ASTROSAT CZTI

Data Quality Report

Orbit 04129

Creation date: 2024-06-27T14:37:47.781711
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_195T01_9000000530_04129cztM0_level2.evt modeM0/AS1G05_195T01_9000000530_04129cztM0_level2_quad_clean.evt
Size (bytes)494,328,96092,891,520
Size471.4 MB 88.6 MB
Events in quadrant A3,919,952581,940
Events in quadrant B4,007,438569,984
Events in quadrant C3,223,853570,938
Events in quadrant D3,302,480560,673

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171934
B0172553
C0154843
D0158783

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7610941.235217%
B76101572.063075%
C7610400.525624%
D7610400.525624%

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 7915 7612 48 48 0.61% 0.63%
B 7915 7612 72 72 0.91% 0.95%
C 7915 7612 0 0 0.00% 0.00%
D 7915 7612 17 17 0.21% 0.22%

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 0 50 324497 1866.09 845 825 173.4
A 0 199 232137 1333.6 845 825 173.4
A 15 234 35796 201.62 845 825 173.4
B 10 16 242564 1477.49 852 831 163.6
B 15 204 169961 1033.73 852 831 163.6
B 4 48 100580 609.67 852 831 163.6
C 9 144 8732 41.52 820 820 190.5
C 13 61 6924 32.03 820 820 190.5
C 12 4 4846 21.13 820 820 190.5
D 12 233 55366 275.71 815 789 197.9
D 13 239 34383 169.71 815 789 197.9
D 2 14 21215 103.19 815 789 197.9

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