ASTROSAT CZTI

Data Quality Report

Orbit 05524

Creation date: 2024-06-27T14:56:16.169835
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_199T01_9000000708_05524cztM0_level2.evt modeM0/AS1A02_199T01_9000000708_05524cztM0_level2_quad_clean.evt
Size (bytes)466,649,28083,309,760
Size445.0 MB 79.5 MB
Events in quadrant A2,967,754532,989
Events in quadrant B3,966,534523,578
Events in quadrant C3,109,917509,705
Events in quadrant D3,634,799490,978

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01353321
B01602039
C01412349
D01528628

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01342
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6690560.837070%
B66811832.739111%
C6677530.793770%
D6686640.957224%

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 7654 6699 0 0 0.00% 0.00%
B 7654 6699 96 96 1.25% 1.43%
C 7654 6698 3 3 0.04% 0.04%
D 7654 6700 13 13 0.17% 0.19%

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 7576 43.85 768 752 155.6
A 12 194 7542 43.63 768 752 155.6
A 13 6 4022 21.01 768 752 155.6
B 10 16 385533 2602.23 766 748 147.9
B 15 204 373956 2523.93 766 748 147.9
B 15 255 151368 1018.61 766 748 147.9
C 1 241 133329 779.99 733 736 170.0
C 9 221 89752 523.65 733 736 170.0
C 9 247 9894 53.87 733 736 170.0
D 2 63 524815 2889.3 738 713 181.4
D 2 152 179315 984.6 738 713 181.4
D 8 195 51013 277.29 738 713 181.4

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