ASTROSAT CZTI

Data Quality Report

Orbit 21192

Creation date: 2024-06-27T18:24:45.987824
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/AS1A06_002T01_9000003134_21192cztM0_level2.evt modeM0/AS1A06_002T01_9000003134_21192cztM0_level2_quad_clean.evt
Size (bytes)483,399,36092,347,200
Size461.0 MB 88.1 MB
Events in quadrant A3,105,112604,369
Events in quadrant B3,268,249620,110
Events in quadrant C3,168,755586,036
Events in quadrant D4,673,790549,913

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132412
B0136432
C0132172
D0181073

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6244190.304292%
B6244360.576553%
C6244841.345291%
D62431452.322601%

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 7584 6245 0 0 0.00% 0.00%
B 7584 6245 7 7 0.09% 0.11%
C 7584 6245 6 6 0.08% 0.10%
D 7583 6244 131 131 1.73% 2.10%

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 13 252 50280 310.27 792 779 159.5
A 13 254 9828 56.72 792 779 159.5
A 0 226 6971 38.81 792 779 159.5
B 0 182 65967 433.35 797 780 150.4
B 3 64 21494 137.7 797 780 150.4
B 0 190 18291 116.41 797 780 150.4
C 14 238 121891 683.13 756 763 177.3
C 0 10 49677 275.86 756 763 177.3
C 3 233 42593 235.91 756 763 177.3
D 1 20 1270679 6966.58 750 729 182.3
D 12 233 196428 1073.55 750 729 182.3
D 7 238 122278 666.78 750 729 182.3

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