ASTROSAT CZTI

Data Quality Report

Orbit 48045

Creation date: 2024-08-16T12:06:36.336917
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_037T05_9000006392_48045cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48045cztM0_level2_quad_clean.evt
Size (bytes)526,201,920118,218,240
Size501.8 MB 112.7 MB
Events in quadrant A7,227,520788,754
Events in quadrant B3,445,661813,245
Events in quadrant C3,332,732768,366
Events in quadrant D4,895,633691,459

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267850
B0156090
C0155520
D0199640

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7439751.008200%
B7440470.631720%
C7440180.241935%
D74402002.688172%

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 7439 7439 0 0 0.00% 0.00%
B 7440 7440 7 7 0.09% 0.09%
C 7440 7440 10 10 0.13% 0.13%
D 7440 7440 173 173 2.33% 2.33%

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 4011783 23111.2 826 809 173.6
A 7 3 16378 89.71 826 809 173.6
A 13 254 13617 73.8 826 809 173.6
B 5 255 75072 451.03 827 802 164.7
B 7 221 31502 186.43 827 802 164.7
B 0 197 30107 177.96 827 802 164.7
C 12 249 75434 383.06 816 822 194.8
C 12 2 28990 144.62 816 822 194.8
C 5 37 15894 77.38 816 822 194.8
D 2 165 1235164 6130.73 800 774 201.3
D 2 249 258435 1279.7 800 774 201.3
D 13 29 71109 349.33 800 774 201.3

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