ASTROSAT CZTI

Data Quality Report

Orbit 03508

Creation date: 2024-06-27T14:30:19.220787
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/AS1G05_045T01_9000000468_03508cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03508cztM0_level2_quad_clean.evt
Size (bytes)388,143,36063,918,720
Size370.2 MB 61.0 MB
Events in quadrant A2,679,798385,553
Events in quadrant B3,229,749384,054
Events in quadrant C2,730,365387,165
Events in quadrant D2,721,471374,524

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120792
B0135911
C0122181
D0125671

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57732113.654945%
B57732634.555690%
C57731332.303828%
D57731602.771523%

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 5798 5774 4 4 0.07% 0.07%
B 5798 5774 4 4 0.07% 0.07%
C 5798 5774 5 5 0.09% 0.09%
D 5798 5774 43 43 0.74% 0.74%

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 14 238 25995 180.91 673 655 140.1
A 7 16 13941 94.85 673 655 140.1
A 15 174 13625 92.6 673 655 140.1
B 15 204 480134 3571.32 679 659 134.3
B 14 167 60132 442.98 679 659 134.3
B 2 249 10698 74.77 679 659 134.3
C 1 192 60074 382.81 660 660 155.2
C 9 54 35820 226.54 660 660 155.2
C 15 208 18002 111.73 660 660 155.2
D 13 223 153607 950.05 659 636 161.0
D 10 172 50930 312.36 659 636 161.0
D 7 46 15435 91.91 659 636 161.0

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
Veto Counter