ASTROSAT CZTI

Data Quality Report

Orbit 47478

Creation date: 2024-07-09T10:04:06.099284
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_017T02_9000006032_47478cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_47478cztM0_level2_quad_clean.evt
Size (bytes)555,039,360112,668,480
Size529.3 MB 107.4 MB
Events in quadrant A7,273,984727,290
Events in quadrant B3,600,503772,839
Events in quadrant C4,387,395737,149
Events in quadrant D4,736,725681,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263582
B0155972
C0180092
D0190152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70663404.811775%
B70661592.250212%
C70661422.009624%
D7066821.160487%

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 7656 7068 78 78 1.02% 1.10%
B 7656 7068 44 44 0.57% 0.62%
C 7656 7068 37 37 0.48% 0.52%
D 7656 7068 23 23 0.30% 0.33%

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 4125917 25374.46 779 761 162.6
A 9 191 132960 813.18 779 761 162.6
A 3 137 9461 53.52 779 761 162.6
B 5 32 288436 1831.75 793 767 157.0
B 0 198 86099 543.36 793 767 157.0
B 0 190 28601 177.23 793 767 157.0
C 3 233 1301377 7025.9 779 779 185.1
C 0 207 17526 90.47 779 779 185.1
C 12 250 13168 66.93 779 779 185.1
D 11 192 1403012 7033.73 776 749 199.4
D 2 249 95021 472.87 776 749 199.4
D 2 165 93027 462.86 776 749 199.4

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