ASTROSAT CZTI

Data Quality Report

Orbit 44190

Creation date: 2024-06-27T23:00:19.916549
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_073T04_9000005964_44190cztM0_level2.fits modeM0/AS1A13_073T04_9000005964_44190cztM0_level2_quad_clean.evt
Size (bytes)539,628,480121,518,720
Size514.6 MB 115.9 MB
Events in quadrant A5,723,482785,180
Events in quadrant B4,743,314812,141
Events in quadrant C3,596,592814,589
Events in quadrant D5,307,054725,630

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228260
B0193890
C0163420
D0212770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77913884.980105%
B77923524.517454%
C7792110.141170%
D77923154.042608%

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 7791 7791 283 283 3.63% 3.63%
B 7792 7792 153 153 1.96% 1.96%
C 7792 7792 2 2 0.03% 0.03%
D 7792 7792 254 254 3.26% 3.26%

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 1442813 8115.06 851 830 177.7
A 15 223 971448 5462.36 851 830 177.7
A 15 174 10542 54.66 851 830 177.7
B 5 172 545572 3239.15 852 824 168.2
B 0 219 145931 862.82 852 824 168.2
B 5 235 139889 826.9 852 824 168.2
C 14 254 114549 559.48 855 860 203.2
C 3 233 81088 394.81 855 860 203.2
C 2 14 29988 143.34 855 860 203.2
D 1 52 733520 3462.98 837 811 211.6
D 13 249 486520 2295.59 837 811 211.6
D 2 249 361070 1702.68 837 811 211.6

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