A Two widely separated occultations wer recorded by Dave Herald and John Drommond, using video OSD technique.
View the updated prediction.
Observers: 1 D Herald,Murrumbateman, NSW 2 J Drummond,Patutahi, Gisborne, NZ 3(P) Prediction, 28 Feb
The ellipse above is plotted at the best fit axis ratio as determined by Occult. With Two chords we can be confident of the path of Elfriede and that it was very close to the predicted line.
The figure below shows Dave's Tangra light curve of the occultation.
Observation details for MP ( 618 ) Elfriede By Star TYC 5718-00979-1 On 2013-04-13 at 15:58:15.0 _______________________________ Observer Dave Herald Location Murrumbateman, NSW Longitude +148:59 Latitude -34:57 Altitude 594 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 40 cm Seeing Steady Thin cloud < 2 Camera Type WAT120N+ PAL/CCIR Camera Delay 0.19 Timing GPS - time inserted Video with frame analysis Disappearance 15:58:13.83 Reappearance 15:58:25.51 Comments: Considerable thin cloud/smoke => 8-frame integration Report prepopulated by IOTA Reporting Add-in for OW ver.1.7 _______________________________ Observer John Drummond Location Patutahi, Gisborne, New Zealand Longitude +177:53 Latitude -38:37 Altitude 15 m Datum Other Telescope Newtonian Aperture 41 cm Seeing Slight flickering Clear Camera Type Camera Delay 0 Timing Tape Recorder + time signal Visual, PE applied Disappearance 16:01:23.00 Reappearance 16:01:33.40 Comments: Star disappeared from sight for ~10.4 seconds (16:01:23.0 - 16:01:33.4 UT). No Moon, dark, rural sky, no wind. Report prepopulated by IOTA Reporting Add-in for OW ver.1.7