ASTROSAT CZTI

Data Quality Report

Orbit 16390

Creation date: 2024-06-27T17:22:00.476508
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_069T05_9000002420_16390cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16390cztM0_level2_quad_clean.evt
Size (bytes)509,088,96095,342,400
Size485.5 MB 90.9 MB
Events in quadrant A3,635,684607,060
Events in quadrant B3,939,131616,136
Events in quadrant C3,579,131586,657
Events in quadrant D3,769,956571,373

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154972
B0161301
C0151371
D0161371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72692233.067822%
B72692433.342963%
C72692162.971523%
D72692072.847709%

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 7385 7271 3 3 0.04% 0.04%
B 7385 7271 19 19 0.26% 0.26%
C 7385 7271 0 0 0.00% 0.00%
D 7385 7271 36 36 0.49% 0.50%

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 15 174 96720 528.41 887 867 181.4
A 9 143 67204 365.7 887 867 181.4
A 15 223 47836 258.93 887 867 181.4
B 15 35 115156 659.5 886 862 173.3
B 4 48 69479 395.93 886 862 173.3
B 0 198 63100 359.13 886 862 173.3
C 14 238 129456 644.9 849 855 199.4
C 3 233 115540 575.11 849 855 199.4
C 10 169 12691 59.35 849 855 199.4
D 2 122 258929 1214.37 862 835 212.5
D 12 218 198404 929.59 862 835 212.5
D 2 234 30732 140.67 862 835 212.5

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