ASTROSAT CZTI

Data Quality Report

Orbit 47565

Creation date: 2024-07-15T02:24:14.033120
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/AS1C09_002T01_9000006334_47565cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47565cztM0_level2_quad_clean.evt
Size (bytes)519,327,360113,895,360
Size495.3 MB 108.6 MB
Events in quadrant A7,890,219726,665
Events in quadrant B3,677,926783,449
Events in quadrant C3,070,254755,425
Events in quadrant D4,040,558693,564

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282852
B0158272
C0143992
D0170102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70285688.081958%
B7027861.223851%
C7027130.185001%
D70271021.451544%

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 7718 7028 156 156 2.02% 2.22%
B 7717 7028 7 7 0.09% 0.10%
C 7717 7028 0 0 0.00% 0.00%
D 7717 7028 51 51 0.66% 0.73%

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 4241340 26731.14 761 745 158.6
A 9 191 653872 4117.07 761 745 158.6
A 13 248 46052 285.6 761 745 158.6
B 0 200 423546 2793.1 777 752 151.4
B 0 198 50147 326.32 777 752 151.4
B 0 190 36767 237.93 777 752 151.4
C 1 3 52726 291.87 760 762 178.0
C 14 220 35534 195.3 760 762 178.0
C 3 233 14881 79.3 760 762 178.0
D 2 249 361437 1908.63 758 737 189.0
D 2 165 337148 1780.1 758 737 189.0
D 4 222 125249 658.85 758 737 189.0

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