ASTROSAT CZTI

Data Quality Report

Orbit 28244

Creation date: 2024-06-27T19:49:35.749230
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/AS1A10_067T01_9000004076_28244cztM0_level2.evt modeM0/AS1A10_067T01_9000004076_28244cztM0_level2_quad_clean.evt
Size (bytes)522,313,92080,985,600
Size498.1 MB 77.2 MB
Events in quadrant A3,125,885511,858
Events in quadrant B3,175,779517,676
Events in quadrant C3,157,375492,979
Events in quadrant D5,914,528472,699

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134710
B0135520
C0134490
D0219490

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65461422.169264%
B65471412.153658%
C65471642.504964%
D65475818.874294%

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 6916 6547 0 0 0.00% 0.00%
B 6917 6548 0 0 0.00% 0.00%
C 6917 6547 0 0 0.00% 0.00%
D 6917 6548 445 445 6.43% 6.80%

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 9485 53.1 808 791 163.7
A 3 137 8230 45.44 808 791 163.7
A 0 226 6808 36.75 808 791 163.7
B 12 111 19722 121.52 795 774 155.9
B 0 183 18737 115.21 795 774 155.9
B 11 111 17907 109.88 795 774 155.9
C 14 238 124142 677.66 770 775 182.0
C 3 233 22017 116.68 770 775 182.0
C 9 54 6229 29.96 770 775 182.0
D 5 222 1423790 7925.54 761 739 179.6
D 1 52 1019610 5674.5 761 739 179.6
D 8 195 265224 1473.02 761 739 179.6

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