ASTROSAT CZTI

Data Quality Report

Orbit 34338

Creation date: 2024-06-27T20:59:17.754364
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/AS1C07_001T05_9000004902_34338cztM0_level2.evt modeM0/AS1C07_001T05_9000004902_34338cztM0_level2_quad_clean.evt
Size (bytes)595,851,84093,317,760
Size568.2 MB 89.0 MB
Events in quadrant A2,291,539651,172
Events in quadrant B2,976,285661,693
Events in quadrant C2,934,250658,169
Events in quadrant D9,492,415491,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104843
B0122532
C0118712
D0317752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518170.135109%
B5181821.582706%
C51811202.316155%
D5181235545.454545%

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 7093 5182 2 2 0.03% 0.04%
B 7093 5182 46 46 0.65% 0.89%
C 7093 5182 101 101 1.42% 1.95%
D 7093 5182 2316 2316 32.65% 44.69%

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 29123 248.57 579 568 114.9
A 9 143 19560 165.32 579 568 114.9
A 13 254 7913 63.94 579 568 114.9
B 5 172 267986 2417.79 581 566 110.6
B 0 219 247062 2228.62 581 566 110.6
B 5 200 43233 385.76 581 566 110.6
C 14 254 348014 2652.52 567 571 131.0
C 15 214 216862 1651.25 567 571 131.0
C 0 10 137437 1044.89 567 571 131.0
D 12 235 3383148 29867.24 465 452 113.3
D 12 227 3260048 28780.34 465 452 113.3
D 8 195 880907 7773.91 465 452 113.3

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