ASTROSAT CZTI

Data Quality Report

Orbit 09084

Creation date: 2024-06-27T15:40:56.796146
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/AS1A03_120T01_9000001266_09084cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09084cztM0_level2_quad_clean.evt
Size (bytes)453,934,08089,746,560
Size432.9 MB 85.6 MB
Events in quadrant A3,647,700563,952
Events in quadrant B3,263,442575,579
Events in quadrant C2,948,077569,142
Events in quadrant D3,434,312543,544

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01525414
B0142024
C0134986
D01480717

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6676420.629119%
B6679350.524031%
C6678110.164720%
D6676881.318155%

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 7630 6681 17 17 0.22% 0.25%
B 7630 6680 7 7 0.09% 0.10%
C 7630 6680 0 0 0.00% 0.00%
D 7630 6681 73 73 0.96% 1.09%

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 5 506139 3267.44 760 744 154.7
A 5 16 91618 587.51 760 744 154.7
A 1 162 63629 406.56 760 744 154.7
B 4 48 161725 1100.52 768 750 146.3
B 0 230 46141 310.32 768 750 146.3
B 0 219 42356 284.44 768 750 146.3
C 8 128 12581 68.06 749 753 173.8
C 8 112 6325 32.06 749 753 173.8
C 13 61 5776 28.9 749 753 173.8
D 13 104 215076 1075.33 736 720 199.3
D 8 195 131442 655.77 736 720 199.3
D 7 71 65509 325.02 736 720 199.3

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