ASTROSAT CZTI

Data Quality Report

Orbit 51034

Creation date: 2025-03-05T20:35:11.506572
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_001T02_9000006452_51034cztM0_level2.fits modeM0/AS1C07_001T02_9000006452_51034cztM0_level2_quad_clean.evt
Size (bytes)731,459,52098,452,800
Size697.6 MB 93.9 MB
Events in quadrant A8,350,361625,773
Events in quadrant B6,827,356637,667
Events in quadrant C5,546,022621,634
Events in quadrant D5,789,316589,003

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300700
B0253340
C0214980
D0223290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A728192812.745502%
B7282123917.014556%
C72824936.770118%
D72824936.770118%

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 7281 7281 707 707 9.71% 9.71%
B 7282 7282 672 672 9.23% 9.23%
C 7282 7282 314 314 4.31% 4.31%
D 7282 7282 376 376 5.16% 5.16%

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 10 253 1619255 8831.08 753 736 183.3
A 12 80 1355312 7390.94 753 736 183.3
A 12 3 1114422 6076.57 753 736 183.3
B 12 32 1709444 11219.16 722 698 152.3
B 4 81 1269255 8329.0 722 698 152.3
B 4 206 261497 1712.33 722 698 152.3
C 13 49 615191 3029.67 740 733 202.8
C 15 147 403912 1987.93 740 733 202.8
C 1 44 307347 1511.8 740 733 202.8
D 8 176 925948 4469.91 736 710 207.0
D 2 216 625074 3016.36 736 710 207.0
D 9 1 382045 1842.27 736 710 207.0

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