Dave Herald and Brian Loader have observed occultations by (210) Isabella.
View a prediction.
Observers: 1 D Herald,Murrumbateman 2 B Loader,Darfield 3(P) Prediction
While Brian and Dave are widely seperated, these observations are almost on the same chord across (210) Isabella. As such, this observation does not really confirm the shape model presented above nor does it indicate which part of Isabella is involved. These observations indicate a significant shift in the path south from the predicted line.
The figure below shows the Tangra light curve of Brians observation.
The figure below shows the Tangra light curve of Daves observation.
Observation details for MP ( 210 ) Isabella By Star UCAC4 452-051741 On 2016-02-21 at 13:22:11.0 _______________________________ Observer Dave Herald Location Murrumbateman Longitude +148:59 Latitude -34:57 Altitude 594 m Datum WGS84 Telescope Newtonian Aperture 40 cm Seeing Steady Clear Camera Type Watec 910BD PAL/CCIR Camera Delay Timing GPS - time inserted Video with frame analysis Disappearance 13:22:28.57 Reappearance 13:22:36.53 Comments: Lightcurve from 00:00:00 to 13:23:08 by Tangra v3.5.5 using AperturePhotometry/AverageBackground. Analysis by AOTA v220.127.116.11. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 _______________________________ Observer B. Loader Location Darfield Longitude +172:06 Latitude -43:28 Altitude 210 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 25 cm Seeing Strong flickering Clear full moon Camera Type WAT910BD AAV-PAL Camera Delay Timing GPS - time inserted Video with frame analysis Disappearance 13:18:13.99 Reappearance 13:18:22.47 Comments: Lightcurve from 13:15:45 to 13:20:02 by Tangra v3.5.5 using AperturePhotometry/AverageBackground. Analysis by AOTA v18.104.22.168. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8