ASTROSAT CZTI

Data Quality Report

Orbit 06140

Creation date: 2024-06-27T15:03:17.242231
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_018T01_9000000798_06140cztM0_level2.evt modeM0/AS1C02_018T01_9000000798_06140cztM0_level2_quad_clean.evt
Size (bytes)529,896,96087,238,080
Size505.3 MB 83.2 MB
Events in quadrant A3,677,848525,176
Events in quadrant B4,247,913533,820
Events in quadrant C3,431,647544,522
Events in quadrant D4,176,726511,576

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160003
B0177822
C0156342
D0179472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7565771.017845%
B75651562.062128%
C7565690.912095%
D75652703.569068%

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 9050 7568 7 7 0.08% 0.09%
B 9050 7568 30 30 0.33% 0.40%
C 9050 7568 2 2 0.02% 0.03%
D 9050 7568 145 145 1.60% 1.92%

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 15 172706 942.63 885 866 182.3
A 13 251 43456 233.63 885 866 182.3
A 4 2 29785 158.64 885 866 182.3
B 0 219 227359 1296.62 897 872 174.7
B 15 204 185675 1057.98 897 872 174.7
B 3 64 154668 880.47 897 872 174.7
C 1 16 23887 114.16 865 871 201.6
C 9 16 14626 68.22 865 871 201.6
C 9 54 14367 66.94 865 871 201.6
D 13 169 629912 2970.36 854 827 211.8
D 2 33 185663 872.74 854 827 211.8
D 8 195 61057 284.39 854 827 211.8

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