ASTROSAT CZTI

Data Quality Report

Orbit 46363

Creation date: 2024-06-27T23:22:14.409026
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_070T05_9000006198_46363cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46363cztM0_level2_quad_clean.evt
Size (bytes)601,776,000116,801,280
Size573.9 MB 111.4 MB
Events in quadrant A7,633,255749,635
Events in quadrant B4,627,260792,137
Events in quadrant C3,553,251782,393
Events in quadrant D5,890,470699,012

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275961
B0189141
C0160231
D0226451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73795377.277409%
B73803915.298103%
C7380620.840108%
D73802933.970190%

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 7524 7380 237 237 3.15% 3.21%
B 7525 7381 176 176 2.34% 2.38%
C 7525 7381 34 34 0.45% 0.46%
D 7525 7381 205 205 2.72% 2.78%

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 3532074 20576.76 820 801 171.6
A 15 223 724392 4216.37 820 801 171.6
A 13 248 122118 706.92 820 801 171.6
B 5 172 327105 1992.67 823 799 163.8
B 0 246 200178 1217.56 823 799 163.8
B 8 234 157071 954.32 823 799 163.8
C 12 2 200606 1026.98 822 827 194.5
C 14 254 110598 564.28 822 827 194.5
C 3 233 26594 132.46 822 827 194.5
D 1 52 1665746 8175.35 812 788 203.7
D 12 1 410229 2010.45 812 788 203.7
D 13 249 129885 633.9 812 788 203.7

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