ASTROSAT CZTI

Data Quality Report

Orbit 42701

Creation date: 2024-06-27T22:43:13.381021
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_013T01_9000005822_42701cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42701cztM0_level2_quad_clean.evt
Size (bytes)309,902,40089,533,440
Size295.5 MB 85.4 MB
Events in quadrant A2,947,984599,270
Events in quadrant B2,451,148611,183
Events in quadrant C2,557,130582,026
Events in quadrant D3,084,459531,980

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120292
B0112433
C0111842
D0132172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5524160.289645%
B5523100.181061%
C552330.054318%
D55231422.571066%

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 7165 5525 6 6 0.08% 0.11%
B 7164 5524 3 3 0.04% 0.05%
C 7164 5524 1 1 0.01% 0.02%
D 7164 5524 145 145 2.02% 2.62%

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 600473 4877.72 598 585 123.0
A 13 6 11668 90.12 598 585 123.0
A 13 254 10073 77.15 598 585 123.0
B 5 255 35557 298.37 594 577 117.2
B 3 112 31811 266.42 594 577 117.2
B 0 230 15479 127.11 594 577 117.2
C 15 214 231597 1700.9 579 582 135.8
C 10 22 18631 132.89 579 582 135.8
C 3 233 17784 126.65 579 582 135.8
D 2 249 412412 2917.32 573 557 141.2
D 12 233 132940 937.72 573 557 141.2
D 1 52 120570 850.1 573 557 141.2

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