ASTROSAT CZTI

Data Quality Report

Orbit 03240

Creation date: 2024-06-27T14:26:36.843038
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_104T01_9000000440_03240cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03240cztM0_level2_quad_clean.evt
Size (bytes)437,172,48090,936,000
Size416.9 MB 86.7 MB
Events in quadrant A3,018,572585,225
Events in quadrant B3,510,949587,420
Events in quadrant C3,009,249577,521
Events in quadrant D3,253,867544,939

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135333
B0148752
C0135232
D0145752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6584260.394897%
B6584400.607533%
C6584160.243013%
D6584630.956865%

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 7788 6584 7 7 0.09% 0.11%
B 7788 6584 1 1 0.01% 0.02%
C 7788 6584 6 6 0.08% 0.09%
D 7789 6585 38 38 0.49% 0.58%

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 0 118 55076 350.57 756 744 155.0
A 0 50 22301 139.09 756 744 155.0
A 3 1 19269 119.53 756 744 155.0
B 15 204 435000 2906.78 777 760 149.4
B 2 249 32272 210.94 777 760 149.4
B 4 170 12396 77.89 777 760 149.4
C 14 48 40664 230.6 739 746 173.1
C 14 223 33185 187.39 739 746 173.1
C 6 80 26654 149.67 739 746 173.1
D 13 223 230805 1312.47 721 702 175.3
D 13 114 186930 1062.22 721 702 175.3
D 13 239 52994 298.27 721 702 175.3

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