ASTROSAT CZTI

Data Quality Report

Orbit 19394

Creation date: 2024-06-27T18:02:19.575393
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_208T03_9000002874_19394cztM0_level2.evt modeM0/AS1A05_208T03_9000002874_19394cztM0_level2_quad_clean.evt
Size (bytes)786,625,92076,014,720
Size750.2 MB 72.5 MB
Events in quadrant A3,530,377513,747
Events in quadrant B3,515,972515,917
Events in quadrant C3,479,007484,876
Events in quadrant D12,855,057329,674

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146052
B0145292
C0143072
D0427062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6546961.466544%
B6546991.512374%
C65461131.726245%
D6546421864.436297%

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 7766 6546 0 0 0.00% 0.00%
B 7766 6546 0 0 0.00% 0.00%
C 7766 6546 1 1 0.01% 0.02%
D 7766 6546 3674 3674 47.31% 56.13%

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 9 143 11495 58.52 911 896 181.1
A 5 16 9325 46.54 911 896 181.1
A 13 254 9023 44.87 911 896 181.1
B 12 111 20072 115.66 895 875 166.0
B 11 111 17805 102.01 895 875 166.0
B 14 111 16011 91.2 895 875 166.0
C 14 238 135339 689.18 850 856 195.1
C 3 233 17451 85.04 850 856 195.1
C 13 61 5976 26.24 850 856 195.1
D 10 66 7256099 44194.23 680 660 164.2
D 7 238 2612757 15910.77 680 660 164.2
D 1 52 396175 2409.16 680 660 164.2

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter