ASTROSAT CZTI

Data Quality Report

Orbit 20240703_A13_053T01_9000006326_level2

Creation date: 2024-07-08T10:14:34.500376
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/AS1A13_053T01_9000006326cztM0_level2.fits modeM0/AS1A13_053T01_9000006326cztM0_level2_quad_clean.evt
Size (bytes)1,956,061,4402,363,068,800
Size1.8 GB 2.2 GB
Events in quadrant A11,326,36014,520,466
Events in quadrant B11,234,85814,837,205
Events in quadrant C11,558,31814,158,727
Events in quadrant D9,770,24412,720,651

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08222740
B04947030
C04960660
D06202680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02890
B02890
C02890
D02890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045460
B045460
C045460
D045460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22387396534.311820%
B22387758102.595175%
C22387554792.447348%
D223877133065.943442%

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 256695 223861 0 0 0.00% 0.00%
B 256695 223782 0 0 0.00% 0.00%
C 256695 223508 0 0 0.00% 0.00%
D 256695 223757 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 7 110 9148 8.47 2957 2764 753.4
A 0 29 8695 7.87 2957 2764 753.4
A 14 95 8430 7.52 2957 2764 753.4
B 2 9 10633 13.47 2970 2827 579.5
B 2 8 8604 9.97 2970 2827 579.5
B 3 17 8149 9.18 2970 2827 579.5
C 1 81 8640 7.34 3057 2839 789.9
C 3 202 8608 7.3 3057 2839 789.9
C 1 80 8518 7.19 3057 2839 789.9
D 10 189 7143 5.92 2805 2543 776.6
D 3 14 7096 5.86 2805 2543 776.6
D 15 47 7075 5.84 2805 2543 776.6

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