ASTROSAT CZTI

Data Quality Report

Orbit 43558

Creation date: 2024-06-27T22:53:08.119446
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_174T01_9000005880_43558cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43558cztM0_level2_quad_clean.evt
Size (bytes)890,354,88080,732,160
Size849.1 MB 77.0 MB
Events in quadrant A5,549,443676,095
Events in quadrant B3,375,400707,176
Events in quadrant C11,948,269522,005
Events in quadrant D11,614,777111,128

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209231
B0140681
C0396575
D0386581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60642974.897757%
B60641181.945910%
C6063293048.325911%
D6064602799.389842%

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 7089 6064 162 162 2.29% 2.67%
B 7089 6064 46 46 0.65% 0.76%
C 7087 6062 2736 2736 38.61% 45.13%
D 7088 6063 2822 2822 39.81% 46.54%

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 0 228 1090834 7605.56 693 680 143.3
A 10 83 624555 4352.52 693 680 143.3
A 10 99 601492 4191.62 693 680 143.3
B 3 25 202051 1476.32 695 676 136.4
B 0 199 109927 800.94 695 676 136.4
B 0 230 93579 681.09 695 676 136.4
C 15 142 4335795 34932.99 521 524 124.1
C 15 126 2335696 18816.48 521 524 124.1
C 15 158 1675171 13494.06 521 524 124.1
D 4 212 4188944 89294.3 142 135 46.9
D 4 216 3171797 67611.43 142 135 46.9
D 14 210 676619 14420.85 142 135 46.9

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