ASTROSAT CZTI

Data Quality Report

Orbit 29411

Creation date: 2024-06-27T20:03:50.536670
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_102T11_9000004230_29411cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29411cztM0_level2_quad_clean.evt
Size (bytes)571,348,80098,507,520
Size544.9 MB 93.9 MB
Events in quadrant A3,065,523647,385
Events in quadrant B3,328,561671,309
Events in quadrant C3,786,780631,504
Events in quadrant D6,698,677596,427

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130222
B0138302
C0154892
D0241952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A625480.127918%
B6254420.671570%
C62541021.630956%
D6254103116.485449%

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 7534 6255 0 0 0.00% 0.00%
B 7534 6255 1 1 0.01% 0.02%
C 7534 6255 1 1 0.01% 0.02%
D 7534 6255 787 787 10.45% 12.58%

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 11271 66.47 794 779 157.8
A 3 137 7222 40.82 794 779 157.8
A 0 226 6704 37.54 794 779 157.8
B 0 229 156079 1045.66 794 775 148.5
B 5 255 43928 290.55 794 775 148.5
B 12 111 17699 113.95 794 775 148.5
C 3 233 599267 3399.88 760 767 176.0
C 14 238 132347 747.46 760 767 176.0
C 10 9 61264 343.66 760 767 176.0
D 1 52 1485584 8849.41 714 695 167.8
D 12 33 824649 4910.47 714 695 167.8
D 7 80 798867 4756.82 714 695 167.8

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