ASTROSAT CZTI

Data Quality Report

Orbit 14318

Creation date: 2024-06-27T16:53:27.540072
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/AS1G08_078T01_9000002110_14318cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14318cztM0_level2_quad_clean.evt
Size (bytes)513,239,04072,184,320
Size489.5 MB 68.8 MB
Events in quadrant A3,504,964434,947
Events in quadrant B3,657,983430,645
Events in quadrant C3,505,428425,852
Events in quadrant D4,402,124408,771

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146492
B0151681
C0143741
D0176741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6966801.148435%
B69661291.851852%
C6966500.717772%
D69662103.014643%

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 7562 6967 1 1 0.01% 0.01%
B 7562 6967 29 29 0.38% 0.42%
C 7562 6967 0 0 0.00% 0.00%
D 7562 6967 131 131 1.73% 1.88%

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 9 143 80041 450.97 859 841 175.6
A 12 189 77113 434.3 859 841 175.6
A 8 15 37094 206.43 859 841 175.6
B 0 229 231199 1393.74 850 826 165.3
B 4 48 34082 201.2 850 826 165.3
B 0 219 24648 144.12 850 826 165.3
C 3 233 287042 1494.17 825 830 191.6
C 13 61 5952 26.74 825 830 191.6
C 10 22 3410 13.47 825 830 191.6
D 12 110 538146 2747.99 814 794 195.5
D 1 52 322079 1643.03 814 794 195.5
D 5 222 212162 1080.92 814 794 195.5

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