ASTROSAT CZTI

Data Quality Report

Orbit 48510

Creation date: 2024-09-16T23:05:56.347100
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_037T01_9000006432_48510cztM0_level2.fits modeM0/AS1A13_037T01_9000006432_48510cztM0_level2_quad_clean.evt
Size (bytes)471,481,920109,172,160
Size449.6 MB 104.1 MB
Events in quadrant A7,069,641719,307
Events in quadrant B3,385,088741,015
Events in quadrant C2,927,881713,065
Events in quadrant D3,525,382643,389

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268490
B0153070
C0142330
D0159110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70181011.439156%
B70191401.994586%
C7019120.170965%
D7019650.926058%

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 7018 7018 26 26 0.37% 0.37%
B 7019 7019 38 38 0.54% 0.54%
C 7019 7019 6 6 0.09% 0.09%
D 7019 7019 67 67 0.95% 0.95%

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 3859594 24372.93 750 734 158.3
A 12 189 245476 1545.81 750 734 158.3
A 7 3 51375 319.85 750 734 158.3
B 12 16 300997 2009.7 747 722 149.4
B 5 255 77675 515.04 747 722 149.4
B 0 186 36942 242.42 747 722 149.4
C 14 254 30341 168.85 741 743 175.3
C 13 61 4975 24.14 741 743 175.3
C 3 233 4770 22.97 741 743 175.3
D 2 165 540608 2922.56 736 712 184.7
D 2 249 80955 434.37 736 712 184.7
D 2 234 37601 199.69 736 712 184.7

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