ASTROSAT CZTI

Data Quality Report

Orbit 05871

Creation date: 2024-06-27T15:00:15.411680
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/AS1G06_033T01_9000000760_05871cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05871cztM0_level2_quad_clean.evt
Size (bytes)388,964,16063,645,120
Size370.9 MB 60.7 MB
Events in quadrant A2,588,604385,628
Events in quadrant B2,709,231386,117
Events in quadrant C2,575,761386,110
Events in quadrant D3,507,758360,104

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118392
B0120061
C0118021
D0145641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5855140.239112%
B5855160.273271%
C585560.102477%
D58551372.339880%

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 6785 5856 0 0 0.00% 0.00%
B 6785 5856 1 1 0.01% 0.02%
C 6785 5856 0 0 0.00% 0.00%
D 6785 5856 94 94 1.39% 1.61%

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 0 226 6564 42.63 671 658 138.5
A 12 194 6493 42.12 671 658 138.5
A 13 254 4149 25.2 671 658 138.5
B 0 219 30047 223.15 678 664 131.7
B 15 204 15777 114.78 678 664 131.7
B 12 111 12362 88.84 678 664 131.7
C 8 128 11562 70.18 654 659 155.4
C 8 112 5504 31.19 654 659 155.4
C 13 61 5170 29.04 654 659 155.4
D 2 152 423150 2626.84 645 626 160.8
D 13 105 286768 1778.95 645 626 160.8
D 2 136 147134 910.84 645 626 160.8

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