ASTROSAT CZTI

Data Quality Report

Orbit 10389

Creation date: 2024-06-27T15:58:45.558760
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/AS1A03_073T01_9000001498_10389cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10389cztM0_level2_quad_clean.evt
Size (bytes)478,307,52085,723,200
Size456.1 MB 81.8 MB
Events in quadrant A3,142,930534,000
Events in quadrant B3,500,226538,646
Events in quadrant C3,213,213539,737
Events in quadrant D4,165,247507,474

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139443
B0148072
C0142322
D0168102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6834380.556043%
B6834891.302312%
C6834701.024290%
D68341041.521803%

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 8884 6835 0 0 0.00% 0.00%
B 8884 6835 19 19 0.21% 0.28%
C 8884 6835 39 39 0.44% 0.57%
D 8884 6836 78 78 0.88% 1.14%

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 5 16 10835 61.07 808 794 164.4
A 0 226 7437 40.41 808 794 164.4
A 12 194 6543 34.97 808 794 164.4
B 4 239 164278 1051.96 816 796 155.4
B 0 214 55909 354.64 816 796 155.4
B 4 81 32671 205.11 816 796 155.4
C 1 3 126978 690.17 789 793 182.8
C 14 234 8470 41.99 789 793 182.8
C 13 61 5930 28.1 789 793 182.8
D 8 195 444881 2385.32 774 754 186.2
D 14 34 300181 1608.16 774 754 186.2
D 1 20 199970 1069.95 774 754 186.2

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