ASTROSAT CZTI

Data Quality Report

Orbit 33123

Creation date: 2024-06-27T20:45:15.522748
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_096T01_9000004766_33123cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33123cztM0_level2_quad_clean.evt
Size (bytes)392,281,92065,036,160
Size374.1 MB 62.0 MB
Events in quadrant A1,967,760429,987
Events in quadrant B2,630,318432,519
Events in quadrant C2,343,666420,592
Events in quadrant D4,642,312379,512

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087822
B0107421
C097891
D0167951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A435380.183781%
B43531483.399954%
C4353701.608086%
D435347110.820124%

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 5876 4354 0 0 0.00% 0.00%
B 5876 4354 93 93 1.58% 2.14%
C 5876 4354 47 47 0.80% 1.08%
D 5876 4354 350 350 5.96% 8.04%

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 13 254 7664 69.72 507 496 102.8
A 13 6 7659 69.67 507 496 102.8
A 3 137 4727 41.15 507 496 102.8
B 5 172 379513 3952.16 501 488 95.9
B 0 219 85342 884.79 501 488 95.9
B 0 189 84660 877.68 501 488 95.9
C 0 10 133064 1143.01 495 498 116.0
C 7 221 66649 570.37 495 498 116.0
C 1 241 55535 474.54 495 498 116.0
D 8 195 1088240 9454.91 466 456 115.0
D 12 218 505835 4392.7 466 456 115.0
D 7 223 251444 2181.56 466 456 115.0

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