ASTROSAT CZTI

Data Quality Report

Orbit 47116

Creation date: 2024-06-27T23:31:55.611647
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/AS1C09_003T01_9000006298_47116cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47116cztM0_level2_quad_clean.evt
Size (bytes)611,640,000120,859,200
Size583.3 MB 115.3 MB
Events in quadrant A7,610,558807,464
Events in quadrant B4,615,849809,510
Events in quadrant C4,129,876787,343
Events in quadrant D5,674,465707,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284420
B0189000
C0181050
D0224131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78724605.843496%
B78725256.669207%
C78733384.293154%
D78726107.748984%

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 7872 7872 1 1 0.01% 0.01%
B 7872 7872 144 144 1.83% 1.83%
C 7873 7873 134 134 1.70% 1.70%
D 7872 7872 346 346 4.40% 4.40%

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 4124794 22307.79 887 866 184.9
A 14 248 15630 79.86 887 866 184.9
A 13 254 14095 71.56 887 866 184.9
B 5 32 448966 2602.46 877 847 172.2
B 0 190 199406 1153.13 877 847 172.2
B 4 21 157500 909.76 877 847 172.2
C 12 2 500285 2479.37 861 861 201.4
C 14 254 206955 1023.15 861 861 201.4
C 3 233 38763 188.16 861 861 201.4
D 1 47 1092304 5150.38 855 822 211.9
D 2 249 873978 4120.16 855 822 211.9
D 2 120 131866 618.36 855 822 211.9

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