Three clearly observed misses were recorded for this event. One was video OSD and two were Visual.
View the updated prediction.
Observers: 1(M) D Watson,Thornton near Whakatane, NZ 2(M) J Broughton,Reedy Creek, QLD, AU 3(M) P Anderson,THE GAP,Brisbane,QLD,AU 4(P) Prediction
The circle above is plotted at the expected 46 km diameter of Erna. With no positive chords we cannot say where the actual path was, so the circle has been plotted on the predicted path.
Observation details for MP (406) Erna By Star TYC 5527-00942-1 On 2013-04-18 at 10:01:56.0 _______________________________ Observer Diana Watson Location Thornton near Whakatane, NZ Longitude +176:51 Latitude -37:55 Altitude 3 m Datum Other Telescope SCT including Cass and Mak Aperture 200 cm Seeing Slight flickering Clear Camera Type Camera Delay Timing Tape Recorder + time signal Visual, no PE applied Missed Comments: _______________________________ Observer John Broughton Location Reedy Creek, QLD, AU Longitude +153:23 Latitude -28:06 Altitude 66 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Steady Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 0.11 Timing GPS - time inserted Video with frame analysis Missed Comments: _______________________________ Observer Peter Anderson Location THE GAP,Brisbane,QLD,AU Longitude +152:55 Latitude -27:27 Altitude 170 m Datum WGS84 Telescope Newtonian Aperture 41 cm Seeing Steady Clear Camera Type Visual Camera Delay 0 Timing Tape Recorder + time signal Visual, PE applied Missed Comments: ID Positive. Nearby comparison star disappeared for 1.5secs from 10hrs 04m 01.7sec,(actual), but obviously spurious because image 'fuzzed' a couple of times within 10 seconds of this time. The subject star held solid. The 'blind spot' is suspected plus the ancient eyes factor.