Brian Loader has observed a very brief 0.3 second occultation from Darfield, South Island, New Zealand. No other reports were received for this event.
View the IOTA update.
Observers: 1 B Loader,Darfield 2(P) Prediction
The circle above is plotted at the expected 145 km diameter of (141) Lumen. Clearly, given the very short duration, the occultation is a near graze near the limb of the asteroid. With only one chord it is not possible to determine whether Brian was north or south of the central line of the event.
The figure below shows the Tangra light curve of the occultation.
Observation details for MP ( 141 ) Lumen By Star UCAC2 17370269 On 2016-03-28 at 16:13:15.0 _______________________________ 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 Steady Clear Camera Type WAT910BD AAV-PAL Camera Delay Timing GPS - time inserted Video with frame analysis Disappearance 16:13:17.25 Reappearance 16:13:17.57 Comments: looks to be a very brief graze Lightcurve from 16:11:32 to 16:14:37 by Tangra v3.5.6 using AperturePhotometry/AverageBackground. Analysis by AOTA v22.214.171.124. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8