ASTROSAT CZTI

Data Quality Report

Orbit 38033

Creation date: 2024-06-27T21:47:35.007626
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/AS1A11_024T01_9000005358_38033cztM0_level2.fits modeM0/AS1A11_024T01_9000005358_38033cztM0_level2_quad_clean.evt
Size (bytes)372,214,08098,573,760
Size355.0 MB 94.0 MB
Events in quadrant A3,170,699669,374
Events in quadrant B3,193,567670,929
Events in quadrant C3,309,347646,420
Events in quadrant D3,658,443597,300

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129012
B0131381
C0134041
D0145041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5734230.401116%
B57341362.371817%
C57341131.970701%
D5734991.726543%

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 7047 5735 5 5 0.07% 0.09%
B 7047 5735 107 107 1.52% 1.87%
C 7047 5735 89 89 1.26% 1.55%
D 7047 5735 82 82 1.16% 1.43%

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 360245 2698.74 659 647 133.2
A 12 16 203340 1521.18 659 647 133.2
A 12 194 33918 249.69 659 647 133.2
B 5 184 212366 1665.0 652 636 127.2
B 5 200 112452 879.3 652 636 127.2
B 5 172 110829 866.54 652 636 127.2
C 1 23 529295 3553.35 636 641 148.8
C 15 214 238895 1601.42 636 641 148.8
C 14 67 17649 114.32 636 641 148.8
D 12 227 345519 2202.84 636 619 156.6
D 2 250 231785 1476.43 636 619 156.6
D 7 223 175678 1118.08 636 619 156.6

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