ASTROSAT CZTI

Data Quality Report

Orbit 44979

Creation date: 2024-10-09T15:23:05.516038
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_044T01_9000006034_44979cztM0_level2.fits modeM0/AS1A13_044T01_9000006034_44979cztM0_level2_quad_clean.evt
Size (bytes)537,966,720110,338,560
Size513.0 MB 105.2 MB
Events in quadrant A5,455,434746,502
Events in quadrant B3,650,506778,842
Events in quadrant C3,065,020736,155
Events in quadrant D7,236,170623,637

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209412
B0150532
C0136082
D0261272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65381983.028449%
B65381532.340165%
C6538430.657693%
D653771710.968334%

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 7643 6539 6 6 0.08% 0.09%
B 7643 6538 37 37 0.48% 0.57%
C 7643 6538 4 4 0.05% 0.06%
D 7642 6538 598 598 7.83% 9.15%

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 2386853 14862.83 774 758 160.5
A 7 3 30623 186.03 774 758 160.5
A 2 79 19280 115.37 774 758 160.5
B 5 255 213884 1399.91 768 745 152.3
B 4 171 119912 782.7 768 745 152.3
B 5 172 46661 301.58 768 745 152.3
C 15 208 44472 248.02 751 755 176.3
C 1 3 29860 165.12 751 755 176.3
C 12 249 27896 153.98 751 755 176.3
D 11 241 1885039 10323.69 726 702 182.5
D 13 249 1016863 5567.23 726 702 182.5
D 13 187 629932 3447.35 726 702 182.5

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