ASTROSAT CZTI

Data Quality Report

Orbit 06552

Creation date: 2024-06-27T15:08:43.477057
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_246T04_9000000882_06552cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06552cztM0_level2_quad_clean.evt
Size (bytes)443,819,52080,323,200
Size423.3 MB 76.6 MB
Events in quadrant A3,036,945493,984
Events in quadrant B3,546,844496,763
Events in quadrant C3,008,541500,273
Events in quadrant D3,398,363479,292

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136083
B0149922
C0136402
D0148102

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6620220.332326%
B66201311.978852%
C6620240.362538%
D6620490.740181%

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 7695 6621 0 0 0.00% 0.00%
B 7695 6620 67 67 0.87% 1.01%
C 7695 6621 0 0 0.00% 0.00%
D 7695 6621 18 18 0.23% 0.27%

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 8 15 45870 285.99 774 756 157.7
A 0 226 7459 42.49 774 756 157.7
A 12 194 7161 40.6 774 756 157.7
B 4 48 206284 1378.93 777 757 149.0
B 4 81 116852 778.91 777 757 149.0
B 0 219 108852 725.23 777 757 149.0
C 1 16 17924 97.07 762 765 176.8
C 9 54 11253 59.33 762 765 176.8
C 13 61 5989 29.55 762 765 176.8
D 14 34 203425 1083.55 759 736 187.1
D 11 241 107121 568.72 759 736 187.1
D 2 152 60118 317.45 759 736 187.1

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