ASTROSAT CZTI

Data Quality Report

Orbit 48573

Creation date: 2024-09-21T02:35:36.525796
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_037T01_9000006436_48573cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48573cztM0_level2_quad_clean.evt
Size (bytes)494,856,000104,397,120
Size471.9 MB 99.6 MB
Events in quadrant A7,049,152675,622
Events in quadrant B2,895,895728,883
Events in quadrant C2,759,511698,211
Events in quadrant D5,094,394591,867

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254202
B0136763
C0135452
D0201602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66892784.156077%
B6688140.209330%
C6688100.149522%
D66884997.461124%

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 7689 6690 119 119 1.55% 1.78%
B 7688 6689 1 1 0.01% 0.01%
C 7688 6689 0 0 0.00% 0.00%
D 7688 6689 399 399 5.19% 5.97%

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 4154579 28460.92 697 684 146.0
A 0 31 160849 1097.39 697 684 146.0
A 13 248 37079 249.36 697 684 146.0
B 5 255 49248 346.84 709 686 140.0
B 0 183 21528 148.86 709 686 140.0
B 12 111 17781 122.1 709 686 140.0
C 12 250 9844 54.97 703 706 166.2
C 3 233 8562 47.26 703 706 166.2
C 13 61 4611 23.49 703 706 166.2
D 2 165 2131036 12413.73 679 656 171.6
D 13 171 245881 1428.92 679 656 171.6
D 10 199 36258 207.45 679 656 171.6

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