ASTROSAT CZTI

Data Quality Report

Orbit 07064

Creation date: 2024-06-27T15:15:07.958147
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/AS1A02_155T01_9000000966_07064cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07064cztM0_level2_quad_clean.evt
Size (bytes)424,258,56083,401,920
Size404.6 MB 79.5 MB
Events in quadrant A2,930,362526,504
Events in quadrant B3,076,320538,788
Events in quadrant C3,213,535530,495
Events in quadrant D3,213,057503,253

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125312
B0128331
C0134361
D0132291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6110671.096563%
B6110671.096563%
C6110941.538462%
D6110961.571195%

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 7325 6111 1 1 0.01% 0.02%
B 7325 6111 0 0 0.00% 0.00%
C 7325 6111 37 37 0.51% 0.61%
D 7325 6111 45 45 0.61% 0.74%

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 13 14 9990 60.33 757 740 153.3
A 8 15 7817 46.15 757 740 153.3
A 0 226 7535 44.31 757 740 153.3
B 0 214 110030 759.3 758 741 143.9
B 12 111 13697 90.01 758 741 143.9
B 11 111 10904 70.61 758 741 143.9
C 4 254 315071 1837.62 741 746 171.0
C 13 61 5863 29.92 741 746 171.0
C 1 3 4851 24.0 741 746 171.0
D 8 195 183521 994.78 744 722 183.8
D 9 68 114714 620.33 744 722 183.8
D 12 233 25955 137.31 744 722 183.8

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