ASTROSAT CZTI

Data Quality Report

Orbit 44608

Creation date: 2024-06-27T23:04:29.148566
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_009T03_9000006006_44608cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44608cztM0_level2_quad_clean.evt
Size (bytes)589,334,400119,522,880
Size562.0 MB 114.0 MB
Events in quadrant A6,807,499756,291
Events in quadrant B4,157,223821,133
Events in quadrant C4,084,293821,274
Events in quadrant D6,162,803680,084

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265599
B0177692
C0174623
D0236202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A776692311.885140%
B77675727.364491%
C77662533.257790%
D7766102613.211434%

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 7837 7766 491 491 6.27% 6.32%
B 7837 7767 72 72 0.92% 0.93%
C 7835 7765 23 23 0.29% 0.30%
D 7836 7767 749 749 9.56% 9.64%

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 1832991 9943.58 877 856 184.3
A 15 223 1465268 7947.83 877 856 184.3
A 13 248 83302 447.46 877 856 184.3
B 5 172 516555 2824.62 905 874 182.6
B 0 189 28746 152.67 905 874 182.6
B 12 111 23874 125.98 905 874 182.6
C 3 233 308344 1438.77 903 907 213.7
C 12 2 111543 517.76 903 907 213.7
C 12 249 60938 280.94 903 907 213.7
D 13 249 1840000 8426.72 866 838 218.3
D 1 52 774416 3544.4 866 838 218.3
D 2 249 89005 403.97 866 838 218.3

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