ASTEROIDAL OCCULTATION - REPORT FORM EAON & IOTA/ES 1. DATE: 2021 Oct 23 STAR: HIP 16635 ASTEROID: (195412) 2002 GF39 2. OBSERVER: Name: Marcin Filipek Abbr: FIM Adress: 32-048 Jerzmanowice, Poland Phone: +48 502 084 115 3. OBSERVING STATION: Jerzmanowice Nearest city: Krakow, Poland Station: Latitude: 50° 12 43.9 N Longitude: 19° 45 02.8 E Altitude: 450 m WGS84, GPS meas 4. TIMING OF EVENTS OCCULTATION RECORDED : N E G A T I V E Type of event: (S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash (E)nd observation (J)nterrupt end (R)eappearance (O)ther (specify) Event Time (UTC) P. E. Accuracy code (HH MM SS.ss) S.ss SS.ss S 22 05 15 E 22 08 15 5. TELESCOPE Type: Newton Aperture: 250 mm Focal length: 1000 mm Mount: Equatorial, Sky-Watcher EQ6 Motor drive: Yes 6. TIMING & RECORDING Timekeeping: GPS Inserter SE OSD TomaszTech Sensor: Camera Samsung DCC-581F Recording: Hard disc on a PC 7. OBSERVING CONDITIONS Atmospheric transparency: good Wind: no Star image stability: good Temperature: 12 deg Celsius Minor planet visible: no Event in altitude: 55° 8. OBSERVATION QUALITY: good 9. ADDITIONAL COMMENTS: Camera settings: Integration 0.04 s AGC: low Evaluation in Tangra Constellation: Taurus Distance from center line: 164 km Event probability at site : 1.5 % Star magnitude: 10.7 Asteroid magnitude: 19.2 Predicted mag.drop: 8.5