A 9 second occultation was recorded by Brian Loader, using an SCT Telescope and Watec 910BD camera.

Five misses were recorded for this event. There was no updated prediction for this event.

Observers:
  1(M) T Barry, Werrington, New South Wales, Australia
  2(M) D Gault, Hawkesbury Heights, New South Wales, Australia      
  3(M) D Herald, Murrumbateman, New South Wales, Australia 
  4    B Loader, Darfield, Canterbury, New Zealand
  5(M) A Pennell, Dunedin, Otago, New Zealand
  6(M) R Brown, Clarence Town, New South Wales, Australia
  7(P) Prediction- IOTA Feed                

         



       

Discussion:

The circle above is plotted at the expected diameter of Alauda. With only one chord it is not possible to determine whether Brian was north or south of the central line of the event, but the chord length is consistent with him being close. The circle has been plotted on the observed chord .

The event was clearly south of the predicted path.

The figure below shows the Tangra light curve of the occultation.

Observational Data:

Observation details for MP ( 702 ) Alauda
By Star              UCAC4 486-047314
On 2016-05-14  at 09:08:33.0

_______________________________

Observer   Tony Barry
Location   Penrith Observatory, Werrington Sydney
Longitude  +150:44
Latitude   -33:45
Altitude   55 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Slight flickering Clear 20 people watching one laptop screen !
Camera Type  Flea 3-03S3 with ADVS        NTSC/EIA      
Camera Delay 
Timing     GPS - time inserted Video, photo or photoelectric

Missed

Comments: Clear but no occ seen  Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

_______________________________

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

Missed

Comments:    

_______________________________

Observer   Dave Herald
Location   Murrumbateman
Longitude  +148:59
Latitude   -34:57
Altitude   594 m
Datum      WGS84
Telescope Newtonian
Aperture   40 cm
Seeing     Steady Clear 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: Definite Miss. URAT1 position consistent with significant move South Lightcurve from 09:07:00 to 09:10:00 by Tangra v3.5.7 using AperturePhotometry/AverageBackground. Analysis by AOTA v4.2.0.6. Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

_______________________________

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  Watec 910BD    AAV-PAL       
Camera Delay 
Timing     GPS - time inserted Video, photo or photoelectric
Disappearance  09:09:17.14
Reappearance   09:09:26.42
Comments: Times as generated by AOTA.  For some reason the results were not picked up on forming the report from OW.  Report prepopulated by IOTA Reporting Add-in for OW ver.1.8

_______________________________

Observer   Ash Pennell
Location   Dunedin New Zealand
Longitude  +170:29
Latitude   -45:52
Altitude   136 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Strong flickering Clear 
Camera Type  Watec 120N+    NTSC/EIA      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   

_______________________________

Observer   Richard Brown
Location   Clarence Town NSW, AU
Longitude  +151:50
Latitude   -32:37
Altitude   80 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   28 cm
Seeing     Slight flickering Clear 
Camera Type  G-Star         PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis

Missed

Comments: