ASTROSAT CZTI

Data Quality Report

Orbit 44382

Creation date: 2024-06-27T23:02:54.149724
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/AS1A13_008T05_9000005996_44382cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44382cztM0_level2_quad_clean.evt
Size (bytes)362,920,32076,590,720
Size346.1 MB 73.0 MB
Events in quadrant A3,468,626510,690
Events in quadrant B2,511,550538,800
Events in quadrant C2,339,499515,855
Events in quadrant D4,736,362412,852

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011719
B011818
C011419
D011818

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173322843
B0125991880
C0122351893
D0210323736

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124
B0134
C0112
D0101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4819941.950612%
B4891871.778777%
C4894350.715161%
D480665313.587183%

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 7735 4941 1 1 0.01% 0.02%
B 7737 5021 29 29 0.37% 0.58%
C 7731 5042 10 10 0.13% 0.20%
D 7737 4912 608 608 7.86% 12.38%

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 1291898 11258.11 548 536 114.7
A 15 223 31991 274.23 548 536 114.7
A 13 248 11888 98.97 548 536 114.7
B 5 172 208872 1862.2 558 542 111.9
B 5 255 24290 212.28 558 542 111.9
B 0 190 21080 183.58 558 542 111.9
C 14 254 134898 1030.71 547 549 130.3
C 0 207 21269 158.96 547 549 130.3
C 3 233 18672 139.04 547 549 130.3
D 1 52 611562 4761.33 506 491 128.3
D 13 249 567386 4417.12 506 491 128.3
D 12 2 406434 3163.02 506 491 128.3

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