Six positive chords for this event , Four using Video-OSD technique and two using Visual with audio recording.

One clearly observed miss was also recorded for this event.

View the updated prediction.

Observers:
  1    R Horvat ,Linden Observatory,NSW,AU ( Visual)
  2    P Nosworthy,Linden Observatory, NSW,AU ( Visual)
  3    T Dobosz,Linden Observatory,NSW,AU
  4    H Pavlov,St Clair, NSW, Australia
  5    T Barry,Werrington NSW AUS
  6    D Gault,Marulan, N.S.W. Australia
  7    D Herald,Murrumbateman, NSW, AU
  8(M) D Herald,5km north of Hall , NSW,AU
  9(P) Prediction, April 08

    

Discussion:

The ellipse above is plotted at the best fit axis ratio as determined by Occult. With 5 effective unique chords we can be confident of the path of Juewa and that it was north of the predicted line. Unfortunately there is no ISAM or DAMIT model of Juewa to compare the shape with.

The figure below shows the Tangra light curve of Tony Barry's occultation.

The figure below shows the Tangra light curve of Hristo Pavlov's occultation.

The figure below shows the Tangra light curve of Dave Gault's occultation.

The figure below shows the Sound plot using Audacity Analysis of Ron Horvat's occultation calls.

Observational Data:

Observation details for MP ( 139 ) Juewa
By Star              TYC 0003-00687-1
On 2013-08-31  at 14:27:19.0

_______________________________

Observer   Hristo Pavlov
Location   St Clair, NSW, Australia
Longitude  +150:46
Latitude   -33:48
Altitude   68 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   35 cm
Seeing     Steady Clear
Camera Type  WAT910HX       AAV-PAL
Camera Delay 0
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:27:23.74
Reappearance   14:27:35.82
Comments: http://www.hristopavlov.net/Observations/Positives/2013-09-01%20Juewa/Event.html
This was unattended recording and the telescope's corrector plate was completely fogged.
The light from the bright star still came through though.
Report prepopulated by IOTA Reporting Add-in for OW ver.1.7

_______________________________

Observer   Tony Barry
Location   Werrington NSW AUS
Longitude  +150:42
Latitude   -34:06
Altitude   162 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear
Camera Type  Flea3-28S4M with ADVS        ADVS
Camera Delay 0
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:27:24.88
Reappearance   14:27:36.18
Comments: Clear skies and no wind Cnr of Remembrance Drv and Cawdor Rd, Camden Park Sydney, NSW
Report prepopulated by IOTA Reporting Add-in for OW ver.1.7

_______________________________

Observer   Ted Dobosz
Location   Linden Observatory,NSW,AU
Longitude  +150:29
Latitude   -33:42
Altitude   580 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear
Camera Type  WAT120N+       PAL/CCIR
Camera Delay -0.11
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:27:26.84
Reappearance   14:27:38.40
Comments: Star remained faintly visible during occultation.

_______________________________

Observer   Dave Herald
Location   5km north of Hall , NSW,AU
Longitude  +149:02
Latitude   -35:07
Altitude   602 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Clear
Camera Type  WAT120N+       PAL/CCIR
Camera Delay -0.05
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.7

_______________________________

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 Clear
Camera Type  WAT120N+       PAL/CCIR
Camera Delay -0.05
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:27:42.54
Reappearance   14:27:44.30
Comments: D & R took 3 frames each
Report prepopulated by IOTA Reporting Add-in for OW ver.1.7

_______________________________

Observer   Rob Horvat   assisted by Gerry Flanagan
Location   Linden Observatory,NSW,AU
Longitude  +150:29
Latitude   -33:42
Altitude   567 m
Datum      WGS84
Telescope Newtonian
Aperture   76 cm
Seeing     Steady Clear
Camera Type  Visual         Other
Camera Delay 0.5
Timing     GPS - other linking Visual, no PE applied
Disappearance  14:27:26.80
Reappearance   14:27:38.60
Comments: Audacity Analysis file included with this report.

_______________________________

Observer   Peter Nosworthy
Location   Linden Observatory, NSW,AU
Longitude  +150:29
Latitude   -33:42
Altitude   568 m
Datum      WGS84
Telescope Newtonian
Aperture   30 cm
Seeing     Steady Clear
Camera Type  Visual         Other
Camera Delay 0.5
Timing     GPS - other linking Visual, PE applied
Disappearance  14:27:26.46
Reappearance   14:27:38.23
Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.7

_______________________________

Observer   Dave Gault
Location   Marulan, N.S.W. Australia
Longitude  +150:04
Latitude   -34:38
Altitude   614 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   20 cm
Seeing     Steady Fog
Camera Type  Flea3-03S3 with ADVS         ADVS
Camera Delay 0
Timing     GPS - time inserted Video with frame analysis
Disappearance  14:27:32.88
Reappearance   14:27:38.35
Comments: light curve plot and .csv file included with this report.