ASTROSAT CZTI

Data Quality Report

Orbit 09904

Creation date: 2024-06-27T15:52:18.908146
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/AS1A03_053T01_9000001410_09904cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09904cztM0_level2_quad_clean.evt
Size (bytes)611,305,92082,128,960
Size583.0 MB 78.3 MB
Events in quadrant A4,486,072486,569
Events in quadrant B3,931,501499,749
Events in quadrant C3,660,038497,836
Events in quadrant D5,906,840459,847

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01622
B01626
C01624
D01626

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019133488
B017401469
C016965484
D023443766

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78103955.057618%
B78053164.048687%
C78052262.895580%
D77703504.504505%

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 8722 7914 89 89 1.02% 1.12%
B 8721 7905 3 3 0.03% 0.04%
C 8722 7901 0 0 0.00% 0.00%
D 8722 7902 67 67 0.77% 0.85%

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 15 239 828521 4239.49 946 925 195.2
A 13 251 14769 70.92 946 925 195.2
A 0 226 8586 39.24 946 925 195.2
B 4 81 58680 304.19 959 935 189.8
B 4 239 58485 303.16 959 935 189.8
B 0 214 24972 126.62 959 935 189.8
C 13 61 7080 27.76 936 942 221.1
C 14 67 5283 19.63 936 942 221.1
C 9 221 2803 8.42 936 942 221.1
D 2 16 1310748 5669.64 913 890 231.0
D 8 195 833513 3603.96 913 890 231.0
D 12 233 105081 450.98 913 890 231.0

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