ASTROSAT CZTI

Data Quality Report

Orbit 20190308_A05_212T06_9000002776_level2

Creation date: 2019-03-09T17:32:33.300385
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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_212T06_9000002776cztM0_level2_bc.evt modeM0/AS1A05_212T06_9000002776cztM0_level2_quad_clean.evt
Size (bytes)198,717,12091,535,040
Size189.5 MB 87.3 MB
Events in quadrant A1,375,116592,166
Events in quadrant B1,318,558613,394
Events in quadrant C1,208,402587,540
Events in quadrant D1,705,192565,737

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126500
B0125710
C0122540
D0136780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5916400.676133%
B5916550.929682%
C5916530.895876%
D5916631.064909%

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 7026 5916 0 0 0.00% 0.00%
B 7026 5916 0 0 0.00% 0.00%
C 7026 5916 0 0 0.00% 0.00%
D 7026 5916 13 13 0.19% 0.22%

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 13 138835 2008.49 313 307 69.0
A 9 143 26193 375.32 313 307 69.0
A 13 254 9794 137.55 313 307 69.0
B 0 230 56232 891.16 321 313 62.7
B 0 229 13653 212.59 321 313 62.7
B 3 64 6919 105.28 321 313 62.7
C 3 233 16845 220.92 309 307 74.9
C 9 54 4041 49.88 309 307 74.9
C 13 61 1706 18.69 309 307 74.9
D 1 52 348881 4696.93 310 298 74.2
D 5 222 61823 829.01 310 298 74.2
D 7 96 35112 469.1 310 298 74.2

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