ASTROSAT CZTI

Data Quality Report

Orbit 20364

Creation date: 2024-06-27T18:14:27.022709
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/AS1A05_205T01_9000003012_20364cztM0_level2.evt modeM0/AS1A05_205T01_9000003012_20364cztM0_level2_quad_clean.evt
Size (bytes)455,374,08095,212,800
Size434.3 MB 90.8 MB
Events in quadrant A3,393,314609,610
Events in quadrant B3,267,728648,233
Events in quadrant C3,107,658612,887
Events in quadrant D3,605,255584,098

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140742
B0134952
C0129903
D0147652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61363285.345502%
B6136631.026728%
C6135590.961695%
D6135751.222494%

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 7451 6136 9 9 0.12% 0.15%
B 7451 6137 9 9 0.12% 0.15%
C 7450 6136 0 0 0.00% 0.00%
D 7450 6136 52 52 0.70% 0.85%

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 14 111 306653 1979.64 774 762 154.5
A 12 96 101232 650.21 774 762 154.5
A 13 254 7869 45.99 774 762 154.5
B 7 220 30315 196.96 802 783 149.9
B 4 142 28328 183.7 802 783 149.9
B 0 197 21598 138.82 802 783 149.9
C 14 238 121068 674.57 764 772 178.3
C 13 61 5379 25.83 764 772 178.3
C 7 220 4586 21.39 764 772 178.3
D 1 52 674196 3659.78 760 738 184.0
D 2 234 26408 139.5 760 738 184.0
D 2 120 20870 109.4 760 738 184.0

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