ASTROSAT CZTI

Data Quality Report

Orbit 47316

Creation date: 2024-06-28T08:06:24.147856
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_093T23_9000006316_47316cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47316cztM0_level2_quad_clean.evt
Size (bytes)572,725,440105,822,720
Size546.2 MB 100.9 MB
Events in quadrant A6,898,342718,341
Events in quadrant B3,162,089771,903
Events in quadrant C5,912,593632,824
Events in quadrant D4,734,822637,707

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249755
B0134352
C0218722
D0183442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63613275.140701%
B6361711.116177%
C636196115.107687%
D63613134.920610%

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 7556 6362 168 168 2.22% 2.64%
B 7556 6362 6 6 0.08% 0.09%
C 7556 6362 841 841 11.13% 13.22%
D 7556 6362 298 298 3.94% 4.68%

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 3492770 22862.47 740 725 152.7
A 9 191 360475 2355.29 740 725 152.7
A 15 235 167234 1090.13 740 725 152.7
B 10 3 66244 440.95 755 734 148.6
B 0 198 30664 201.46 755 734 148.6
B 0 218 22158 144.21 755 734 148.6
C 12 2 2935730 18192.64 683 687 161.3
C 14 254 271255 1677.1 683 687 161.3
C 3 233 35912 218.34 683 687 161.3
D 6 112 1764966 9822.16 719 698 179.6
D 5 32 36026 196.68 719 698 179.6
D 2 249 34622 188.86 719 698 179.6

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