ASTROSAT CZTI

Data Quality Report

Orbit 43696

Creation date: 2024-06-27T22:54:40.942640
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_008T02_9000005900_43696cztM0_level2.fits modeM0/AS1A13_008T02_9000005900_43696cztM0_level2_quad_clean.evt
Size (bytes)784,494,720129,911,040
Size748.2 MB 123.9 MB
Events in quadrant A11,489,068857,082
Events in quadrant B4,650,999897,524
Events in quadrant C4,653,777868,011
Events in quadrant D7,625,152751,310

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0398211
B0190961
C0193172
D0282251

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8030114014.196762%
B80301952.428394%
C80292132.652883%
D8030124815.541719%

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 8100 8031 309 309 3.81% 3.85%
B 8100 8031 70 70 0.86% 0.87%
C 8099 8030 139 139 1.72% 1.73%
D 8100 8031 567 567 7.00% 7.06%

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 15 222 5860464 31101.57 902 882 188.4
A 10 83 918165 4868.77 902 882 188.4
A 15 223 792678 4202.71 902 882 188.4
B 5 235 365001 1976.1 929 902 184.3
B 12 3 244864 1324.07 929 902 184.3
B 4 206 120483 649.01 929 902 184.3
C 15 157 845785 3953.82 905 912 213.7
C 15 173 71906 332.24 905 912 213.7
C 3 233 60980 281.1 905 912 213.7
D 1 20 722421 3057.12 856 834 236.0
D 2 249 465211 1967.41 856 834 236.0
D 1 47 426408 1803.02 856 834 236.0

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