ASTROSAT CZTI

Data Quality Report

Orbit 30223

Creation date: 2024-06-27T20:12:20.604194
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_007T01_9000004350_30223cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30223cztM0_level2_quad_clean.evt
Size (bytes)320,322,24049,749,120
Size305.5 MB 47.4 MB
Events in quadrant A1,998,772313,069
Events in quadrant B2,982,352322,263
Events in quadrant C2,048,662309,903
Events in quadrant D2,420,918300,952

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080341
B0113192
C082451
D096441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3673401.089028%
B3672912.478214%
C3672731.988017%
D3672531.443355%

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 5013 3674 3 3 0.06% 0.08%
B 5012 3672 0 0 0.00% 0.00%
C 5012 3673 0 0 0.00% 0.00%
D 5012 3673 28 28 0.56% 0.76%

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 8 192 14592 135.67 514 505 103.8
A 13 254 6844 61.05 514 505 103.8
A 3 137 4749 40.87 514 505 103.8
B 6 159 976318 10057.84 510 498 97.0
B 12 111 11534 113.75 510 498 97.0
B 11 111 10343 101.47 510 498 97.0
C 14 238 86207 736.98 496 499 116.3
C 3 233 14670 121.85 496 499 116.3
C 2 114 8628 69.9 496 499 116.3
D 1 52 237976 1991.54 494 484 119.3
D 8 195 114559 956.6 494 484 119.3
D 7 223 110650 923.82 494 484 119.3

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