ASTROSAT CZTI

Data Quality Report

Orbit 40517

Creation date: 2024-06-27T22:17:03.810287
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_070T01_9000005544_40517cztM0_level2.fits modeM0/AS1T05_070T01_9000005544_40517cztM0_level2_quad_clean.evt
Size (bytes)302,310,72091,128,960
Size288.3 MB 86.9 MB
Events in quadrant A2,850,535623,353
Events in quadrant B2,629,740644,414
Events in quadrant C2,669,946605,695
Events in quadrant D2,632,098519,165

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115202
B0111851
C0111491
D0114411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A523260.114679%
B5232270.516055%
C5232450.860092%
D52324157.931957%

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 7175 5233 4 4 0.06% 0.08%
B 7175 5233 16 16 0.22% 0.31%
C 7175 5233 39 39 0.54% 0.75%
D 7175 5233 30 30 0.42% 0.57%

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 442540 3628.84 588 578 121.8
A 12 189 99846 815.06 588 578 121.8
A 2 79 17096 135.63 588 578 121.8
B 3 112 103716 914.05 584 569 112.8
B 0 230 67411 592.33 584 569 112.8
B 4 171 65208 572.81 584 569 112.8
C 15 214 228277 1700.66 567 570 133.9
C 14 254 168579 1254.8 567 570 133.9
C 10 20 36218 266.24 567 570 133.9
D 12 6 158680 1185.78 541 525 133.4
D 12 191 150777 1126.52 541 525 133.4
D 2 250 65987 490.81 541 525 133.4

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