ASTROSAT CZTI

Data Quality Report

Orbit 44316

Creation date: 2024-06-27T23:02:02.617747
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/AS1A13_059T01_9000005990_44316cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44316cztM0_level2_quad_clean.evt
Size (bytes)526,138,560111,916,800
Size501.8 MB 106.7 MB
Events in quadrant A4,985,193773,328
Events in quadrant B4,259,846765,517
Events in quadrant C3,223,709765,955
Events in quadrant D6,483,709614,191

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202742
B0171872
C0143182
D0237712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67412633.901498%
B67414536.720071%
C67411031.527963%
D6741109316.214212%

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 7756 6741 3 3 0.04% 0.04%
B 7756 6741 239 239 3.08% 3.55%
C 7756 6741 10 10 0.13% 0.15%
D 7756 6741 928 928 11.96% 13.77%

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 1800151 10850.83 799 782 165.8
A 15 223 49122 291.51 799 782 165.8
A 0 243 33740 198.75 799 782 165.8
B 5 172 746708 4845.52 779 756 153.9
B 4 158 215852 1397.21 779 756 153.9
B 5 255 129006 833.08 779 756 153.9
C 14 254 132713 711.47 786 790 185.4
C 1 3 18456 95.27 786 790 185.4
C 3 233 7121 34.14 786 790 185.4
D 13 249 1713407 9188.92 748 726 186.4
D 13 153 616911 3305.97 748 726 186.4
D 1 20 432952 2318.99 748 726 186.4

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