ASTROSAT CZTI

Data Quality Report

Orbit 04099

Creation date: 2024-06-27T14:37:21.166376
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_192T01_9000000522_04099cztM0_level2.evt modeM0/AS1G05_192T01_9000000522_04099cztM0_level2_quad_clean.evt
Size (bytes)68,103,36015,618,240
Size64.9 MB 14.9 MB
Events in quadrant A565,373100,241
Events in quadrant B548,760101,685
Events in quadrant C445,689100,979
Events in quadrant D437,21698,165

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022361
B021901
C019451
D019571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A916303.275109%
B916181.965066%
C916101.091703%
D91630.327511%

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 916 916 10 10 1.09% 1.09%
B 916 916 0 0 0.00% 0.00%
C 916 916 1 1 0.11% 0.11%
D 916 916 0 0 0.00% 0.00%

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 0 199 127642 5099.68 110 107 25.0
A 0 226 12480 494.75 110 107 25.0
A 14 111 2235 85.09 110 107 25.0
B 3 0 90459 3730.96 114 111 24.2
B 10 16 8254 336.27 114 111 24.2
B 12 111 2029 79.2 114 111 24.2
C 9 144 3208 108.85 113 113 28.4
C 13 61 906 27.89 113 113 28.4
C 7 158 366 8.9 113 113 28.4
D 12 233 7156 248.3 110 106 28.4
D 13 72 4962 171.03 110 106 28.4
D 13 239 3769 129.01 110 106 28.4

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