ASTROSAT CZTI

Data Quality Report

Orbit 40073

Creation date: 2024-06-27T22:12:02.224316
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/AS1T05_086T01_9000005518_40073cztM0_level2.fits modeM0/AS1T05_086T01_9000005518_40073cztM0_level2_quad_clean.evt
Size (bytes)62,098,56015,468,480
Size59.2 MB 14.8 MB
Events in quadrant A518,774101,987
Events in quadrant B445,621107,142
Events in quadrant C824,50498,961
Events in quadrant D439,80293,744

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020692
B018811
C030211
D018841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85850.582751%
B85830.349650%
C858637.342657%
D85840.466200%

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 858 858 2 2 0.23% 0.23%
B 858 858 1 1 0.12% 0.12%
C 858 858 63 63 7.34% 7.34%
D 858 858 4 4 0.47% 0.47%

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 132408 5962.71 98 96 22.2
A 2 79 5017 221.77 98 96 22.2
A 10 67 1875 80.17 98 96 22.2
B 4 171 41006 1917.83 97 95 21.3
B 10 246 20011 933.62 97 95 21.3
B 12 111 2372 106.74 97 95 21.3
C 9 187 401888 16691.64 93 93 24.1
C 15 214 40057 1660.21 93 93 24.1
C 0 10 15126 624.51 93 93 24.1
D 12 227 71281 2778.33 94 90 25.6
D 3 238 3890 148.3 94 90 25.6
D 2 234 2981 112.83 94 90 25.6

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