ASTROSAT CZTI

Data Quality Report

Orbit 14124

Creation date: 2024-06-27T16:50:33.472360
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/AS1A04_149T01_9000002082_14124cztM0_level2.evt modeM0/AS1A04_149T01_9000002082_14124cztM0_level2_quad_clean.evt
Size (bytes)621,299,52090,524,160
Size592.5 MB 86.3 MB
Events in quadrant A3,020,478625,430
Events in quadrant B8,970,401459,785
Events in quadrant C3,194,017622,190
Events in quadrant D3,215,468604,907

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129152
B0308051
C0133611
D0135761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6125590.963265%
B6125273444.636735%
C6125500.816327%
D6125621.012245%

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 7256 6127 0 0 0.00% 0.00%
B 7256 6127 1865 1865 25.70% 30.44%
C 7256 6127 0 0 0.00% 0.00%
D 7256 6127 12 12 0.17% 0.20%

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 12 189 66675 429.05 764 749 153.7
A 0 226 6849 39.7 764 749 153.7
A 2 79 6751 39.06 764 749 153.7
B 0 85 6527972 57822.46 604 590 112.9
B 0 189 22679 195.67 604 590 112.9
B 4 142 17637 151.01 604 590 112.9
C 3 233 281535 1665.0 741 745 168.6
C 10 22 15161 85.48 741 745 168.6
C 13 61 5415 27.69 741 745 168.6
D 1 52 157305 889.01 742 723 176.1
D 8 195 118521 668.81 742 723 176.1
D 2 152 71318 400.81 742 723 176.1

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