ASTROSAT CZTI

Data Quality Report

Orbit 20160703_G05_245T01_9000000532_level2

Creation date: 2016-09-06T17:48:29.156209
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_245T01_9000000532cztM0_level2_bc.evt modeM0/AS1G05_245T01_9000000532cztM0_level2_quad_clean.evt
Size (bytes)371,367,360160,364,160
Size354.2 MB 152.9 MB
Events in quadrant A2,517,1451,044,795
Events in quadrant B2,695,4771,043,257
Events in quadrant C2,348,1941,025,334
Events in quadrant D2,929,439982,883

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230920
B0236800
C0226210
D0249140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110011461.327152%
B110011581.436233%
C110011281.163531%
D110012692.445232%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13211 11002 0 0 0.00% 0.00%
B 13211 11001 0 0 0.00% 0.00%
C 13211 11001 0 0 0.00% 0.00%
D 13211 11001 6 6 0.05% 0.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 118 47898 338.03 610 597 139.9
A 13 14 39061 274.88 610 597 139.9
A 15 234 29847 209.03 610 597 139.9
B 15 204 90191 742.63 613 603 120.6
B 10 16 62501 513.09 613 603 120.6
B 5 184 48915 400.47 613 603 120.6
C 10 65 13325 93.37 596 591 136.4
C 13 61 4081 25.59 596 591 136.4
C 7 247 1865 9.34 596 591 136.4
D 1 52 179281 1270.99 594 573 140.6
D 10 172 167386 1186.39 594 573 140.6
D 13 239 89389 631.67 594 573 140.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter