ASTROSAT CZTI

Data Quality Report

Orbit 32963

Creation date: 2024-06-27T20:43:56.562278
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/AS1C07_001T01_9000004752_32963cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32963cztM0_level2_quad_clean.evt
Size (bytes)544,501,44098,300,160
Size519.3 MB 93.7 MB
Events in quadrant A2,359,731678,026
Events in quadrant B4,131,394644,668
Events in quadrant C2,696,088685,329
Events in quadrant D6,939,189592,293

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107993
B0160282
C0117392
D0244942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A538060.111524%
B538065012.081784%
C5380581.078067%
D538084915.780669%

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 7203 5381 0 0 0.00% 0.00%
B 7203 5380 419 419 5.82% 7.79%
C 7203 5381 45 45 0.62% 0.84%
D 7203 5381 770 770 10.69% 14.31%

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 6 15153 120.44 605 593 120.9
A 13 254 9148 70.77 605 593 120.9
A 3 137 5472 40.36 605 593 120.9
B 5 172 1466443 13444.6 572 558 109.0
B 0 219 107628 982.01 572 558 109.0
B 0 199 94660 863.07 572 558 109.0
C 0 10 303514 2227.02 587 592 136.0
C 1 241 32560 235.02 587 592 136.0
C 14 67 24072 172.62 587 592 136.0
D 8 195 1580959 11000.03 548 535 143.7
D 12 227 1403501 9764.89 548 535 143.7
D 7 223 371607 2582.73 548 535 143.7

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