ASTROSAT CZTI

Data Quality Report

Orbit 45712

Creation date: 2024-06-27T23:15:19.670900
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_028T01_9000006122_45712cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45712cztM0_level2_quad_clean.evt
Size (bytes)617,241,600125,159,040
Size588.6 MB 119.4 MB
Events in quadrant A6,766,138844,743
Events in quadrant B5,318,316843,062
Events in quadrant C5,351,707826,264
Events in quadrant D4,804,642729,583

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254540
B0210920
C0215580
D0198970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78451692.154238%
B78453564.537922%
C78451061.351179%
D78453824.869344%

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 7845 7845 9 9 0.11% 0.11%
B 7845 7845 131 131 1.67% 1.67%
C 7845 7845 57 57 0.73% 0.73%
D 7845 7845 305 305 3.89% 3.89%

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 3221339 17365.14 881 860 185.5
A 2 79 69754 371.48 881 860 185.5
A 13 248 29261 153.14 881 860 185.5
B 3 112 1194607 7013.94 871 846 170.2
B 5 172 213567 1249.84 871 846 170.2
B 15 201 201118 1176.69 871 846 170.2
C 9 54 1636006 8153.7 857 863 200.5
C 1 241 194593 966.04 857 863 200.5
C 14 254 87356 431.3 857 863 200.5
D 13 249 863339 4041.47 837 811 213.4
D 1 52 180105 840.1 837 811 213.4
D 2 249 130154 606.05 837 811 213.4

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