ASTROSAT CZTI

Data Quality Report

Orbit 45306

Creation date: 2024-06-27T23:12:11.100898
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_073T04_9000006066_45306cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45306cztM0_level2_quad_clean.evt
Size (bytes)486,817,920115,643,520
Size464.3 MB 110.3 MB
Events in quadrant A5,731,628765,973
Events in quadrant B3,266,001790,788
Events in quadrant C3,430,123758,828
Events in quadrant D5,037,096687,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221084
B0148340
C0156660
D0199310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7158841.173512%
B7159460.642548%
C7160761.061453%
D71602703.770950%

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 7159 7159 14 14 0.20% 0.20%
B 7159 7159 5 5 0.07% 0.07%
C 7160 7160 68 68 0.95% 0.95%
D 7160 7160 277 277 3.87% 3.87%

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 2490379 14849.82 797 778 167.7
A 10 248 140555 833.73 797 778 167.7
A 0 243 16529 93.95 797 778 167.7
B 0 183 56524 356.41 793 768 156.4
B 5 255 26424 164.0 793 768 156.4
B 12 111 19744 121.3 793 768 156.4
C 14 254 323131 1754.94 776 782 183.7
C 3 233 62369 335.29 776 782 183.7
C 11 16 15094 77.92 776 782 183.7
D 1 52 895061 4586.99 775 753 195.0
D 13 249 313900 1606.16 775 753 195.0
D 2 249 220206 1125.6 775 753 195.0

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