A 6.9 second occultation was recorded by Gordon Hudson, using Video OSD technique.
An obseravtion by Brian was initially deemed a possible positive event but when it did not fit with Gordon's data nor the ISAM model we decided to treat it as a miss. 6 other observers were registered in OW but were clouded out or had other problems that prevented observation.
View the TT14 prediction.
Observers: 1 B Loader,Darfield 2 G Hudson,Porirua, New Zealand 3(P) Prediction, Camilla TT14 1 May 4(P) Prediction for Camilla(S/2001) S/2001 is a Satellite of Camilla - prediction made with Occult4 Others registered but no result: Chris Chad AU - late starting John Drummond, NZ Clouded out Dave Gault AU - late starting John Talbot - On wrong field Peter Graham NZ - Bill Allen NZ -
The ellipse above is plotted at the best fit axis ratio as determined light curve data. It also shows the predcited path of the satellite with a small event at lower right. While this is close to Brian's path the position of his "possible" is a long way from the predcited. After discussions we decided to treat Brian's data as a miss
This is the "Most probable" solution to the data. The ellipse above is plotted at the best fit axis ratio as determined by matching the ISAM model. With only one chord it is not possible to determine whether Gordon was north or south of the central line of the event. However if we treat Brian's line as a miss then it constrains the psth to the north and close to the prediction The ISAM 3D model has been overlaid and the ellipse adjusted to be a good fit - Note this is the reverse of what we normally do and does not imply an actual shape.
The figure below shows the Gordon's light curve of the occultation.
The figure below shows the Brian's light curve of the "possible" occultation.
It is a pity that more of us did not manage to observe as this had potential to get 5 or 6 chords.
Observation details for MP ( 107 ) Camilla By Star UCAC4 529-031891 On 2013-05-07 at 07:52:39.0 _______________________________ Observer B. Loader Location Darfield Longitude +172:06 Latitude -43:28 Altitude 210 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 20 cm Seeing Strong flickering Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 0.35 Timing GPS - time inserted Video with frame analysis Disappearance 07:52:28.44 Reappearance 07:52:30.32 Comments: A *possible* event only. Needs confirmation by other observations. Report prepopulated by IOTA Reporting Add-in for OW ver.1.7 _______________________________ Observer G Hudson Location Porirua, New Zealand Longitude +174:50 Latitude -41:06 Altitude 52 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 30 cm Seeing Steady Clear Camera Type WAT120N+ PAL/CCIR Camera Delay 0.11 Timing GPS - time inserted Video with frame analysis Disappearance 07:52:43.04 Reappearance 07:52:50.01 Comments: Severe problems with time insertion - Disapears randomly