ASTROSAT CZTI

Data Quality Report

Orbit 03150

Creation date: 2024-06-27T14:25:16.236923
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_167T02_9000000432_03150cztM0_level2.evt modeM0/AS1G05_167T02_9000000432_03150cztM0_level2_quad_clean.evt
Size (bytes)501,514,56090,933,120
Size478.3 MB 86.7 MB
Events in quadrant A3,012,017590,064
Events in quadrant B3,438,021584,118
Events in quadrant C4,183,809579,445
Events in quadrant D4,115,690548,830

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134962
B0146171
C0168391
D0169101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6471240.370885%
B64711291.993510%
C64712904.481533%
D64712533.909751%

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 7401 6472 1 1 0.01% 0.02%
B 7401 6472 86 86 1.16% 1.33%
C 7401 6472 238 238 3.22% 3.68%
D 7401 6472 224 224 3.03% 3.46%

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 3 1 89745 581.16 738 723 153.2
A 14 249 60646 391.19 738 723 153.2
A 12 247 16559 103.38 738 723 153.2
B 5 70 296431 2035.85 747 729 145.2
B 4 81 109673 750.06 747 729 145.2
B 3 0 77092 525.74 747 729 145.2
C 14 223 1302268 7784.73 712 716 167.2
C 1 192 54336 320.71 712 716 167.2
C 6 80 18831 108.35 712 716 167.2
D 12 233 784337 4551.81 703 684 172.2
D 13 223 200824 1162.5 703 684 172.2
D 2 136 141484 817.83 703 684 172.2

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