ASTROSAT CZTI

Data Quality Report

Orbit 47257

Creation date: 2024-06-27T23:33:29.991489
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/AS1C09_005T01_9000006304_47257cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47257cztM0_level2_quad_clean.evt
Size (bytes)472,708,800114,117,120
Size450.8 MB 108.8 MB
Events in quadrant A7,622,514742,042
Events in quadrant B3,361,482793,755
Events in quadrant C2,920,012763,955
Events in quadrant D3,086,568699,380

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272342
B0143502
C0132512
D0139302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65404236.467890%
B6540751.146789%
C654050.076453%
D6540260.397554%

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 7795 6541 241 241 3.09% 3.68%
B 7795 6541 27 27 0.35% 0.41%
C 7795 6540 0 0 0.00% 0.00%
D 7795 6540 8 8 0.10% 0.12%

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 10 83 3685556 24439.25 731 714 150.8
A 9 191 1099655 7288.59 731 714 150.8
A 13 254 11519 71.66 731 714 150.8
B 5 172 109504 773.54 744 722 140.6
B 0 200 95524 674.13 744 722 140.6
B 4 21 47876 335.31 744 722 140.6
C 3 233 5582 27.77 745 748 174.1
C 13 61 4928 24.01 745 748 174.1
C 1 3 4852 23.58 745 748 174.1
D 1 47 117640 634.16 738 716 184.4
D 13 23 44125 235.44 738 716 184.4
D 5 171 37309 198.47 738 716 184.4

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