ASTROSAT CZTI

Data Quality Report

Orbit 47487

Creation date: 2024-07-09T19:34:04.095611
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_47487cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47487cztM0_level2_quad_clean.evt
Size (bytes)482,676,480101,537,280
Size460.3 MB 96.8 MB
Events in quadrant A6,832,003673,027
Events in quadrant B3,694,725688,438
Events in quadrant C2,834,512676,614
Events in quadrant D4,026,142604,460

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246751
B0151821
C0128611
D0164081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61842794.511643%
B61852453.961196%
C6185540.873080%
D61852784.494745%

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 7254 6185 55 55 0.76% 0.89%
B 7255 6186 88 88 1.21% 1.42%
C 7255 6186 14 14 0.19% 0.23%
D 7255 6186 149 149 2.05% 2.41%

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 3783458 25988.27 698 683 145.6
A 9 191 268035 1836.75 698 683 145.6
A 15 235 33451 225.12 698 683 145.6
B 0 200 398165 2892.1 696 673 137.4
B 5 32 331598 2407.77 696 673 137.4
B 0 190 88248 637.18 696 673 137.4
C 0 207 107785 653.67 695 700 163.8
C 3 233 10659 60.79 695 700 163.8
C 13 61 4680 24.29 695 700 163.8
D 2 165 614015 3527.27 688 667 173.9
D 7 38 320903 1841.63 688 667 173.9
D 2 249 124343 711.24 688 667 173.9

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