ASTROSAT CZTI

Data Quality Report

Orbit 47249

Creation date: 2024-06-27T23:33:24.305122
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/AS1C09_005T01_9000006304_47249cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47249cztM0_level2_quad_clean.evt
Size (bytes)512,579,520109,987,200
Size488.8 MB 104.9 MB
Events in quadrant A7,338,270712,513
Events in quadrant B3,400,411742,058
Events in quadrant C3,058,964734,969
Events in quadrant D4,638,087657,311

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271060
B0148510
C0143710
D0186390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69373364.843592%
B69372153.099322%
C6938550.792736%
D69383525.073508%

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 6937 6937 10 10 0.14% 0.14%
B 6937 6937 16 16 0.23% 0.23%
C 6938 6938 4 4 0.06% 0.06%
D 6938 6938 281 281 4.05% 4.05%

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 10 83 3536250 21836.08 775 757 161.9
A 9 191 770647 4755.03 775 757 161.9
A 14 248 25671 153.87 775 757 161.9
B 0 200 77087 503.19 774 750 151.7
B 5 32 63380 412.84 774 750 151.7
B 0 198 55918 363.65 774 750 151.7
C 14 254 22906 121.74 772 774 181.8
C 0 207 17653 92.84 772 774 181.8
C 3 233 8566 42.86 772 774 181.8
D 12 1 651985 3409.1 764 738 191.0
D 1 47 531353 2777.62 764 738 191.0
D 12 2 179424 935.37 764 738 191.0

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