ASTROSAT CZTI

Data Quality Report

Orbit 20200219_C05_002T06_9000003522_level2

Creation date: 2020-02-20T11:42:02.773123
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/AS1C05_002T06_9000003522cztM0_level2_bc.evt modeM0/AS1C05_002T06_9000003522cztM0_level2_quad_clean.evt
Size (bytes)367,937,280127,946,880
Size350.9 MB 122.0 MB
Events in quadrant A1,638,573845,996
Events in quadrant B1,731,489883,567
Events in quadrant C1,793,605852,728
Events in quadrant D5,471,971780,771

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153390
B0156960
C0159560
D0281390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7355540.734194%
B7355690.938137%
C73551061.441196%
D73556969.462950%

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 8705 7354 0 0 0.00% 0.00%
B 8705 7354 0 0 0.00% 0.00%
C 8705 7354 0 0 0.00% 0.00%
D 8705 7354 312 312 3.58% 4.24%

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 13 254 9604 100.02 422 416 91.9
A 8 255 9280 96.5 422 416 91.9
A 0 226 2841 26.4 422 416 91.9
B 0 189 21080 250.65 436 426 82.4
B 10 247 12732 149.34 436 426 82.4
B 10 249 10133 117.8 436 426 82.4
C 7 247 153602 1543.51 421 420 99.2
C 1 16 15238 149.31 421 420 99.2
C 0 10 6313 59.38 421 420 99.2
D 13 174 2029350 20954.87 411 398 96.8
D 1 52 900401 9295.17 411 398 96.8
D 7 238 465049 4798.88 411 398 96.8

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