ASTROSAT CZTI

Data Quality Report

Orbit 14188

Creation date: 2024-06-27T16:51:27.241304
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/AS1A04_229T01_9000002096_14188cztM0_level2.evt modeM0/AS1A04_229T01_9000002096_14188cztM0_level2_quad_clean.evt
Size (bytes)548,654,40090,714,240
Size523.2 MB 86.5 MB
Events in quadrant A3,601,228573,206
Events in quadrant B3,863,931596,891
Events in quadrant C3,779,817549,962
Events in quadrant D4,875,833518,779

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154583
B0160292
C0157112
D0192222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73071441.970713%
B73071892.586561%
C7307941.286438%
D73072613.571917%

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 8748 7310 5 5 0.06% 0.07%
B 8748 7310 9 9 0.10% 0.12%
C 8748 7310 10 10 0.11% 0.14%
D 8748 7310 206 206 2.35% 2.82%

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 15 69 23273 119.17 923 904 187.7
A 12 96 9924 48.05 923 904 187.7
A 12 189 9047 43.38 923 904 187.7
B 0 219 75326 418.43 927 905 177.9
B 4 142 48313 266.55 927 905 177.9
B 0 189 40419 222.16 927 905 177.9
C 3 233 241671 1171.16 887 891 205.6
C 0 207 60087 287.93 887 891 205.6
C 8 128 11539 51.79 887 891 205.6
D 10 157 628024 2731.13 877 855 229.6
D 8 195 302992 1315.72 877 855 229.6
D 10 172 252498 1095.83 877 855 229.6

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