ASTROSAT CZTI

Data Quality Report

Orbit 46589

Creation date: 2024-06-27T23:25:08.590010
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_092T03_9000006234_46589cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46589cztM0_level2_quad_clean.evt
Size (bytes)502,732,800111,006,720
Size479.4 MB 105.9 MB
Events in quadrant A6,351,045735,717
Events in quadrant B3,501,561770,430
Events in quadrant C3,367,805741,034
Events in quadrant D4,875,291651,249

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231522
B0147882
C0145732
D0190432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66261492.248717%
B66261051.584666%
C6626600.905524%
D66273465.221065%

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 7811 6627 68 68 0.87% 1.03%
B 7811 6627 40 40 0.51% 0.60%
C 7811 6627 50 50 0.64% 0.75%
D 7812 6628 314 314 4.02% 4.74%

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 10 83 3379064 21731.83 749 731 155.5
A 2 79 14670 89.67 749 731 155.5
A 15 235 13015 79.02 749 731 155.5
B 15 201 156856 1054.0 756 733 148.1
B 0 189 103718 695.26 756 733 148.1
B 5 172 60213 401.55 756 733 148.1
C 14 254 371837 2123.26 743 746 174.8
C 12 2 33996 190.25 743 746 174.8
C 1 3 23257 128.8 743 746 174.8
D 1 52 552054 3060.21 722 699 180.2
D 13 249 422880 2343.25 722 699 180.2
D 2 120 417775 2314.92 722 699 180.2

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