ASTROSAT CZTI

Data Quality Report

Orbit 03420

Creation date: 2024-06-27T14:28:46.890517
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_167T01_9000000456_03420cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03420cztM0_level2_quad_clean.evt
Size (bytes)561,640,32097,142,400
Size535.6 MB 92.6 MB
Events in quadrant A4,091,637609,078
Events in quadrant B3,863,255611,806
Events in quadrant C5,001,228600,792
Events in quadrant D3,535,456588,916

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173631
B0164640
C0201350
D0162690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7631410.537282%
B7631791.035251%
C76312343.066440%
D7631330.432447%

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 7631 7631 1 1 0.01% 0.01%
B 7631 7631 22 22 0.29% 0.29%
C 7631 7631 164 164 2.15% 2.15%
D 7631 7631 23 23 0.30% 0.30%

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 15 249 391419 2158.62 882 864 180.9
A 14 249 266622 1468.86 882 864 180.9
A 0 118 16484 86.33 882 864 180.9
B 5 70 126720 708.74 898 875 177.6
B 15 204 104677 584.6 898 875 177.6
B 14 167 87158 485.93 898 875 177.6
C 7 220 1448533 7244.15 853 858 199.8
C 1 192 133527 663.87 853 858 199.8
C 14 223 46000 225.89 853 858 199.8
D 9 85 142165 685.76 851 825 206.1
D 13 223 92670 445.62 851 825 206.1
D 2 37 34915 165.4 851 825 206.1

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