ASTROSAT CZTI

Data Quality Report

Orbit 20230705_A12_011T26_9000005732_level2

Creation date: 2023-07-07T12:32:16.574270
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/AS1A12_011T26_9000005732cztM0_level2.fits modeM0/AS1A12_011T26_9000005732cztM0_level2_quad_clean.evt
Size (bytes)590,316,480658,365,120
Size563.0 MB 627.9 MB
Events in quadrant A3,511,6124,028,046
Events in quadrant B3,368,7023,989,859
Events in quadrant C3,476,2323,883,981
Events in quadrant D2,911,7723,430,102

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01546540
B01517110
C01355920
D01853190

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02530
B02530
C02540
D02540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013760
B013760
C013760
D013760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A671795320.791914%
B6717813632.028938%
C67179480.071451%
D6717635555.292069%

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 97740 67176 0 0 0.00% 0.00%
B 97740 67124 0 0 0.00% 0.00%
C 97740 67178 0 0 0.00% 0.00%
D 97740 67119 0 0 0.00% 0.00%

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 29 2938 9.11 917 858 228.3
A 7 110 2924 9.05 917 858 228.3
A 9 19 2899 8.94 917 858 228.3
B 2 9 2895 11.7 892 851 174.6
B 5 128 2371 8.7 892 851 174.6
B 3 80 2356 8.62 892 851 174.6
C 1 81 2922 8.69 917 855 237.8
C 3 202 2729 7.88 917 855 237.8
C 1 80 2716 7.82 917 855 237.8
D 10 189 2221 6.49 834 760 225.1
D 7 3 2177 6.29 834 760 225.1
D 4 160 2126 6.07 834 760 225.1

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