ASTROSAT CZTI

Data Quality Report

Orbit 31373

Creation date: 2024-06-27T20:27:27.356941
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_064T05_9000004548_31373cztM0_level2.evt modeM0/AS1A10_064T05_9000004548_31373cztM0_level2_quad_clean.evt
Size (bytes)673,004,16081,783,360
Size641.8 MB 78.0 MB
Events in quadrant A3,621,405507,223
Events in quadrant B5,932,182499,998
Events in quadrant C5,324,263464,127
Events in quadrant D4,993,182479,088

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155211
B0229821
C0206671
D0196781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7556590.780836%
B75561511.998412%
C75564656.154050%
D75572393.162631%

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 7866 7557 0 0 0.00% 0.00%
B 7866 7557 5 5 0.06% 0.07%
C 7866 7557 219 219 2.78% 2.90%
D 7867 7558 157 157 2.00% 2.08%

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 13 254 14085 69.79 937 918 188.7
A 3 137 9703 46.56 937 918 188.7
A 0 226 7842 36.7 937 918 188.7
B 6 159 2116992 11846.28 921 897 178.6
B 0 190 54417 299.61 921 897 178.6
B 0 229 32990 179.66 921 897 178.6
C 3 233 1719809 8353.45 873 877 205.8
C 14 238 143570 693.44 873 877 205.8
C 0 10 23523 110.05 873 877 205.8
D 8 195 1069165 4943.42 898 872 216.1
D 1 52 345234 1593.5 898 872 216.1
D 2 250 79092 361.96 898 872 216.1

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