ASTROSAT CZTI

Data Quality Report

Orbit 08208

Creation date: 2024-06-27T15:29:30.011474
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/AS1A03_103T01_9000001132_08208cztM0_level2.evt modeM0/AS1A03_103T01_9000001132_08208cztM0_level2_quad_clean.evt
Size (bytes)379,333,440110,885,760
Size361.8 MB 105.7 MB
Events in quadrant A2,876,534748,946
Events in quadrant B2,821,100758,289
Events in quadrant C2,540,241733,869
Events in quadrant D2,846,197702,971

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127792
B0124441
C0120471
D0126781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5928781.315789%
B5928500.843455%
C5928110.185560%
D5928450.759109%

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 7057 5928 42 42 0.60% 0.71%
B 7058 5929 8 8 0.11% 0.13%
C 7058 5929 0 0 0.00% 0.00%
D 7058 5929 22 22 0.31% 0.37%

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 4 2 249319 1800.97 680 667 138.1
A 0 226 6691 43.63 680 667 138.1
A 12 194 6123 39.52 680 667 138.1
B 10 16 48081 365.11 686 671 129.9
B 0 214 32782 247.29 686 671 129.9
B 0 213 23779 177.96 686 671 129.9
C 14 67 5015 29.26 650 653 149.1
C 13 61 5002 29.17 650 653 149.1
C 3 202 1727 7.2 650 653 149.1
D 2 152 152096 961.5 651 631 157.5
D 1 52 35191 219.39 651 631 157.5
D 2 14 34411 214.43 651 631 157.5

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