ASTROSAT CZTI

Data Quality Report

Orbit 03503

Creation date: 2024-06-27T14:30:15.091203
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/AS1G05_192T01_9000000466_03503cztM0_level2.evt modeM0/AS1G05_192T01_9000000466_03503cztM0_level2_quad_clean.evt
Size (bytes)397,108,80078,909,120
Size378.7 MB 75.3 MB
Events in quadrant A2,849,462498,800
Events in quadrant B3,084,126503,773
Events in quadrant C2,994,999502,039
Events in quadrant D2,708,212484,367

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122802
B0129311
C0126081
D0120581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5722941.642782%
B5722550.961202%
C5722560.978679%
D5722440.768962%

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 7067 5723 33 33 0.47% 0.58%
B 7067 5723 2 2 0.03% 0.03%
C 7067 5723 12 12 0.17% 0.21%
D 7067 5723 14 14 0.20% 0.24%

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 8 15 111552 796.04 688 676 139.3
A 0 50 45204 319.69 688 676 139.3
A 14 238 16807 115.81 688 676 139.3
B 15 204 238423 1762.22 707 692 134.9
B 4 81 34023 247.07 707 692 134.9
B 4 200 22770 163.66 707 692 134.9
C 15 208 135200 851.63 684 689 157.9
C 1 16 60169 376.58 684 689 157.9
C 7 220 56411 352.79 684 689 157.9
D 13 223 55154 335.58 678 661 162.4
D 13 239 22138 132.26 678 661 162.4
D 12 110 17162 101.62 678 661 162.4

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
Veto Counter