ASTROSAT CZTI

Data Quality Report

Orbit 03083

Creation date: 2024-06-27T14:24:25.458349
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/AS1G05_237T03_9000000426_03083cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03083cztM0_level2_quad_clean.evt
Size (bytes)436,944,96076,109,760
Size416.7 MB 72.6 MB
Events in quadrant A3,052,494482,030
Events in quadrant B3,510,067482,064
Events in quadrant C3,247,665469,711
Events in quadrant D3,026,033462,734

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124902
B0140591
C0135211
D0128571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5839701.198835%
B5839851.455729%
C58391773.031341%
D5839510.873437%

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 7119 5840 16 16 0.22% 0.27%
B 7119 5840 24 24 0.34% 0.41%
C 7119 5840 61 61 0.86% 1.04%
D 7119 5840 22 22 0.31% 0.38%

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 8 15 122827 850.98 714 702 143.5
A 12 113 69006 475.95 714 702 143.5
A 0 50 59587 410.32 714 702 143.5
B 0 230 238283 1752.9 714 701 135.5
B 7 252 203441 1495.83 714 701 135.5
B 0 219 112647 825.95 714 701 135.5
C 14 223 403197 2580.8 672 679 156.0
C 6 80 50061 316.62 672 679 156.0
C 1 16 41799 263.65 672 679 156.0
D 10 213 135536 748.63 679 666 180.2
D 10 199 56747 311.29 679 666 180.2
D 12 217 55509 304.42 679 666 180.2

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