ASTROSAT CZTI

Data Quality Report

Orbit 13113

Creation date: 2024-06-27T16:36:30.086578
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/AS1A04_017T01_9000001932_13113cztM0_level2.evt modeM0/AS1A04_017T01_9000001932_13113cztM0_level2_quad_clean.evt
Size (bytes)679,296,96064,111,680
Size647.8 MB 61.1 MB
Events in quadrant A3,897,353407,236
Events in quadrant B4,510,967384,324
Events in quadrant C2,997,081414,509
Events in quadrant D8,743,299297,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153752
B0172671
C0127291
D0302321

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62601622.587859%
B62606229.936102%
C626060.095847%
D6260198631.725240%

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 7606 6262 121 121 1.59% 1.93%
B 7606 6262 350 350 4.60% 5.59%
C 7606 6262 0 0 0.00% 0.00%
D 7606 6262 1781 1781 23.42% 28.44%

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 15 223 468105 2974.08 781 769 157.1
A 15 239 213046 1350.91 781 769 157.1
A 12 189 159625 1010.94 781 769 157.1
B 4 239 1190339 8373.93 755 736 142.1
B 0 85 197203 1382.98 755 736 142.1
B 3 64 131739 922.16 755 736 142.1
C 13 61 5644 27.31 767 773 178.3
C 14 234 3531 15.47 767 773 178.3
C 0 207 3470 15.12 767 773 178.3
D 13 122 5527727 35604.02 637 620 155.2
D 1 52 468029 3010.91 637 620 155.2
D 10 157 202606 1301.14 637 620 155.2

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