date : 2025-08-03 Star Designation : UCAC4 553-008379 Object Designation : (3866) Langley Observation Result : O+ Observer(s) : Stefano Sposetti Start Observation UT1 : 02:24:00 Disappearance UT2 : 02:26:10.465 +/- 0.048 Reappearance UT3 : 02:26:11.761 +/- 0.048 End Observation UT4 : 02:28:00 Duration [sec] : 1.30 Site Name : Gnosca Country Code : CH Observation Method : VID Time Source : GPS Instrument/Optics : M420 Record last modified : 2025-08-04 09:30:18 Source / Reference : SODIS (account required) Observer Comments : magDrop report: percentDrop: 93.4 magDrop: 2.944 +/- 0.736 (0.95 ci). Predicted mag drop: 3.7 (V); 3.4 (R)

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