ASTROSAT CZTI

Data Quality Report

Orbit 09163

Creation date: 2024-06-27T15:42:09.901035
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/AS1C02_027T01_9000001280_09163cztM0_level2.evt modeM0/AS1C02_027T01_9000001280_09163cztM0_level2_quad_clean.evt
Size (bytes)437,921,280126,849,600
Size417.6 MB 121.0 MB
Events in quadrant A3,577,034842,663
Events in quadrant B3,126,016864,665
Events in quadrant C2,970,651862,807
Events in quadrant D3,157,444829,200

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145743
B0134112
C0130122
D0136622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6342520.819931%
B6342380.599180%
C6342300.473037%
D6342560.883002%

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 7607 6343 22 22 0.29% 0.35%
B 7607 6343 6 6 0.08% 0.09%
C 7607 6343 0 0 0.00% 0.00%
D 7607 6342 21 21 0.28% 0.33%

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 8 5 488884 3207.49 760 744 152.2
A 1 162 67929 441.46 760 744 152.2
A 13 251 49149 318.06 760 744 152.2
B 8 234 50530 354.17 766 748 140.6
B 0 229 31662 219.94 766 748 140.6
B 4 80 22049 151.55 766 748 140.6
C 13 61 5684 28.52 760 765 172.5
C 12 4 3256 14.44 760 765 172.5
C 14 67 2714 11.3 760 765 172.5
D 1 52 177094 956.26 750 731 184.4
D 12 233 43676 232.85 750 731 184.4
D 2 14 36812 195.63 750 731 184.4

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