A 5 second occultation was recorded by Dave Herald, using an SCT Telescope and Watec 901BD camera.

1 miss was recorded for this event.

View the IOTA update.

Observers:
  1(M) T Barry, Penrith, Sydney, New South Wales, Australia
  2    D Herald, Murrumbateman, New South Wales, Australia
  3(P) Prediction




       

Discussion:

The circle above is plotted at the expected diameter of Achilles. With only one chord, it is not possible to tell if Dave was north or south of the centre line of the event. The miss is sufficiently distant from the chord to not be a reliable guide. The circle has been plotted centred on the observed chord.

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

Name:

Observational Data:

Observation details for MP ( 588 ) Achilles
By Star              UCAC4 291-150040
On 2017-07-10  at 14:16:36.0

_______________________________

Observer   Tony Barry
Location   Penrith, Sydney
Longitude  +150:43
Latitude   -33:44
Altitude   52 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear 
Camera Type  Grasshopper Express with ADVS              ADVS          
Camera Delay 
Timing     GPS - time inserted Video, photo or photoelectric

Missed

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

_______________________________

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     Steady Fog 
Camera Type  Watec 910BD    PAL/CCIR      
Camera Delay 
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:16:29.89
Reappearance   14:16:34.65
Comments: through fog Lightcurve from 14:16:05 to 14:18:00 by Tangra v3.6.6 using
AperturePhotometry/AverageBackground. Analysis by AOTA v4.3.2.0.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.8