ASTROSAT CZTI

Data Quality Report

Orbit 43769

Creation date: 2024-06-27T22:55:34.575228
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_026T01_9000005904_43769cztM0_level2.fits modeM0/AS1A13_026T01_9000005904_43769cztM0_level2_quad_clean.evt
Size (bytes)772,162,560114,750,720
Size736.4 MB 109.4 MB
Events in quadrant A6,467,966801,585
Events in quadrant B4,768,224835,706
Events in quadrant C7,719,405751,724
Events in quadrant D9,036,116553,527

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247110
B0193790
C0281880
D0321090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76433744.893366%
B76442002.616431%
C764492112.048666%
D7644199026.033490%

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 7643 7643 290 290 3.79% 3.79%
B 7644 7644 92 92 1.20% 1.20%
C 7644 7644 846 846 11.07% 11.07%
D 7644 7644 1708 1708 22.34% 22.34%

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 1037388 5918.84 839 823 175.1
A 14 63 1006130 5740.36 839 823 175.1
A 15 223 559195 3188.33 839 823 175.1
B 0 200 601135 3628.97 851 826 165.4
B 5 235 170677 1026.78 851 826 165.4
B 5 172 140778 846.03 851 826 165.4
C 15 158 3251884 17181.35 801 806 189.2
C 15 174 664815 3509.16 801 806 189.2
C 3 233 483149 2549.09 801 806 189.2
D 5 235 3740767 20258.96 711 688 184.6
D 13 249 594943 3218.91 711 688 184.6
D 14 210 357962 1935.25 711 688 184.6

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