ASTROSAT CZTI

Data Quality Report

Orbit 20389

Creation date: 2024-06-27T18:14:47.317094
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_198T01_9000003014_20389cztM0_level2.evt modeM0/AS1A05_198T01_9000003014_20389cztM0_level2_quad_clean.evt
Size (bytes)471,188,16076,354,560
Size449.4 MB 72.8 MB
Events in quadrant A3,124,106476,624
Events in quadrant B3,550,230477,367
Events in quadrant C3,165,374455,084
Events in quadrant D3,987,305448,219

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134331
B0148271
C0134421
D0160445

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6521500.766754%
B65211582.422941%
C6522590.904630%
D65211452.223585%

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 7476 6522 0 0 0.00% 0.00%
B 7476 6521 50 50 0.67% 0.77%
C 7477 6523 0 0 0.00% 0.00%
D 7476 6521 98 98 1.31% 1.50%

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 0 226 7037 38.18 810 793 163.5
A 3 137 6635 35.73 810 793 163.5
A 12 194 5775 30.47 810 793 163.5
B 7 220 325807 2104.9 800 780 154.4
B 4 216 28661 180.56 800 780 154.4
B 12 111 18650 115.73 800 780 154.4
C 14 238 120818 658.41 775 780 182.3
C 9 221 14089 73.0 775 780 182.3
C 13 61 5371 25.18 775 780 182.3
D 1 52 975117 5086.87 785 761 191.5
D 2 234 23438 118.39 785 761 191.5
D 13 153 19910 99.97 785 761 191.5

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