ASTROSAT CZTI

Data Quality Report

Orbit 28223

Creation date: 2024-06-27T19:49:20.083581
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/AS1A10_045T09_9000004072_28223cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28223cztM0_level2_quad_clean.evt
Size (bytes)227,632,32016,729,920
Size217.1 MB 16.0 MB
Events in quadrant A1,167,02885,879
Events in quadrant B1,453,49085,545
Events in quadrant C1,222,18285,358
Events in quadrant D2,891,16380,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049580
B059000
C051210
D0102300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A233420.085690%
B2335361.541756%
C2335261.113490%
D23352048.736617%

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 2334 2334 0 0 0.00% 0.00%
B 2335 2335 17 17 0.73% 0.73%
C 2335 2335 0 0 0.00% 0.00%
D 2335 2335 145 145 6.21% 6.21%

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 13 254 3860 57.84 301 296 61.6
A 3 137 2899 42.25 301 296 61.6
A 0 226 2550 36.58 301 296 61.6
B 10 245 264853 4501.85 299 292 58.8
B 12 111 7068 115.3 299 292 58.8
B 0 230 6708 109.18 299 292 58.8
C 14 238 48530 679.07 296 299 71.0
C 1 16 8794 119.61 296 299 71.0
C 3 233 8185 111.03 296 299 71.0
D 1 52 1652364 23567.52 289 281 70.1
D 2 250 50659 718.66 289 281 70.1
D 8 195 34176 483.52 289 281 70.1

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