ASTROSAT CZTI

Data Quality Report

Orbit 45216

Creation date: 2024-06-27T23:10:42.594642
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_049T06_9000006054_45216cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45216cztM0_level2_quad_clean.evt
Size (bytes)307,203,84056,854,080
Size293.0 MB 54.2 MB
Events in quadrant A3,017,977389,450
Events in quadrant B1,806,509406,418
Events in quadrant C1,969,521380,981
Events in quadrant D4,291,560285,066

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115892
B077220
C084300
D0152632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3664421.146288%
B366650.136388%
C36661353.682488%
D366587323.819918%

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 3665 3665 27 27 0.74% 0.74%
B 3666 3666 3 3 0.08% 0.08%
C 3666 3666 85 85 2.32% 2.32%
D 3666 3666 795 795 21.69% 21.69%

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 1322888 15924.24 395 386 83.0
A 13 248 82115 984.1 395 386 83.0
A 15 174 52455 626.96 395 386 83.0
B 3 112 169115 2183.57 395 383 77.3
B 4 171 26967 344.02 395 383 77.3
B 5 32 17256 218.35 395 383 77.3
C 12 2 355740 3890.86 386 388 91.3
C 15 208 52759 573.43 386 388 91.3
C 3 233 37126 402.26 386 388 91.3
D 13 249 2406514 26481.74 353 342 90.9
D 1 52 198815 2184.35 353 342 90.9
D 5 235 83951 920.18 353 342 90.9

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