ASTROSAT CZTI

Data Quality Report

Orbit 43194

Creation date: 2024-06-27T22:49:09.182970
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/AS1A09_036T17_9000005858_43194cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43194cztM0_level2_quad_clean.evt
Size (bytes)356,152,32089,017,920
Size339.7 MB 84.9 MB
Events in quadrant A3,684,446590,051
Events in quadrant B3,043,048608,719
Events in quadrant C2,858,441579,660
Events in quadrant D3,171,745533,960

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145022
B0128733
C0119492
D0132512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54701602.925046%
B54691302.377034%
C5469751.371366%
D54691292.358749%

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 7112 5471 129 129 1.81% 2.36%
B 7111 5470 107 107 1.50% 1.96%
C 7111 5470 67 67 0.94% 1.22%
D 7111 5470 134 134 1.88% 2.45%

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 570608 4601.6 593 581 123.9
A 15 237 568439 4584.09 593 581 123.9
A 12 189 113643 912.7 593 581 123.9
B 0 229 332969 2873.04 592 575 115.7
B 0 186 125028 1075.71 592 575 115.7
B 0 189 112915 971.01 592 575 115.7
C 15 159 282239 2020.76 585 590 139.4
C 15 214 225217 1611.64 585 590 139.4
C 14 254 51595 365.95 585 590 139.4
D 1 52 458385 3199.9 582 565 143.1
D 12 218 149717 1042.49 582 565 143.1
D 13 249 113872 791.95 582 565 143.1

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