ASTROSAT CZTI

Data Quality Report

Orbit 45637

Creation date: 2024-06-27T23:14:28.370656
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_071T08_9000006114_45637cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45637cztM0_level2_quad_clean.evt
Size (bytes)604,892,160115,577,280
Size576.9 MB 110.2 MB
Events in quadrant A6,466,452775,421
Events in quadrant B4,658,799774,749
Events in quadrant C3,305,995783,954
Events in quadrant D7,392,139654,990

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242513
B0187291
C0152801
D0271591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73283434.680677%
B73285227.123362%
C7329550.750443%
D732983611.406740%

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 7568 7330 8 8 0.11% 0.11%
B 7568 7329 227 227 3.00% 3.10%
C 7569 7331 6 6 0.08% 0.08%
D 7569 7330 585 585 7.73% 7.98%

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 3109474 17840.62 837 816 174.2
A 13 248 66751 378.4 837 816 174.2
A 0 243 23776 131.77 837 816 174.2
B 3 112 683631 4214.45 826 802 162.0
B 5 172 395147 2433.92 826 802 162.0
B 0 186 52352 318.17 826 802 162.0
C 14 254 49705 252.75 823 829 193.4
C 2 14 18225 89.96 823 829 193.4
C 3 233 12596 60.85 823 829 193.4
D 11 241 1839921 9212.31 783 754 199.6
D 1 52 936301 4686.12 783 754 199.6
D 8 129 584160 2922.26 783 754 199.6

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