ASTROSAT CZTI

Data Quality Report

Orbit 28192

Creation date: 2024-06-27T19:49:00.376686
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_090T16_9000004070_28192cztM0_level2.evt modeM0/AS1A10_090T16_9000004070_28192cztM0_level2_quad_clean.evt
Size (bytes)562,616,64085,449,600
Size536.6 MB 81.5 MB
Events in quadrant A3,490,500541,382
Events in quadrant B3,293,792553,613
Events in quadrant C3,670,633526,541
Events in quadrant D6,115,049484,067

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147360
B0143160
C0154110
D0231000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6908520.752750%
B6909370.535533%
C69081452.099016%
D690878511.363636%

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 7893 6909 9 9 0.11% 0.13%
B 7894 6910 3 3 0.04% 0.04%
C 7893 6908 13 13 0.16% 0.19%
D 7893 6909 607 607 7.69% 8.79%

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 12 16 234596 1401.46 830 810 166.8
A 12 194 41393 243.28 830 810 166.8
A 8 192 12078 67.55 830 810 166.8
B 12 111 19711 121.46 827 804 155.7
B 11 111 18064 110.88 827 804 155.7
B 14 111 16532 101.04 827 804 155.7
C 3 233 396284 2101.35 805 810 188.2
C 14 238 130759 690.48 805 810 188.2
C 15 208 8469 40.7 805 810 188.2
D 1 52 1383207 7472.37 779 759 185.0
D 7 80 995563 5377.09 779 759 185.0
D 5 222 496491 2679.52 779 759 185.0

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