ASTROSAT CZTI

Data Quality Report

Orbit 11569

Creation date: 2024-06-27T16:15:12.710546
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/AS1A04_112T01_9000001698_11569cztM0_level2.evt modeM0/AS1A04_112T01_9000001698_11569cztM0_level2_quad_clean.evt
Size (bytes)665,997,120103,677,120
Size635.1 MB 98.9 MB
Events in quadrant A6,541,760638,335
Events in quadrant B5,651,587661,172
Events in quadrant C3,392,822667,512
Events in quadrant D4,067,522642,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247433
B0219472
C0157122
D0175592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A762792012.062410%
B76277449.754818%
C7627650.852235%
D76271592.084699%

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 8373 7630 363 363 4.34% 4.76%
B 8373 7630 314 314 3.75% 4.12%
C 8373 7630 0 0 0.00% 0.00%
D 8373 7630 64 64 0.76% 0.84%

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 2690630 15416.87 859 841 174.5
A 1 162 190468 1086.87 859 841 174.5
A 1 178 114333 650.49 859 841 174.5
B 4 239 1614412 9712.79 870 847 166.1
B 15 204 199688 1196.92 870 847 166.1
B 11 51 182197 1091.63 870 847 166.1
C 13 61 6519 28.14 869 871 200.7
C 12 4 2918 10.2 869 871 200.7
C 3 202 2211 6.68 869 871 200.7
D 10 253 233857 1117.94 862 833 208.4
D 2 120 228324 1091.4 862 833 208.4
D 13 122 61972 293.32 862 833 208.4

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