A 3.9 second occultation was recorded by Brian Loader, using video OSD technique.

No clearly observed misses were recorded for this event.

View the Personal prediction.

Observers:
  1    B Loader,Darfield, NZ
  2(P) Prediction, May. Personal                     


        

Discussion:

The circle above is plotted at the expected 37 km diameter of Helina. 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.

Observational Data:

Observation details for MP ( 1075 ) Helina
By Star              UCAC4 353-160666
On 2014-05-21  at 16:51:58.0

_______________________________

Observer   B. Loader
Location   Darfield,NZ
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  WAT120N+       PAL/CCIR
Camera Delay 0.67
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:53:01.00
Reappearance   16:53:04.90
Comments: Occult prediction, expected delta mag 0.8, time max 7.4s,
 predicted time error 24 sec, prob 8% Problem with integration times, 
duration time probably more accurate than actual D and R times. 
Report prepopulated by IOTA Reporting Add-in for OW ver.1.7