ASTROSAT CZTI

Data Quality Report

Orbit 05836

Creation date: 2024-06-27T14:59:43.241292
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/AS1G06_052T01_9000000754_05836cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05836cztM0_level2_quad_clean.evt
Size (bytes)468,544,32095,299,200
Size446.8 MB 90.9 MB
Events in quadrant A3,333,193602,960
Events in quadrant B3,446,573599,515
Events in quadrant C3,300,932591,478
Events in quadrant D3,601,040572,118

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153073
B0153752
C0153732
D0161602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74681672.236208%
B74681652.209427%
C74681161.553294%
D74681261.687199%

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 7968 7469 4 4 0.05% 0.05%
B 7968 7469 2 2 0.03% 0.03%
C 7968 7469 0 0 0.00% 0.00%
D 7968 7469 10 10 0.13% 0.13%

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 15 234 28903 160.79 857 837 174.5
A 12 194 8357 43.08 857 837 174.5
A 0 226 8240 42.41 857 837 174.5
B 15 204 37392 221.26 863 842 165.2
B 0 214 35068 207.19 863 842 165.2
B 10 245 26049 152.59 863 842 165.2
C 1 16 59558 306.75 830 833 191.4
C 13 61 6828 31.32 830 833 191.4
C 14 67 3020 11.42 830 833 191.4
D 2 152 203581 1011.59 826 800 200.5
D 12 233 198353 985.51 826 800 200.5
D 2 234 14521 68.45 826 800 200.5

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