ASTROSAT CZTI

Data Quality Report

Orbit 03591

Creation date: 2024-06-27T14:31:22.999230
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/AS1G05_246T03_9000000470_03591cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03591cztM0_level2_quad_clean.evt
Size (bytes)430,165,44079,626,240
Size410.2 MB 75.9 MB
Events in quadrant A2,805,379498,184
Events in quadrant B3,219,534500,868
Events in quadrant C3,648,598504,127
Events in quadrant D2,942,189485,024

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125702
B0135121
C0150691
D0132061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6060721.188119%
B6060691.138614%
C60603365.544554%
D60601642.706271%

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 7205 6061 0 0 0.00% 0.00%
B 7205 6061 0 0 0.00% 0.00%
C 7205 6061 259 259 3.59% 4.27%
D 7205 6061 79 79 1.10% 1.30%

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 15 54290 373.17 707 691 143.6
A 0 149 19704 132.37 707 691 143.6
A 0 226 9317 60.06 707 691 143.6
B 15 204 310060 2242.78 715 696 137.9
B 4 81 83686 601.65 715 696 137.9
B 0 183 29479 208.67 715 696 137.9
C 7 220 859089 5383.3 686 689 159.5
C 15 208 49644 307.01 686 689 159.5
C 2 53 44578 275.24 686 689 159.5
D 13 223 288747 1741.2 691 672 165.4
D 10 172 27640 163.0 691 672 165.4
D 13 239 9188 51.47 691 672 165.4

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
Veto Counter