A Two Positive chords were recorded using video OSD technique.
No clearly observed misses were recorded for this event.
View the TT14 prediction.
Observers: 1 D Herald,Murrumbateman, NSW, AU 2 J Newman,Flynn, ACT, AU 3(P) Prediction TT14, 30 Dec 2014
The circle above is plotted at the expected 46 km diameter of Pythia . With 2 chords we can be confident of the path of Pythia and that it was north of the predicted line. John Newman's recording had a problem with his GPS time insertion. So Only the duration could be measured by using a frame count. The absolute UTC time has bee estimated by aligning his short chord to fit the circle with Dave Herald's longer chord. Lightcurve data suggests that an ellipse with maximum axis ratio of about 1.15:1 might be a better fit but we have no information about the major axis angle and there is no DAMIT or ISAM model to give a clue of projected shape.
The figure below shows the Tangra light curve of Dave's occultation as analysed by Aota.
The figure below shows the Tangra light curve of John's occultation as analysed by Aota.
Observation details for MP ( 432 ) Pythia By Star UCAC4 595-036941 On 2015-01-16 at 13:43:30.0 _______________________________ Observer Dave Herald Location Murrumbateman, NSW, AU Longitude +148:59 Latitude -34:57 Altitude 594 m Datum WGS84 Telescope SCT including Cass and Mak Aperture 40 cm Seeing Slight flickering Clear Camera Type WAT910BD PAL/CCIR Camera Delay -0.04 Timing GPS - time inserted Video with frame analysis Disappearance 13:43:41.92 Reappearance 13:43:44.70 Comments: Lightcurve from 13:42:25 to 13:44:24 by Tangra v3.3.2 using AperturePhotometry/AverageBackground. Analysis by AOTA v18.104.22.168. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 _______________________________ Observer John Newman Location Flynn, ACT, AU Longitude +149:02 Latitude -35:11 Altitude 657 m Datum WGS84 Telescope other - specify below Aperture 41 cm Seeing Slight flickering Clear other - list in comments Camera Type WAT120N+ NTSC/EIA Camera Delay -0.159 Timing GPS - time inserted Video with frame analysis Disappearance 00:00:13.43:12.33 Reappearance 00:00:13.41:12.80 Comments: A positive event sans Absolute Time Base. Times adjusted to match Dave Herald's when Pythia is plotted as circle Report prepopulated by IOTA Reporting Add-in for OW ver.1.8 Analysis by AOTA v22.214.171.124.