ASTROSAT CZTI

Data Quality Report

Orbit 45068

Creation date: 2024-06-27T23:09:34.566799
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_020T01_9000006040_45068cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45068cztM0_level2_quad_clean.evt
Size (bytes)492,330,240110,024,640
Size469.5 MB 104.9 MB
Events in quadrant A5,357,630749,789
Events in quadrant B3,215,330776,589
Events in quadrant C3,093,124748,496
Events in quadrant D6,076,309623,016

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199951
B0134641
C0131491
D0223191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62151582.542237%
B62161091.753539%
C6216821.319176%
D621670911.406049%

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 7405 6216 9 9 0.12% 0.14%
B 7406 6217 14 14 0.19% 0.23%
C 7406 6217 18 18 0.24% 0.29%
D 7406 6217 513 513 6.93% 8.25%

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 2343958 15089.69 757 741 155.3
A 13 248 38968 246.17 757 741 155.3
A 7 3 20610 127.95 757 741 155.3
B 10 3 124606 850.45 751 730 145.7
B 5 255 58013 393.27 751 730 145.7
B 4 171 21219 140.66 751 730 145.7
C 1 3 39073 219.16 750 758 174.8
C 12 250 36028 201.75 750 758 174.8
C 0 207 30692 171.22 750 758 174.8
D 1 52 753757 4259.1 714 695 176.8
D 13 249 629542 3556.58 714 695 176.8
D 5 235 378021 2134.05 714 695 176.8

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