ASTROSAT CZTI

Data Quality Report

Orbit 46408

Creation date: 2024-06-27T23:22:50.838225
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_070T04_9000006204_46408cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46408cztM0_level2_quad_clean.evt
Size (bytes)622,379,520120,228,480
Size593.5 MB 114.7 MB
Events in quadrant A7,356,333802,341
Events in quadrant B4,928,737830,556
Events in quadrant C5,513,773748,187
Events in quadrant D4,646,205725,592

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272081
B0200611
C0218451
D0193131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76652773.613829%
B76652603.392042%
C76666067.905035%
D76652112.752772%

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 7680 7666 84 84 1.09% 1.10%
B 7680 7666 168 168 2.19% 2.19%
C 7681 7667 481 481 6.26% 6.27%
D 7680 7666 150 150 1.95% 1.96%

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 3544785 20297.93 835 816 174.6
A 10 255 373482 2134.43 835 816 174.6
A 0 247 112647 640.51 835 816 174.6
B 2 2 920488 5520.45 840 813 166.6
B 15 201 295170 1766.91 840 813 166.6
B 5 172 147744 881.97 840 813 166.6
C 12 249 1952895 10289.16 804 807 189.7
C 14 254 307167 1614.78 804 807 189.7
C 12 2 54121 281.01 804 807 189.7
D 2 37 539990 2576.84 827 799 209.2
D 5 235 186610 888.01 827 799 209.2
D 14 34 168013 799.13 827 799 209.2

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