【Remark】 ■ 2023.８.２９ １７ｈ３４〜３５ｍ ＵＴ Star ：UCAC4 620-023165 mag14.1 (=GSC 02411-02252 mag13.4) RA 05h 25m 30.163s 赤緯 +33°51' 54.45"(J2000) Asteroid：(704)Interamnia mag12.0 dia 306km Drop mag：aprox 0.15mag Max duration 12.5sec Area ：alomost Japan, North Taiwan, Hongkong Note ：IOTA/EA Campaign event Prediction by JPL-Horizons & Gaia EDR3 Occultation data map. link to Occult Watcher Cloud
■ the Importance of this event The significant intaresting body as very large and very low albedo, but this asteroid has not been studied much. We'll obtaine good shape of this asteroid by many observers coopetaion. ・ We hope to make the relationships of asteroidal observation among East Asia. ・ The improvement of observation against the small drop mag event. ・ The making studies for next age young observers like as collage students. Note for observation The observers should use large telescope and take long integtration shutter rather than usual asteroidal event to take stable star image, because this event will have very small dmag and low altitude.
Star :UCAC4 620-023165 (mag14.1) Asteroid : (704)Interamnia (mag12.0) Wide Map by The SKY 6 2deg square by The SKY 6 30' square by The SKY 6 40' square by Digitized Sky Survey（obtained by SteraNavigator11）
Required Data are below;
2.Observed Place. longitude, latitude and altitude，Datum.
Longitude and latitude must have digits of 0.1"
Altitude must have digits of 1m
3.Observation start and end time (UTC)
4.Occultation occured or not.
5.The Disappearance and Disappearance time, if the occultation occured
6.The Equipments and methods, for example telscope type and appature, camera, exporse duration