ASTROSAT CZTI

Data Quality Report

Orbit 48184

Creation date: 2024-08-26T09:49:30.064876
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_065T05_9000006412_48184cztM0_level2.fits modeM0/AS1A13_065T05_9000006412_48184cztM0_level2_quad_clean.evt
Size (bytes)461,263,68089,156,160
Size439.9 MB 85.0 MB
Events in quadrant A7,782,783751,932
Events in quadrant B1,169,47847,139
Events in quadrant C3,122,192753,443
Events in quadrant D4,471,624675,451

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279552
B071912
C0138462
D0176622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67074917.320710%
B67076707100.000000%
C6707731.088415%
D67073905.814820%

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 7827 6708 174 174 2.22% 2.59%
B 7826 6706 0 0 0.00% 0.00%
C 7827 6708 9 9 0.11% 0.13%
D 7827 6708 250 250 3.19% 3.73%

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 4494664 27679.29 782 766 162.4
A 13 248 245680 1508.5 782 766 162.4
A 13 254 12557 72.62 782 766 162.4
B 2 177 925227 73867.27 50 49 12.5
B 4 21 25563 2037.07 50 49 12.5
B 0 200 11080 880.73 50 49 12.5
C 12 250 30447 160.77 781 783 184.5
C 0 207 24429 128.16 781 783 184.5
C 14 254 18942 98.42 781 783 184.5
D 2 165 765142 3911.24 775 751 195.4
D 2 249 128711 654.75 775 751 195.4
D 12 128 105020 533.52 775 751 195.4

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