ASTROSAT CZTI

Data Quality Report

Orbit 34265

Creation date: 2024-06-27T20:58:17.468884
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/AS1A11_059T09_9000004888_34265cztM0_level2.evt modeM0/AS1A11_059T09_9000004888_34265cztM0_level2_quad_clean.evt
Size (bytes)429,249,60089,400,960
Size409.4 MB 85.3 MB
Events in quadrant A2,812,215590,370
Events in quadrant B3,078,343604,996
Events in quadrant C2,699,359598,371
Events in quadrant D4,062,324555,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117410
B0125850
C0109890
D0154790

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5119581.133034%
B51191442.813049%
C5119400.781403%
D51191462.852120%

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 9333 5121 33 33 0.35% 0.64%
B 9333 5121 93 93 1.00% 1.82%
C 9333 5121 28 28 0.30% 0.55%
D 9333 5121 115 115 1.23% 2.25%

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 15 169 434418 3611.08 598 587 120.1
A 9 143 32074 262.09 598 587 120.1
A 10 83 24298 197.36 598 587 120.1
B 5 172 491197 4251.71 597 582 115.4
B 0 229 94188 811.2 597 582 115.4
B 0 189 31421 267.25 597 582 115.4
C 15 214 223385 1638.89 585 592 135.9
C 0 10 96347 704.39 585 592 135.9
C 1 128 46044 334.35 585 592 135.9
D 8 195 1216979 8697.35 573 557 139.9
D 14 52 277873 1982.79 573 557 139.9
D 10 118 61326 434.49 573 557 139.9

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