ASTROSAT CZTI

Data Quality Report

Orbit 10419

Creation date: 2024-06-27T15:59:11.063753
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/AS1G07_046T01_9000001506_10419cztM0_level2.evt modeM0/AS1G07_046T01_9000001506_10419cztM0_level2_quad_clean.evt
Size (bytes)472,901,76076,343,040
Size451.0 MB 72.8 MB
Events in quadrant A3,432,453480,078
Events in quadrant B3,891,673487,357
Events in quadrant C2,672,851483,345
Events in quadrant D3,922,517446,739

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142691
B01545911
C0120261
D0153411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5922891.502871%
B59202814.746622%
C5922140.236407%
D59222103.546099%

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 7022 5923 34 34 0.48% 0.57%
B 7022 5922 171 171 2.44% 2.89%
C 7022 5922 1 1 0.01% 0.02%
D 7022 5923 151 151 2.15% 2.55%

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 13 251 721041 5086.43 697 685 141.6
A 1 162 13033 87.19 697 685 141.6
A 0 226 6430 40.57 697 685 141.6
B 4 239 1016237 7596.14 699 683 133.7
B 10 245 83663 620.67 699 683 133.7
B 0 214 43033 316.77 699 683 133.7
C 13 61 5160 28.03 683 687 159.6
C 14 234 5009 27.08 683 687 159.6
C 11 7 3818 19.62 683 687 159.6
D 2 33 630090 3890.71 664 644 161.8
D 8 195 520579 3213.8 664 644 161.8
D 1 20 160605 988.74 664 644 161.8

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