ASTROSAT CZTI

Data Quality Report

Orbit 05718

Creation date: 2024-06-27T14:58:19.836866
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/AS1A02_098T01_9000000736_05718cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05718cztM0_level2_quad_clean.evt
Size (bytes)438,134,40088,862,400
Size417.8 MB 84.7 MB
Events in quadrant A2,895,211574,032
Events in quadrant B3,217,293576,232
Events in quadrant C2,925,433575,797
Events in quadrant D3,821,434544,387

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125012
B0131721
C0127311
D0152238

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60181492.475906%
B60181432.376205%
C60181302.160186%
D60152383.956775%

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 7158 6018 0 0 0.00% 0.00%
B 7158 6019 2 2 0.03% 0.03%
C 7158 6019 13 13 0.18% 0.22%
D 7158 6018 88 88 1.23% 1.46%

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 12 194 7470 44.1 749 732 152.8
A 0 226 7274 42.82 749 732 152.8
A 0 50 6118 35.25 749 732 152.8
B 0 214 57433 397.89 748 731 142.5
B 15 204 51593 356.91 748 731 142.5
B 0 219 43672 301.32 748 731 142.5
C 9 16 106800 642.87 718 720 165.0
C 1 16 7845 43.18 718 720 165.0
C 14 67 6533 35.23 718 720 165.0
D 12 221 471393 2639.25 725 703 178.3
D 2 152 237160 1325.86 725 703 178.3
D 10 15 97799 544.44 725 703 178.3

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