ASTROSAT CZTI

Data Quality Report

Orbit 32318

Creation date: 2024-06-27T20:38:48.515763
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/AS1A10_005T01_9000004700_32318cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32318cztM0_level2_quad_clean.evt
Size (bytes)694,189,440100,702,080
Size662.0 MB 96.0 MB
Events in quadrant A3,395,239680,725
Events in quadrant B5,860,761654,976
Events in quadrant C4,545,064622,926
Events in quadrant D6,752,615605,680

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145993
B0223082
C0180052
D0248472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6964961.378518%
B69642343.360138%
C69643685.284319%
D69644366.260770%

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 8759 6966 0 0 0.00% 0.00%
B 8759 6966 65 65 0.74% 0.93%
C 8759 6966 71 71 0.81% 1.02%
D 8759 6966 247 247 2.82% 3.55%

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 13 6 22721 124.51 868 849 175.7
A 12 189 21703 118.71 868 849 175.7
A 13 254 14506 77.74 868 849 175.7
B 6 159 2068134 12765.28 843 821 161.9
B 5 172 212863 1309.32 843 821 161.9
B 0 190 166772 1024.72 843 821 161.9
C 0 10 827021 4380.95 809 817 188.6
C 3 233 246866 1304.68 809 817 188.6
C 14 238 147171 776.04 809 817 188.6
D 8 195 2951407 14647.87 833 808 201.4
D 13 249 254102 1257.45 833 808 201.4
D 12 233 167677 828.4 833 808 201.4

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