ASTROSAT CZTI

Data Quality Report

Orbit 47373

Creation date: 2024-07-02T04:05:56.502560
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/AS1A13_093T25_9000006324_47373cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47373cztM0_level2_quad_clean.evt
Size (bytes)540,771,840106,824,960
Size515.7 MB 101.9 MB
Events in quadrant A7,262,569706,793
Events in quadrant B3,344,068760,680
Events in quadrant C2,876,201715,527
Events in quadrant D6,042,790607,999

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262762
B0141482
C0130672
D0223362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63543896.122128%
B6354641.007240%
C6354160.251810%
D63545087.994964%

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 7559 6355 234 234 3.10% 3.68%
B 7559 6354 9 9 0.12% 0.14%
C 7559 6355 1 1 0.01% 0.02%
D 7559 6355 467 467 6.18% 7.35%

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 3665944 23859.71 731 717 153.6
A 9 191 675807 4394.67 731 717 153.6
A 9 240 75897 489.4 731 717 153.6
B 0 200 149806 1016.11 743 721 146.7
B 4 171 109808 743.5 743 721 146.7
B 0 190 39748 265.99 743 721 146.7
C 1 3 19033 107.49 723 728 170.3
C 0 207 16188 90.78 723 728 170.3
C 3 233 14578 81.33 723 728 170.3
D 2 165 2445216 13736.56 696 674 178.0
D 12 2 408833 2293.56 696 674 178.0
D 11 192 211048 1182.15 696 674 178.0

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