ASTROSAT CZTI

Data Quality Report

Orbit 46304

Creation date: 2024-06-27T23:21:30.153223
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_072T02_9000006194_46304cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46304cztM0_level2_quad_clean.evt
Size (bytes)596,842,560126,858,240
Size569.2 MB 121.0 MB
Events in quadrant A6,848,709828,853
Events in quadrant B5,633,548857,593
Events in quadrant C3,962,619847,716
Events in quadrant D5,038,958760,638

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254511
B0220561
C0173891
D0205241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78624465.672857%
B78624075.176800%
C78621431.818876%
D78623734.744340%

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 7882 7863 10 10 0.13% 0.13%
B 7882 7863 19 19 0.24% 0.24%
C 7882 7863 44 44 0.56% 0.56%
D 7882 7863 157 157 1.99% 2.00%

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 3040129 15303.93 941 920 198.6
A 15 223 93959 468.5 941 920 198.6
A 2 79 54124 267.91 941 920 198.6
B 3 112 1059950 5583.58 932 900 189.7
B 4 171 742252 3908.6 932 900 189.7
B 0 190 67408 350.65 932 900 189.7
C 12 2 165883 738.77 935 942 223.3
C 1 3 67799 299.45 935 942 223.3
C 14 67 54141 238.28 935 942 223.3
D 1 52 1002146 4297.42 922 893 233.0
D 13 249 405091 1734.83 922 893 233.0
D 2 249 52271 220.52 922 893 233.0

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