ВНИМАНИЕ! На форуме началось голосование в конкурсе - астрофотография месяца СЕНТЯБРЬ!
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ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2021/05/15 STAR: UCAC4 424-070593 ASTEROID: (3) Juno 2 OBSERVER: Michel Turchenko EAON Abbr: E-mail: mturchenko@yandex.ru Address: 357601, Russian Federation, Stavropol region, Yessentuki, Il'inskaya 22 3 OBSERVING STATION: Nearest city: Kislovodsk (RU) Station: Longitude (DD MM SS.s): E 42°40'19.89" Latitude (DD MM SS.s): N 43°44'17.40" Altitude (m): 2073 Datum: WGS84 Single station: +----------------------------+ 4 TIMING OF EVENTS: | | | EVENT REPORTED: POSITIVE | | | +----------------------------+ 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 - 19:43:13 - - : D - 19:45:12.113 - +/-0.030 : R - 19:45:30.547 - +/-0.030 : E - 19:48:08 - - : Duration : 18.434 +/-0.06 Mid-event : 19:45:21.33 5 TELESCOPE: Type: Newton Aperture: 350 mm Magnification: prime focus 1650 mm Mount: Alt-Azimutal Motor drive: Yes 6 TIMING & RECORDING: Time source: Reference time signals from GPS-USB Sensor: ZWO ASI385MC Recording: Notebook Lenovo ThinkPad T480 Time insertion (specify): Recording a 1PPS light flash and a GPS-synchronized system time stamp on a video Event insertion (specify): 7 OBSERVING CONDITIONS: Atmospheric transparency: Fair Wind: Weak 4 m/s Temperature: +13°C Star image stability: GOOD Minor planet visible: Yes 8 ADDITIONAL COMMENTS: Video rate is 20 fps. The time stamp on the video corresponds to the end of the exposure of the frame. To get the time of the event, the difference between the system time and thetime obtained from GPS was added and half of the frame duration was subtracted, that is, the time of the event was tied to the middle of the frame duration. The difference between the system time and the GPS time was determined with an accuracy of 2-4 ms. with 1PPS light flashes recorded on video. Wherein, the time difference was determined from those frames where the onset of the flash occurred at thebeginning of the frame exposure. Such measurements were taken before and after occultation. The difference in system time and GPS time in the moment of occultation was calculated from these measurements.The duration of the occultation was measured between the approximate middle of the fall and rise of the signal fronts from the star. The event was visible through faint, transparent clouds. Occultation was also observed on the 2.5-meter telescope of the Moscow State University, near which my equipment was located.
20 мая в России будет покрытие Апофисом!
ASTEROIDAL OCCULTATION - REPORT FORM +------------------------------+ +------------------------------+ | EAON | | IOTA/ES | | | | INTERNATIONAL OCCULTATION | | EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION | | OCCULTATION NETWORK | | EUROPEAN SECTION | +------------------------------+ +------------------------------+ 1 DATE: 2021/07/25 STAR: UCAC4 417-148711 ASTEROID: (53) Kalypso 2 OBSERVER: Michel Turchenko EAON Abbr: E-mail: mturchenko@yandex.ru Address: 357601, Russian Federation, Stavropol region, Yessentuki, Il'inskaya 22 3 OBSERVING STATION: Nearest city: Yessentuki (RU) Station: Longitude (DD MM SS.s): E 42°50'43.70" Latitude (DD MM SS.s): N 44° 1'55.28" Altitude (m): 621 Datum: WGS84 Single station: +----------------------------+4 TIMING OF EVENTS: | | | EVENT REPORTED: POSITIVE | | | +----------------------------+ 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 - 23:08:12 - - : D - 23:08:28.865 - +/-0.060 : O - 23:08:46 - - : The beginning of the passage of translucent clouds R - 23:08:49.815 - +/-0.060 : The moment of reappearance is determined visually from the video. O - 23:09:07 - - : The end of the passage of translucent clouds E - 23:09:17 - - : Duration : 20.95 +/-0.12 Mid-event : 23:08:39.34 5 TELESCOPE: Type: Newton Aperture: 150 mm Magnification: prime focus 750 mm Mount: Equatoria Motor drive: Yes 6 TIMING & RECORDING: Time source: Reference time signals from GPS-USB Sensor: ZWO ASI385MC Recording: Notebook Lenovo ThinkPad T480 Time insertion (specify): Recording a 1PPS light flash and a GPS-synchronized system time stamp on a video Event insertion (specify): 7 OBSERVING CONDITIONS: Atmospheric transparency: Poor Wind: Weak 3 m/s Temperature: +19°C Star image stability: GOOD Minor planet visible: Yes 8 ADDITIONAL COMMENTS: Video rate is 10 fps. The time stamp on the video corresponds to the end of the exposure of the frame. To get the time of the event, the difference between the system time and the time obtained from GPS was added and half of the frame duration was subtracted, that is, the time of the event was tied to the middle of the frame duration. The difference between the system time and the GPS time was determined with an accuracy of 2-4 ms. with 1PPS light flashes recorded on video. Wherein, the time difference was determined from those frames where the onset of the flash occurred at the beginning of the frame exposure. Such measurements were taken before and after occultation. The difference in system time and GPS time in the moment of occultation was calculated from these measurements. The disappearance of the star was determined by the average signal level of the star. During occultation, the field of view was obscured by translucent clouds, backlit by a bright moon. The moment of reappearance was visible through translucent clouds, but it is poorly defined on the graph.
17 августа будет покрытие яркой звезды Омега Рыб 4-й зв.величины! Полоса довольно широкая- 67км.Есть любители в Архангельске, Беломорске, Костомукше?
Если кому интересно. О покрытии Омеги Рыб астероидом Геометрия