ASTROSAT CZTI

Data Quality Report

Orbit 32114

Creation date: 2024-06-27T20:36:37.130054
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_32114cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32114cztM0_level2_quad_clean.evt
Size (bytes)1,289,370,240206,645,760
Size1.2 GB 197.1 MB
Events in quadrant A6,962,7351,366,852
Events in quadrant B13,268,7021,330,061
Events in quadrant C7,284,2781,328,839
Events in quadrant D10,602,9811,278,399

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0191
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031306940
B0512371624
C031984885
D0425941046

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03119
B03108
C03108
D0-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14789850.574752%
B147685473.703954%
C148022531.709228%
D147903462.339419%

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 19379 14804 1 1 0.01% 0.01%
B 19379 14783 139 139 0.72% 0.94%
C 19379 14820 24 24 0.12% 0.16%
D 19379 14805 320 320 1.65% 2.16%

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 29675 77.74 1792 1754 359.1
A 13 6 27320 71.19 1792 1754 359.1
A 3 137 18092 45.49 1792 1754 359.1
B 6 159 4266262 12909.95 1750 1706 330.3
B 10 245 1579757 4777.18 1750 1706 330.3
B 0 190 152449 456.34 1750 1706 330.3
C 14 238 301036 748.4 1702 1712 400.0
C 0 10 215483 534.49 1702 1712 400.0
C 14 254 43843 105.34 1702 1712 400.0
D 8 195 3065457 7583.0 1707 1664 404.0
D 7 38 530266 1308.31 1707 1664 404.0
D 12 233 246168 605.16 1707 1664 404.0

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter