ASTROSAT CZTI

Data Quality Report

Orbit 03514

Creation date: 2024-06-27T14:30:22.197135
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_045T01_9000000468_03514cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03514cztM0_level2_quad_clean.evt
Size (bytes)456,912,00095,549,760
Size435.7 MB 91.1 MB
Events in quadrant A3,344,287613,581
Events in quadrant B3,847,764615,910
Events in quadrant C3,136,670604,865
Events in quadrant D3,049,983588,656

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147223
B0159942
C0140472
D0140962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67551482.190970%
B6755881.302739%
C6755711.051073%
D6756701.036116%

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 7820 6755 42 42 0.54% 0.62%
B 7820 6755 19 19 0.24% 0.28%
C 7820 6755 4 4 0.05% 0.06%
D 7821 6756 15 15 0.19% 0.22%

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 50 231201 1429.43 788 770 161.2
A 7 16 34304 208.02 788 770 161.2
A 8 15 21910 131.14 788 770 161.2
B 15 204 446983 2880.28 795 775 154.9
B 4 81 155734 1000.26 795 775 154.9
B 4 170 87320 558.65 795 775 154.9
C 1 192 85768 475.43 764 767 178.8
C 1 16 53985 297.66 764 767 178.8
C 12 4 7281 36.43 764 767 178.8
D 13 223 34253 180.77 766 744 185.4
D 7 39 26712 140.09 766 744 185.4
D 5 233 19695 102.24 766 744 185.4

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