ASTROSAT CZTI

Data Quality Report

Orbit 28162

Creation date: 2024-06-27T19:48:43.048995
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1A10_045T04_9000004066_28162cztM0_level2.evt modeM0/AS1A10_045T04_9000004066_28162cztM0_level2_quad_clean.evt
Size (bytes)1,314,380,160158,941,440
Size1.2 GB 151.6 MB
Events in quadrant A6,543,0971,006,060
Events in quadrant B7,738,9941,003,608
Events in quadrant C7,107,130975,015
Events in quadrant D17,478,450867,442

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284940
B0318820
C0297510
D0616360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13911990.711667%
B139113752.695708%
C139112491.789950%
D13911378427.201495%

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 15046 13912 0 0 0.00% 0.00%
B 15046 13911 165 165 1.10% 1.19%
C 15046 13912 13 13 0.09% 0.09%
D 15046 13912 3304 3304 21.96% 23.75%

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 13 254 22898 62.73 1689 1652 338.7
A 12 16 17432 46.59 1689 1652 338.7
A 3 137 16916 45.07 1689 1652 338.7
B 10 245 961691 2984.79 1660 1614 321.7
B 15 32 157826 485.65 1660 1614 321.7
B 10 246 50231 151.14 1660 1614 321.7
C 3 233 513738 1345.44 1617 1628 380.6
C 14 238 258367 674.52 1617 1628 380.6
C 2 16 32624 81.43 1617 1628 380.6
D 1 52 8736793 25530.48 1432 1395 342.2
D 7 223 1597234 4664.07 1432 1395 342.2
D 2 250 860500 2510.86 1432 1395 342.2

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