ASTROSAT CZTI

Data Quality Report

Orbit 11005

Creation date: 2024-06-27T16:06:49.958291
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/AS1G08_027T06_9000001594_11005cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_11005cztM0_level2_quad_clean.evt
Size (bytes)531,993,60092,004,480
Size507.3 MB 87.7 MB
Events in quadrant A3,506,065592,918
Events in quadrant B4,830,676577,733
Events in quadrant C3,139,098580,093
Events in quadrant D4,163,622550,742

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151562
B0189196
C0143321
D0170311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6954711.020995%
B69534566.558320%
C6954230.330745%
D69541291.855047%

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 7074 6955 22 22 0.31% 0.32%
B 7074 6954 296 296 4.18% 4.26%
C 7074 6955 1 1 0.01% 0.01%
D 7074 6955 36 36 0.51% 0.52%

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 5 306996 1803.31 825 806 169.8
A 0 226 7593 39.97 825 806 169.8
A 11 29 7213 37.73 825 806 169.8
B 4 239 1480604 9469.73 811 792 156.3
B 0 219 51555 324.85 811 792 156.3
B 15 204 42930 269.65 811 792 156.3
C 0 207 21750 112.61 794 796 186.1
C 8 128 7610 36.62 794 796 186.1
C 13 61 6047 28.22 794 796 186.1
D 11 129 581864 3021.94 787 764 192.3
D 8 195 175549 908.95 787 764 192.3
D 1 52 120115 620.67 787 764 192.3

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