+--------------------------------+ +--------------------------------+ ASTERIODAL OCCULTATION - REPORT FORM +--------------------------------+ +--------------------------------+ EAON & IOTA-ES EUROPEAN ASTEROIDAL OCCULTATION NETWORK INTERNATIONAL OCCULTATION TIMING ASSOCIATION EUROPEAN SECTION +--------------------------------+ +--------------------------------+ 1. DATE: 2 Dec 2015 STAR: UCAC4-493-006725 ASTEROID: (1114) Lorraine 2. OBSERVER Name: Stefano SPOSETTI Address: 6525 GNOSCA - Switzerland Email: stefanosposetti@ticino.com 3. OBSERVING STATION Nearest city: CH-6525 Gnosca Longitude: 9d 1m 26.5s (E) Latitude: 46d 13m 53.2s (N) Altitude: 260m (WGS84) 4. TIMING OF EVENTS Occultation recorded: POSITIVE Type of event: "S"tart observation; "I"nterrupt-start; "D"isappearance; "B"link; "F"lash; "E"nd observation; "I"nterrupt-end; "R"eappearance; "O"ther (specify) Personal Equation Substracted: No Event Time (UTC) Accuracy + Comments code: HH:MM:SS.sss S.sss -S : 22:00:47 -D : 22:10:14.163 ± 0.010 s -R : 22:10:19.763 ± 0.010 s -E : 22:17:06 duration: 5.600 s ± 0.020 s TELESCOPE Type: Schmidt-Cassegrain, Celestron 11-inch Aperture: 280mm Focal length: about 900mm (with focal reducer) Magnification: FOV 23x18arcmin Mount: Equatorial Motor drive: Yes 6. TIMING & RECORDING Timekeeping: KIWI-OSD with GPS Garmin 18 LVC Sensor/Camera: Videocamera WAT-910HX, CCIR, 1/2", ICX429ALL sensor Videocamera settings: Shutter=1/50; Gain=high; Gamma=1.00 Personal computer, Imaging Source DFG/SV1 PCI, S-video, CCIR, Virtualdub software, saved on Harddisk, Huffyuv Timekeeping: GPS 1PPS (US Global Sat EM-406A) Time insertion device: IOTA-VTI, v.1.1.42 Integration time: 0.020 s 7. OBSERVING CONDITIONS Atmospheric transparency: good Wind: no Star image stability: good Minor Planet Visible: no 8. ADDITIONAL COMMENTS -Virtualdub v. 1.8.6 with "bob doubler" filter was used to deinterlace the original avi-file. -Tangra v. 3.5 was used to produce the lightcurve. -A time correction was performed because of the use of an integrating camera. -A (non-deinterlaced) lightcurve can be seen here: http://sposetti.ch/wp-content/uploads/2014/09/2015_Dec_02_Lorraine.png