ASTROSAT CZTI

Data Quality Report

Orbit 22203

Creation date: 2024-06-27T18:37:59.271938
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/AS1A07_065T01_9000003284_22203cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22203cztM0_level2_quad_clean.evt
Size (bytes)401,304,96092,266,560
Size382.7 MB 88.0 MB
Events in quadrant A2,940,865608,149
Events in quadrant B2,991,945620,087
Events in quadrant C2,951,640583,010
Events in quadrant D2,864,193567,072

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122721
B0124101
C0123621
D0123831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5949160.268953%
B5950310.521008%
C5950510.857143%
D5950260.436975%

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 7259 5950 0 0 0.00% 0.00%
B 7260 5951 0 0 0.00% 0.00%
C 7260 5951 0 0 0.00% 0.00%
D 7260 5951 18 18 0.25% 0.30%

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 10075 61.82 763 751 150.8
A 0 226 6673 39.26 763 751 150.8
A 3 137 6111 35.54 763 751 150.8
B 12 111 16891 113.76 759 742 142.0
B 11 111 14847 99.36 759 742 142.0
B 14 111 13741 91.57 759 742 142.0
C 14 238 117893 703.39 724 732 166.6
C 13 61 5096 26.2 724 732 166.6
C 0 10 4214 20.9 724 732 166.6
D 13 104 53333 301.97 728 706 174.3
D 2 234 24819 138.36 728 706 174.3
D 2 136 19290 106.63 728 706 174.3

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