ASTROSAT CZTI

Data Quality Report

Orbit 03532

Creation date: 2024-06-27T14:30:36.648430
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_045T01_9000000468_03532cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03532cztM0_level2_quad_clean.evt
Size (bytes)503,104,32070,856,640
Size479.8 MB 67.6 MB
Events in quadrant A4,086,847437,357
Events in quadrant B3,458,778440,441
Events in quadrant C4,192,277432,580
Events in quadrant D3,100,825424,912

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163082
B0144361
C0165291
D0134721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58742003.404835%
B5874771.310861%
C58742133.626149%
D58741312.230167%

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 7164 5874 28 28 0.39% 0.48%
B 7164 5874 11 11 0.15% 0.19%
C 7164 5874 133 133 1.86% 2.26%
D 7164 5874 92 92 1.28% 1.57%

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 8 15 1273920 9079.6 682 665 140.2
A 0 50 150155 1066.01 682 665 140.2
A 0 118 18909 130.1 682 665 140.2
B 15 204 334074 2519.88 699 683 132.3
B 8 3 167414 1260.21 699 683 132.3
B 14 167 147855 1112.38 699 683 132.3
C 4 248 1414201 9055.03 674 678 156.1
C 1 16 76693 486.95 674 678 156.1
C 9 54 39840 250.87 674 678 156.1
D 13 70 316951 1967.87 672 653 160.7
D 13 46 85668 528.93 672 653 160.7
D 2 31 55447 340.9 672 653 160.7

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