ASTROSAT CZTI

Data Quality Report

Orbit 08630

Creation date: 2024-06-27T15:35:12.891910
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/AS1G07_024T01_9000001206_08630cztM0_level2.evt modeM0/AS1G07_024T01_9000001206_08630cztM0_level2_quad_clean.evt
Size (bytes)476,933,760134,596,800
Size454.8 MB 128.4 MB
Events in quadrant A3,318,532879,631
Events in quadrant B3,703,364911,181
Events in quadrant C3,456,473898,696
Events in quadrant D3,448,125857,848

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156113
B0162892
C0159262
D0161862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76071471.932431%
B76072092.747469%
C7607590.775601%
D76071261.656369%

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 7822 7608 3 3 0.04% 0.04%
B 7822 7607 15 15 0.19% 0.20%
C 7822 7607 5 5 0.06% 0.07%
D 7822 7608 43 43 0.55% 0.57%

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 15 174 29756 166.25 850 829 174.0
A 13 248 18401 100.99 850 829 174.0
A 0 226 7996 41.19 850 829 174.0
B 11 51 153104 932.82 866 844 163.2
B 0 214 59247 357.81 866 844 163.2
B 0 219 48656 292.92 866 844 163.2
C 8 208 159784 826.26 836 839 192.4
C 12 4 10417 49.79 836 839 192.4
C 14 64 8193 38.23 836 839 192.4
D 10 253 146327 713.62 827 798 203.9
D 9 64 58832 284.58 827 798 203.9
D 2 234 30204 144.2 827 798 203.9

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