ASTROSAT CZTI

Data Quality Report

Orbit 47194

Creation date: 2024-06-27T23:32:42.025176
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_019T01_9000006302_47194cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47194cztM0_level2_quad_clean.evt
Size (bytes)505,981,440108,241,920
Size482.5 MB 103.2 MB
Events in quadrant A6,893,893708,113
Events in quadrant B4,343,657723,341
Events in quadrant C3,179,566708,766
Events in quadrant D3,776,553654,833

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249292
B0176792
C0145712
D0164442

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69142733.948510%
B69142673.861730%
C6914871.258316%
D6914851.229390%

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 7719 6914 94 94 1.22% 1.36%
B 7719 6914 142 142 1.84% 2.05%
C 7719 6915 78 78 1.01% 1.13%
D 7719 6915 59 59 0.76% 0.85%

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 3835119 24214.04 752 735 158.4
A 9 191 111476 699.33 752 735 158.4
A 13 248 15557 93.6 752 735 158.4
B 15 201 573302 3886.16 750 726 147.3
B 0 190 359235 2433.26 750 726 147.3
B 0 200 269234 1822.4 750 726 147.3
C 14 254 231308 1304.68 746 750 176.7
C 15 208 18573 100.86 746 750 176.7
C 3 233 8415 43.37 746 750 176.7
D 6 112 335015 1778.58 745 723 188.0
D 12 233 303066 1608.6 745 723 188.0
D 1 47 61821 325.07 745 723 188.0

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