ASTROSAT CZTI

Data Quality Report

Orbit 03644

Creation date: 2024-06-27T14:31:52.554009
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_234T02_9000000474_03644cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03644cztM0_level2_quad_clean.evt
Size (bytes)501,327,36070,925,760
Size478.1 MB 67.6 MB
Events in quadrant A3,682,562417,131
Events in quadrant B4,024,607418,586
Events in quadrant C3,307,879415,473
Events in quadrant D3,688,058404,292

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154673
B0163572
C0147932
D0160812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70641922.718007%
B70642313.270102%
C70641311.854473%
D70642253.185164%

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 8929 7065 23 23 0.26% 0.33%
B 8929 7065 44 44 0.49% 0.62%
C 8929 7066 17 17 0.19% 0.24%
D 8929 7065 111 111 1.24% 1.57%

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 328868 1926.83 832 813 170.3
A 8 192 66882 388.06 832 813 170.3
A 13 164 30977 177.17 832 813 170.3
B 4 81 319076 1940.37 841 817 164.0
B 15 204 184031 1117.02 841 817 164.0
B 5 172 85853 518.45 841 817 164.0
C 9 247 119279 627.99 808 809 188.6
C 1 16 10401 50.85 808 809 188.6
C 13 61 6977 32.7 808 809 188.6
D 1 84 295658 1518.8 806 782 194.2
D 13 239 143113 733.1 806 782 194.2
D 13 223 115090 588.76 806 782 194.2

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