ASTROSAT CZTI

Data Quality Report

Orbit 13760

Creation date: 2024-06-27T16:45:43.193906
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_062T01_9000002038_13760cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13760cztM0_level2_quad_clean.evt
Size (bytes)532,558,08086,437,440
Size507.9 MB 82.4 MB
Events in quadrant A3,446,782537,716
Events in quadrant B3,700,260530,255
Events in quadrant C3,293,616562,937
Events in quadrant D5,238,049523,951

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145943
B0154302
C0139272
D0200412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6631691.040567%
B6631871.312019%
C6631400.603227%
D66314426.665661%

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 7632 6633 15 15 0.20% 0.23%
B 7632 6633 9 9 0.12% 0.14%
C 7632 6633 1 1 0.01% 0.02%
D 7632 6633 336 336 4.40% 5.07%

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 0 23 163434 961.86 827 808 169.1
A 15 69 37567 217.41 827 808 169.1
A 1 162 23442 133.87 827 808 169.1
B 0 219 301998 1923.6 826 806 156.6
B 4 216 37694 235.59 826 806 156.6
B 3 64 30502 189.66 826 806 156.6
C 3 233 94936 491.03 820 824 191.7
C 13 61 5772 25.81 820 824 191.7
C 14 234 3662 14.8 820 824 191.7
D 5 222 1863593 9566.78 797 774 194.7
D 10 157 142517 727.94 797 774 194.7
D 13 249 111737 569.87 797 774 194.7

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