ASTROSAT CZTI

Data Quality Report

Orbit 47780

Creation date: 2024-07-29T15:06:55.136852
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/AS1C09_004T02_9000006348_47780cztM0_level2.fits modeM0/AS1C09_004T02_9000006348_47780cztM0_level2_quad_clean.evt
Size (bytes)489,579,84093,288,960
Size466.9 MB 89.0 MB
Events in quadrant A5,903,213641,607
Events in quadrant B3,522,340646,960
Events in quadrant C2,572,594631,788
Events in quadrant D5,676,933501,035

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219061
B0143221
C0119411
D0210211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57662243.884842%
B57672784.820531%
C5767591.023062%
D5767104518.120340%

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 6921 5767 14 14 0.20% 0.24%
B 6922 5768 123 123 1.78% 2.13%
C 6922 5768 6 6 0.09% 0.10%
D 6922 5768 762 762 11.01% 13.21%

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 3334181 24908.53 647 634 133.8
A 13 248 30960 226.6 647 634 133.8
A 7 3 11864 83.91 647 634 133.8
B 5 172 432463 3470.83 641 621 124.4
B 5 32 359418 2883.75 641 621 124.4
B 0 186 92468 738.2 641 621 124.4
C 12 2 64397 433.09 634 637 147.2
C 1 3 22151 146.13 634 637 147.2
C 14 254 9457 59.91 634 637 147.2
D 12 2 2329106 15595.79 592 572 149.3
D 7 204 472239 3159.08 592 572 149.3
D 2 37 146778 979.24 592 572 149.3

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