ASTROSAT CZTI

Data Quality Report

Orbit 04316

Creation date: 2024-06-27T14:40:17.600436
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_219T01_9000000540_04316cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04316cztM0_level2_quad_clean.evt
Size (bytes)458,640,00078,793,920
Size437.4 MB 75.1 MB
Events in quadrant A3,331,023487,403
Events in quadrant B3,715,588479,438
Events in quadrant C3,069,377476,981
Events in quadrant D3,309,611465,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01469718
B01555027
C01411917
D01492022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6831450.658762%
B6827771.127875%
C6830190.278184%
D6830470.688141%

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 7563 6839 6 6 0.08% 0.09%
B 7563 6839 34 34 0.45% 0.50%
C 7563 6838 0 0 0.00% 0.00%
D 7564 6840 26 26 0.34% 0.38%

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 13 251 231332 1398.89 798 781 164.8
A 13 248 12341 70.14 798 781 164.8
A 8 15 9134 50.68 798 781 164.8
B 3 0 240972 1545.18 800 782 155.4
B 15 204 218092 1397.99 800 782 155.4
B 14 167 44742 282.8 800 782 155.4
C 9 247 38687 209.79 767 770 180.7
C 10 65 18125 96.02 767 770 180.7
C 12 4 6549 31.97 767 770 180.7
D 4 95 119966 637.33 764 741 187.1
D 13 223 60092 317.27 764 741 187.1
D 12 22 48715 256.45 764 741 187.1

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