All times UT unless otherwise noted

2984 Chaucer is predicted to occult a magnitude 8.3 star in Gemini early on November 22nd 2016 PST in a rather uncertain prediction...

The Lightcurve..

AOTA analysis of the file C:\Users\BREIT IDEAS Obs\Videos\Chaucer.csv
- analysed on Wednesday, November 23, 2016 at 9:17 PM UTC
- using AOTA v4.2.5.0

Event #1

  Event location in video frame ID's
   D: 1365.0  +0.5/-0.5
   R: 1452.0  +0.5/-0.5

  Event time in UTC
   D: 10 37 32.07 ± 0.02
   R: 10 37 34.97 ± 0.02

  Duration of transition in frames
   D: 10
   R: 6

  SN at event locations
   D: 43.7
   R: 48.8
   Ave: 46.3

  Applied confidence level
   D: 90 %
   R: 90 %

===== Camera details =====
Camera                 : WAT-902H2 Ultimate
Frames integrated      : 0
Video system           : NTSC
Camera delays have been applied by AOTA to the times

==== Measurement info ====
Measurement tool       : Limovie
Measured at Field level: False
# Measurements binned  : 1
Normalisation          : None
Time scale from tool   : True

===== end of report ======

The Lightcurve..

AOTA analysis of the file C:\Users\BREIT IDEAS Obs\Videos\Chaucer_Fields.csv
- analysed on Thursday, November 24, 2016 at 9:22 PM UTC
- using AOTA v4.2.5.0

Event #1

  Event location in video frame ID's
   D: 1366.5  +0.5/-0.5
   R: 1452.5  +1.5/-0.5

  Event time in UTC
   D: 10 37 32.10 ± 0.01
   R: 10 37 34.98 ± 0.02

  Duration of transition in frames
   D: 10
   R: 10

  SN at event locations
   D: 30.6
   R: 34.0
   Ave: 32.3

  Applied confidence level
   D: 90 %
   R: 90 %

===== Camera details =====

Computations results

star used: Limb darkening using sqrt law [this is a large star with limb darkening verified by R-OTE analysis]

confidence level: 99.73 percent in use (3 sigma)

D (frame num: referenced to input frame numbers) = 2731.01 (+/-) 0.375

R (frame num: referenced to input frame numbers) = 2904.62 (+/-) 0.287

D  (seconds) =  45.562434 + 0.000000 (camera delay) - 0.016700 (VTI offset) = 45.545734 (+/-) 0.006253   @ 2016-11-22 10:37:32.082733

R  (seconds) =  48.458744 + 0.000000 (camera delay) - 0.016700 (VTI offset) = 48.442044 (+/-) 0.004795   @ 2016-11-22 10:37:34.979043

[note:  error bars are included in above EOD analysis]

duration (readings) = 173.61 (+/-) 0.472

duration  (seconds) =   2.896310 (+/-) 0.008

Dbegin   (frame num: referenced to input frame numbers) =  2718.58 (+/-) 0.375   @ 2016-11-22 10:37:31.875259 (with cameraDelay and VTIoffset)

Dend     (frame num: referenced to input frame numbers) =  2743.45 (+/-) 0.375   @ 2016-11-22 10:37:32.290207 (with cameraDelay and VTIoffset)

Rbegin   (frame num: referenced to input frame numbers) =  2897.50 (+/-) 0.287   @ 2016-11-22 10:37:34.860258 (with cameraDelay and VTIoffset)

Rend     (frame num: referenced to input frame numbers) =  2911.74 (+/-) 0.287   @ 2016-11-22 10:37:35.097828 (with cameraDelay and VTIoffset)

Istar =     991.19 (+/-) 2.098

Iast  =       1.27 (+/-) 1.678

logLikelihood =  -26271.49

nominal magDrop =  7.23 [very close to predicted 7.1]

maximum magDrop =  0.00

minimum magDrop =  6.32

Bnoise   =    48.56

Anoise   =    11.94

SNR      = 20.41 [very clean light curve]

symmetry = 0.25