I observed 1997 November 7 occultation of 7.3-mag. PPM 45832 by (1437) Diomedes at Fuchu-city of Tokyo.
The period from disappearance to reappearance was 4.9 sec.
Following is my detailed data.
Asteroid :No.1437 Diomedes Star :PPM 45832 (7.3 mag.) Date(U.T.):7th Nov. 1997 Observer Name:Mikiya Sato Telescope: Aperture:12cm Focal, length:720mm, Type:Newton, Eyepiece Power:x18 Observing site name: Futyu City Tokyo Japan Longitude:139d 28' 45" E Latitude : 35d 40' 43" N Height above sealevel:60m Map 1/25,000(Tokyo Datum) Sky Transparency :Fair Star Image Stability:Fair EVENT TIMINGS: (U.T.) Started Observing:09h24m00. s Disappearance: 09h29m56.0s (Gradual) Reappearance: 09h30m00.9s (Sure of event) Stopped Observing:09h33m00. s Time Source:JJY Recording method:Voice & Tape Recorder
This event was observed from several stations around Tohoku district and Kantou district (including Tokyo) in Japan.
Following figure is arranged by Toshio Hirose. (Thanks for his arrangement.)
FAS HOME PAGE