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A 2.7 second occultation was recorded by Dave Gault from the Blue Mountain. In addition, there would appear to be a single video frame 'blink event' some 3.7 seconds after the reappearance. No other observations were reported.
View a prediction here.
Observers:
1 D Gault,Hawkesbury Heights, NSW, AU
2(P) Prediction
Discussion:
The circle above is plotted at the expected 72 km diameter of (429) Lotis. With only one chord it is not possible to determine whether Dave was north or south of the central line of the event. The circle has been plotted on the observed chord. As can be seen from the outline above, it is difficult to reconcile the 'blink' event with a limb grazing occultation on (429) Lotis - the time difference between the end of the main occultation and the blink is close to the maximum possible occultation duration and would require (429) Lotis to be very elongated or much larger than expected. The alternative explanations are that the event is spurious artifact of seeing or that (429) Lotis is a binary object or has a satellite.
The figure below shows the Tangra light curve of the occultation.
Observational Data:
Observation details for MP ( 429 ) Lotis
By Star UCAC4 519-008241
On 2016-03-01 at 11:34:36.0
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Observer Dave Gault
Location Hawkesbury Heights, NSW, AU
Longitude +150:38
Latitude -33:39
Altitude 286 m
Datum WGS84
Telescope SCT including Cass and Mak
Aperture 30 cm
Seeing Steady Clear
Camera Type Flea 3-03S1 with ADVS ADVS
Camera Delay
Timing GPS - time inserted Video with frame analysis
Disappearance 11:34:34.60
Reappearance 11:34:37.30
Comments: Star was seen to blink for one frame duration at 11:34:41.0 UT Light curve, CSV files included with report.