ASTROSAT CZTI

Data Quality Report

Orbit 09200

Creation date: 2024-06-27T15:42:37.402656
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/AS1C02_042T02_9000001284_09200cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09200cztM0_level2_quad_clean.evt
Size (bytes)481,786,56089,231,040
Size459.5 MB 85.1 MB
Events in quadrant A4,444,087558,317
Events in quadrant B3,300,671570,594
Events in quadrant C3,079,359557,483
Events in quadrant D3,306,165542,937

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178923
B0142142
C0139172
D0146592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67881742.563347%
B67881011.487920%
C6788550.810253%
D67881021.502652%

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 8483 6788 40 40 0.47% 0.59%
B 8483 6788 7 7 0.08% 0.10%
C 8482 6787 0 0 0.00% 0.00%
D 8483 6788 32 32 0.38% 0.47%

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 5 1010542 6019.75 812 793 167.7
A 1 162 127693 756.53 812 793 167.7
A 13 248 56897 334.47 812 793 167.7
B 4 48 49913 309.15 817 797 158.9
B 0 214 22280 135.22 817 797 158.9
B 12 111 16831 100.92 817 797 158.9
C 13 61 6019 28.19 789 794 185.3
C 8 222 2722 10.4 789 794 185.3
C 3 202 1934 6.15 789 794 185.3
D 7 71 121914 575.34 784 764 210.6
D 4 95 100255 472.48 784 764 210.6
D 2 14 52030 243.46 784 764 210.6

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