ASTROSAT CZTI

Data Quality Report

Orbit 20230206_A12_022T01_9000005498_level2

Creation date: 2023-02-17T16:18:03.934740
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/AS1A12_022T01_9000005498cztM0_level2.fits modeM0/AS1A12_022T01_9000005498cztM0_level2_quad_clean.evt
Size (bytes)1,837,762,5602,022,995,520
Size1.7 GB 1.9 GB
Events in quadrant A11,673,40713,525,257
Events in quadrant B10,804,16513,060,787
Events in quadrant C8,600,0108,168,569
Events in quadrant D9,780,02011,765,375

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05020550
B05618980
C011552260
D05472610

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08600
B08650
C08640
D08690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044420
B044300
C044360
D040220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21606529381.359776%
B215898119545.536874%
C2139948682940.575437%
D21607778693.641757%

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 414045 217716 0 0 0.00% 0.00%
B 414045 217291 0 0 0.00% 0.00%
C 414045 213927 0 0 0.00% 0.00%
D 414045 217311 0 0 0.00% 0.00%

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 9 19 9663 9.04 3046 2869 751.5
A 7 110 9618 8.98 3046 2869 751.5
A 0 29 9535 8.87 3046 2869 751.5
B 2 9 9324 11.84 2866 2738 556.3
B 3 80 8079 9.6 2866 2738 556.3
B 2 8 7517 8.59 2866 2738 556.3
C 1 81 7178 8.74 2278 2143 576.3
C 3 203 6936 8.32 2278 2143 576.3
C 3 202 6908 8.27 2278 2143 576.3
D 4 160 7187 6.24 2806 2569 740.0
D 10 189 7184 6.24 2806 2569 740.0
D 7 3 7162 6.21 2806 2569 740.0

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