ASTROSAT CZTI

Data Quality Report

Orbit 31067

Creation date: 2024-06-27T20:22:58.452851
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/AS1C06_002T01_9000004490_31067cztM0_level2.evt modeM0/AS1C06_002T01_9000004490_31067cztM0_level2_quad_clean.evt
Size (bytes)596,367,360122,685,120
Size568.7 MB 117.0 MB
Events in quadrant A3,384,201822,192
Events in quadrant B5,841,599811,394
Events in quadrant C3,729,077799,042
Events in quadrant D4,607,594770,681

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151352
B0228593
C0159052
D0187322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7359230.312542%
B73591942.636228%
C73591862.527517%
D73591952.649817%

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 8834 7361 0 0 0.00% 0.00%
B 8834 7361 37 37 0.42% 0.50%
C 8834 7361 31 31 0.35% 0.42%
D 8834 7361 98 98 1.11% 1.33%

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 13517 72.32 876 855 175.1
A 3 137 8795 45.35 876 855 175.1
A 0 226 7263 36.6 876 855 175.1
B 6 159 2165905 13294.63 870 848 162.9
B 5 172 137186 837.19 870 848 162.9
B 0 190 26081 154.94 870 848 162.9
C 0 10 224783 1119.3 851 855 200.1
C 14 238 134622 668.63 851 855 200.1
C 2 114 17836 84.88 851 855 200.1
D 8 195 715893 3586.19 846 825 199.4
D 13 249 431752 2161.17 846 825 199.4
D 13 174 92621 460.37 846 825 199.4

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