ASTROSAT CZTI

Data Quality Report

Orbit 19339

Creation date: 2024-06-27T18:01:35.349287
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/AS1A05_204T01_9000002856_19339cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19339cztM0_level2_quad_clean.evt
Size (bytes)562,049,28096,310,080
Size536.0 MB 91.8 MB
Events in quadrant A3,033,142656,308
Events in quadrant B3,197,316654,730
Events in quadrant C3,566,179626,831
Events in quadrant D6,815,897556,655

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127651
B0132391
C0145431
D0244561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6040971.605960%
B60411312.168515%
C60411772.929978%
D6041111718.490316%

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 7295 6041 0 0 0.00% 0.00%
B 7296 6042 19 19 0.26% 0.31%
C 7296 6041 1 1 0.01% 0.02%
D 7296 6041 998 998 13.68% 16.52%

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 0 226 6894 38.94 786 771 157.2
A 12 194 5885 32.53 786 771 157.2
A 3 137 5795 31.95 786 771 157.2
B 3 64 54244 369.92 775 758 144.6
B 0 190 30781 207.65 775 758 144.6
B 0 229 26273 176.47 775 758 144.6
C 3 233 504139 2870.02 754 760 175.4
C 14 238 117390 664.97 754 760 175.4
C 13 61 5327 26.04 754 760 175.4
D 7 238 2705642 15487.08 729 709 174.7
D 10 66 975622 5581.86 729 709 174.7
D 1 52 222020 1267.11 729 709 174.7

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