ASTROSAT CZTI

Data Quality Report

Orbit 19193

Creation date: 2024-06-27T17:59:56.343584
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/AS1A05_046T01_9000002838_19193cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19193cztM0_level2_quad_clean.evt
Size (bytes)478,872,000100,846,080
Size456.7 MB 96.2 MB
Events in quadrant A3,083,593661,452
Events in quadrant B3,241,958686,851
Events in quadrant C3,427,097658,559
Events in quadrant D4,345,972631,204

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128671
B0133511
C0138321
D0169281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5954601.007726%
B5954971.629157%
C59541031.729929%
D59542383.997313%

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 7294 5955 0 0 0.00% 0.00%
B 7294 5955 13 13 0.18% 0.22%
C 7294 5955 2 2 0.03% 0.03%
D 7294 5955 132 132 1.81% 2.22%

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 8 144 35260 219.69 787 774 157.0
A 11 29 11356 67.41 787 774 157.0
A 13 254 9266 54.1 787 774 157.0
B 0 197 97432 650.0 796 777 148.7
B 0 189 17888 115.07 796 777 148.7
B 12 111 17341 111.39 796 777 148.7
C 3 233 301907 1689.34 770 777 178.3
C 14 238 120118 669.5 770 777 178.3
C 13 61 5352 25.67 770 777 178.3
D 10 66 1140721 6158.25 764 744 185.1
D 1 52 320728 1728.58 764 744 185.1
D 2 234 22883 119.6 764 744 185.1

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