ASTROSAT CZTI

Data Quality Report

Orbit 09269

Creation date: 2024-06-27T15:43:40.395154
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/AS1A03_091T06_9000001302_09269cztM0_level2.evt modeM0/AS1A03_091T06_9000001302_09269cztM0_level2_quad_clean.evt
Size (bytes)535,728,96086,204,160
Size510.9 MB 82.2 MB
Events in quadrant A5,095,894526,764
Events in quadrant B3,472,031543,945
Events in quadrant C3,254,140532,192
Events in quadrant D3,916,353508,900

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020089186
B015025107
C014703105
D016557109

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71493955.525248%
B71581552.165409%
C71581121.564683%
D71622263.155543%

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 7505 7209 154 154 2.05% 2.14%
B 7505 7210 9 9 0.12% 0.12%
C 7505 7209 0 0 0.00% 0.00%
D 7505 7209 95 95 1.27% 1.32%

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 1082556 6212.89 842 823 174.1
A 5 16 642537 3685.66 842 823 174.1
A 4 2 49273 278.27 842 823 174.1
B 0 214 80866 480.98 854 832 166.4
B 8 234 24637 143.06 854 832 166.4
B 12 111 17994 103.14 854 832 166.4
C 9 68 20480 101.09 828 834 194.3
C 13 61 6341 28.34 828 834 194.3
C 8 222 3035 11.33 828 834 194.3
D 12 233 354257 1582.49 819 801 223.4
D 1 52 203219 906.26 819 801 223.4
D 2 136 99093 440.07 819 801 223.4

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