ASTROSAT CZTI

Data Quality Report

Orbit 20161005_G06_084T01_9000000710_level2

Creation date: 2025-11-06T21:04:18.550892
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/AS1G06_084T01_9000000710cztM0_level2.fits modeM0/AS1G06_084T01_9000000710cztM0_level2_quad_clean.evt
Size (bytes)573,672,960561,677,760
Size547.1 MB 535.7 MB
Events in quadrant A4,001,1523,883,710
Events in quadrant B3,836,7773,849,539
Events in quadrant C3,879,1333,725,277
Events in quadrant D1,415,7561,314,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01470580
B01639560
C01548440
D0809070

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01350
B01350
C01340
D01340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015140
B014880
C015260
D014780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A710468941.258340%
B7107414201.997918%
C7093114692.071027%
D3067210363.377673%

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 97580 73630 0 0 0.00% 0.00%
B 97580 73674 0 0 0.00% 0.00%
C 97580 73531 0 0 0.00% 0.00%
D 37992 31249 0 0 0.00% 0.00%

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 29 3853 10.99 1036 964 262.8
A 7 110 3463 9.51 1036 964 262.8
A 0 30 3098 8.12 1036 964 262.8
B 2 9 3333 11.55 1012 960 205.5
B 12 226 2716 8.55 1012 960 205.5
B 14 254 2650 8.23 1012 960 205.5
C 12 241 2782 6.78 1023 948 270.6
C 1 81 2780 6.77 1023 948 270.6
C 1 80 2740 6.62 1023 948 270.6
D 11 82 1105 6.67 403 365 111.0
D 1 3 1061 6.27 403 365 111.0
D 4 160 1040 6.08 403 365 111.0

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