ASTROSAT CZTI

Data Quality Report

Orbit 08168

Creation date: 2024-06-27T15:28:52.178151
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/AS1G07_043T01_9000001126_08168cztM0_level2.evt modeM0/AS1G07_043T01_9000001126_08168cztM0_level2_quad_clean.evt
Size (bytes)524,905,92095,886,720
Size500.6 MB 91.4 MB
Events in quadrant A3,857,930584,933
Events in quadrant B3,871,133595,710
Events in quadrant C3,694,353602,743
Events in quadrant D3,942,757577,368

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170703
B0168192
C0164932
D0171692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78101041.331626%
B78101561.997439%
C78101201.536492%
D78101181.510883%

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 8350 7813 0 0 0.00% 0.00%
B 8350 7813 17 17 0.20% 0.22%
C 8350 7813 0 0 0.00% 0.00%
D 8350 7813 29 29 0.35% 0.37%

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 15 79 270265 1402.35 928 905 192.1
A 0 226 8945 41.86 928 905 192.1
A 13 254 8618 40.16 928 905 192.1
B 10 16 68941 381.38 936 912 178.4
B 4 81 51393 283.01 936 912 178.4
B 0 214 44226 242.83 936 912 178.4
C 1 16 103645 483.88 914 918 212.3
C 8 128 11997 52.19 914 918 212.3
C 13 61 7175 29.47 914 918 212.3
D 5 233 235317 1047.59 910 883 223.8
D 12 227 58383 256.94 910 883 223.8
D 12 233 53751 236.24 910 883 223.8

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