ASTROSAT CZTI

Data Quality Report

Orbit 47731

Creation date: 2024-07-26T15:33:36.402919
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/AS1T05_213T01_9000006344_47731cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47731cztM0_level2_quad_clean.evt
Size (bytes)578,943,360112,478,400
Size552.1 MB 107.3 MB
Events in quadrant A7,587,630749,578
Events in quadrant B3,426,490784,585
Events in quadrant C3,327,271757,687
Events in quadrant D6,521,281604,312

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275082
B0154692
C0154572
D0245623

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73242913.973239%
B7324911.242490%
C7325420.573379%
D7324109114.896232%

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 8954 7326 113 113 1.26% 1.54%
B 8954 7326 29 29 0.32% 0.40%
C 8955 7327 34 34 0.38% 0.46%
D 8954 7326 980 980 10.94% 13.38%

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 4286926 26225.83 788 772 163.4
A 9 191 119920 729.03 788 772 163.4
A 14 248 64212 388.17 788 772 163.4
B 0 200 126615 806.11 791 766 156.1
B 0 245 77248 489.89 791 766 156.1
B 5 255 38544 241.98 791 766 156.1
C 12 2 178314 966.73 784 787 183.6
C 14 254 76842 414.16 784 787 183.6
C 12 249 14818 76.41 784 787 183.6
D 2 165 3357915 18168.35 734 710 184.8
D 2 249 95371 512.28 734 710 184.8
D 10 181 90120 483.86 734 710 184.8

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