ASTROSAT CZTI

Data Quality Report

Orbit 11033

Creation date: 2024-06-27T16:07:32.462901
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/AS1A04_130T03_9000001602_11033cztM0_level2.evt modeM0/AS1A04_130T03_9000001602_11033cztM0_level2_quad_clean.evt
Size (bytes)768,720,960109,560,960
Size733.1 MB 104.5 MB
Events in quadrant A9,808,124644,506
Events in quadrant B5,211,086711,751
Events in quadrant C3,471,440720,903
Events in quadrant D4,257,771692,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01622
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034948315
B02073549
C01615647
D01769977

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7843153619.584343%
B78854645.884591%
C7882740.938848%
D78751311.663492%

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 8478 7892 1158 1158 13.66% 14.67%
B 8478 7904 255 255 3.01% 3.23%
C 8478 7904 1 1 0.01% 0.01%
D 8478 7903 53 53 0.63% 0.67%

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 14 238 4903900 27882.29 861 842 175.8
A 15 174 1424626 8096.65 861 842 175.8
A 8 5 143653 812.13 861 842 175.8
B 4 239 1451457 8340.58 908 884 173.9
B 3 189 104302 594.64 908 884 173.9
B 0 214 36928 207.25 908 884 173.9
C 13 61 6628 28.02 886 891 204.8
C 12 4 6296 26.4 886 891 204.8
C 14 234 4804 19.11 886 891 204.8
D 11 129 317740 1487.41 887 861 213.0
D 1 52 168879 788.67 887 861 213.0
D 8 195 134812 628.76 887 861 213.0

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