1 DATE : 11/MAR/2005 STAR : TYC 0799-01487-1 ASTEROID : (1315)BRONISLAWA 2.OBSERVER: Name: Stefano SPOSETTI Address: CH-6525 Gnosca, Switzerland E-mail: stefanosposetti@freesurf.ch 3.OBSERVING STATION: Nearest city: CH-6500 Bellinzona Station: Gnosca Observatory Latitude: 46deg 13min 54sec (N) Longitude: 9deg 1min 30sec (E) Altitude: 260 m Single/Multiple: single 5.TELESCOPE: Type: Newtonian Aperture: 40cm Magnification: - Mount: equatorial Motor drive: yes 6.TIMING & RECORDING: Occultation recorded: NEGATIVE Personal Equation Substracted: No because of electronic timing Event Time in UT Code: HH:MM:SS.ss S.ss Code: HH:MM:SS.ss S.ss S 22:40:37 D 22:45:40.2 ± 0,2s R 22:45:49.3 ± 0,2s E 22:50:17 Duration of the occultation: 9,13s ± 0,05s Timekeeping: via Computer thru "Dimension4" software. Mode of recording: CCD drift-scan thru "Winscan 207" software. Device of recording: CCD 7.OBSERVING CONDITIONS: Atmospheric transparency: good/fair Wind: no Star image stability: good Temperature: +1 deg C 8.ADDITIONAL COMMENTS: My position was quite north from the nominal path. I was unsure if it was worth to try or not. The Dido-event (about 20 hours before) was a good teacher: the true path can be quite off the predicted path so I decided to observe. It was a good choice. The accuracy of the absolute time measurement is ±0.2sec. The accuracy of the duration of the occultation is ± 0,05s. I placed a low-resolution image of the drift-scan here: http://www.astrosurf.com/sposetti/html/body_novita.html I can provide a high resolution image of the drift-scan.