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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
Discussion:
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.
Observational Data:
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 v4.2.0.2. 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 v4.2.0.1. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8