ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2021/05/08 STAR: UCAC4 557-050437 ASTEROID: (97845) 2000 PG28 2 OBSERVER: Name: Daniel BLAZEWICZ Address: 32-015 Klaj, POLAND 3 OBSERVING STATION: Klaj Nearest city: Niepolomice (Poland) Longitude: E 20 19 04.2 (WGS84) Latitude: N 49 59 33.2 (WGS84) Altitude: 211 m (MSL) Single station +----------------------------+ 4 TIMING OF EVENTS: | | | EVENT REPORTED: NEGATIVE | | | +----------------------------+ Event code S: observation Start I: Interruption start D: Disappearance J: Interruption end R: Reappearance B: Blink F: Flash E: observation End O: Other (specify) Abbreviations P.E.: Personal Equation = reaction time (for visual obs) Acc.: Accuracy (overall accuracy of the given time) Comments Event Time (UT) P.E. Acc. Code HH:MM:SS.ss S.ss S.ss S - 22:48:25 - - : E - 22:52:34 - - : 5 TELESCOPE: Type: NEWTON Aperture: 350 mm Magnification: prime focus f/4.8 Mount: EQUATORIAL with polar wedge Motor drive: YES 6 TIMING & RECORDING: Time source: NTP Stratum 1, Linux Ubuntu Sensor: ZWO ASI174MM-C Recording: ZWO ASICAP V2.3 Exposure: 150 ms 7 OBSERVING CONDITIONS: Atmospheric transparency: good Wind: no Temperature: 4 deg C Star image stability: fair Minor planet visible: no 8 ADDITIONAL COMMENTS: Analyzed using Tangra v3.7.3 S/N of occulted star: 5 - 7 Camera temperature: -15 deg C Event details generated post-factum: JPL 2021/07/08, Gaia EDR3: Event time: 22:49:37 UT Error in time: 6 s Max duration: 1.11 s Star magnitude: 13.6 m Asteroid magnitude: 18.8 m Combined magnitude: 13.6 m Magnitude drop: 5.2 m Position: In the 1-sigma zone Probability: 6 %