ASTROSAT CZTI

Data Quality Report

Orbit 32714

Creation date: 2024-06-27T20:41:09.166100
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_123T04_9000004726_32714cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32714cztM0_level2_quad_clean.evt
Size (bytes)535,337,28073,612,800
Size510.5 MB 70.2 MB
Events in quadrant A5,896,874453,084
Events in quadrant B3,131,615496,812
Events in quadrant C2,634,960479,776
Events in quadrant D4,203,724441,245

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210343
B0124422
C0109652
D0159272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A510880515.759593%
B51081282.505873%
C5108280.548160%
D51082865.599060%

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 7201 5108 520 520 7.22% 10.18%
B 7201 5109 71 71 0.99% 1.39%
C 7201 5109 32 32 0.44% 0.63%
D 7201 5109 244 244 3.39% 4.78%

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 15 249 3074752 25692.05 600 589 119.7
A 15 237 283530 2364.65 600 589 119.7
A 7 16 199334 1660.99 600 589 119.7
B 4 251 441868 3755.76 635 625 117.5
B 3 26 52972 445.57 635 625 117.5
B 4 206 35910 300.34 635 625 117.5
C 9 236 199758 1427.12 613 620 139.5
C 0 10 15224 104.66 613 620 139.5
C 7 247 7005 45.76 613 620 139.5
D 7 80 407131 2821.55 600 587 144.1
D 12 218 326520 2262.08 600 587 144.1
D 2 249 290347 2011.03 600 587 144.1

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