ASTROSAT CZTI

Data Quality Report

Orbit 06470

Creation date: 2024-06-27T15:07:38.602278
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/AS1G06_139T02_9000000862_06470cztM0_level2.evt modeM0/AS1G06_139T02_9000000862_06470cztM0_level2_quad_clean.evt
Size (bytes)454,328,64061,099,200
Size433.3 MB 58.3 MB
Events in quadrant A3,292,958356,835
Events in quadrant B3,238,446363,532
Events in quadrant C3,387,421352,849
Events in quadrant D3,415,206339,377

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136153
B0133272
C0140622
D0140572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6269580.925187%
B6269420.669963%
C6269330.526400%
D6269450.717818%

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 7629 6271 6 6 0.08% 0.10%
B 7629 6271 0 0 0.00% 0.00%
C 7629 6271 0 0 0.00% 0.00%
D 7629 6271 13 13 0.17% 0.21%

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 15 236 128623 788.25 802 787 162.2
A 8 15 61927 377.0 802 787 162.2
A 10 133 10512 59.97 802 787 162.2
B 15 204 52926 341.27 814 798 152.7
B 12 111 15287 94.86 814 798 152.7
B 0 229 15165 94.06 814 798 152.7
C 1 16 350072 1937.89 777 782 180.2
C 13 61 6197 30.04 777 782 180.2
C 12 4 5934 28.58 777 782 180.2
D 8 195 194809 1019.22 774 750 190.4
D 10 15 85697 446.15 774 750 190.4
D 2 152 80661 419.7 774 750 190.4

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