ASTROSAT CZTI

Data Quality Report

Orbit 32106

Creation date: 2024-06-27T20:36:33.083663
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/AS1T04_051T01_9000004686_32106cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32106cztM0_level2_quad_clean.evt
Size (bytes)619,332,48080,141,760
Size590.6 MB 76.4 MB
Events in quadrant A3,552,690505,093
Events in quadrant B6,025,588496,649
Events in quadrant C4,058,525500,531
Events in quadrant D4,693,417483,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142523
B0220043
C0162033
D0189303

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309791.252179%
B63092443.867491%
C63093425.420827%
D6309811.283880%

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 7699 6310 1 1 0.01% 0.02%
B 7699 6309 18 18 0.23% 0.29%
C 7699 6310 30 30 0.39% 0.48%
D 7699 6310 9 9 0.12% 0.14%

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 2 79 12697 66.35 914 900 177.8
A 13 254 11822 61.43 914 900 177.8
A 3 137 7962 39.72 914 900 177.8
B 6 159 1711694 10521.2 898 880 162.6
B 10 245 605363 3717.46 898 880 162.6
B 4 80 62287 377.64 898 880 162.6
C 0 10 329056 1659.25 878 889 197.8
C 14 238 182238 916.92 878 889 197.8
C 4 175 50349 250.08 878 889 197.8
D 8 195 1223243 5827.79 896 874 209.7
D 12 233 48607 227.57 896 874 209.7
D 2 250 35732 166.19 896 874 209.7

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