ASTROSAT CZTI

Data Quality Report

Orbit 47456

Creation date: 2024-07-07T19:00:03.534173
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_089T01_9000006330_47456cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47456cztM0_level2_quad_clean.evt
Size (bytes)573,629,76098,827,200
Size547.1 MB 94.2 MB
Events in quadrant A6,964,645659,930
Events in quadrant B3,801,299676,666
Events in quadrant C2,795,417664,131
Events in quadrant D7,186,703553,476

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252481
B0155861
C0129181
D0257821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62792904.618570%
B62792664.236343%
C6278540.860147%
D627980712.852365%

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 7224 6280 68 68 0.94% 1.08%
B 7224 6280 66 66 0.91% 1.05%
C 7223 6279 10 10 0.14% 0.16%
D 7224 6280 729 729 10.09% 11.61%

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 3684121 25206.78 699 684 146.1
A 9 191 506870 3463.97 699 684 146.1
A 14 235 52712 356.04 699 684 146.1
B 5 32 711695 5140.36 697 676 138.3
B 0 198 214575 1546.4 697 676 138.3
B 0 190 57498 410.8 697 676 138.3
C 6 247 24542 144.1 698 700 165.5
C 0 207 23757 139.35 698 700 165.5
C 12 250 10245 57.69 698 700 165.5
D 6 112 2924383 17066.1 674 653 171.3
D 2 165 442656 2580.01 674 653 171.3
D 2 249 419319 2443.79 674 653 171.3

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