ASTROSAT CZTI

Data Quality Report

Orbit 03753

Creation date: 2024-06-27T14:33:15.363824
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/AS1G05_248T01_9000000486_03753cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03753cztM0_level2_quad_clean.evt
Size (bytes)720,892,80085,642,560
Size687.5 MB 81.7 MB
Events in quadrant A4,243,837546,214
Events in quadrant B4,368,401547,438
Events in quadrant C3,473,589543,385
Events in quadrant D9,242,729437,780

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174262
B0179431
C0157141
D0324231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74351942.609280%
B74352273.053127%
C7435730.981843%
D7435231831.176866%

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 7470 7436 59 59 0.79% 0.79%
B 7470 7436 61 61 0.82% 0.82%
C 7470 7436 26 26 0.35% 0.35%
D 7470 7436 2064 2064 27.63% 27.76%

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 0 118 399409 2219.57 868 848 179.6
A 13 251 118345 654.34 868 848 179.6
A 8 15 108910 601.79 868 848 179.6
B 15 204 299573 1724.83 878 857 173.2
B 4 81 206169 1185.5 878 857 173.2
B 14 167 167457 961.97 878 857 173.2
C 7 238 40428 197.99 848 848 199.9
C 1 16 40420 197.95 848 848 199.9
C 2 53 20467 98.14 848 848 199.9
D 10 246 3653849 21361.39 702 679 171.0
D 1 20 1365672 7981.6 702 679 171.0
D 8 112 1146879 6702.24 702 679 171.0

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
Veto Counter