ASTROSAT CZTI

Data Quality Report

Orbit 02296

Creation date: 2024-06-27T14:15:48.718771
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/AS1T01_058T01_9000000348_02296cztM0_level2.evt modeM0/AS1T01_058T01_9000000348_02296cztM0_level2_quad_clean.evt
Size (bytes)432,558,72089,432,640
Size412.5 MB 85.3 MB
Events in quadrant A2,790,552557,487
Events in quadrant B3,079,519572,018
Events in quadrant C3,351,753573,089
Events in quadrant D3,433,145549,418

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132722
B0135671
C0145091
D0153341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6544370.565403%
B6544400.611247%
C6544460.702934%
D65441402.139364%

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 7468 6543 0 0 0.00% 0.00%
B 7469 6544 0 0 0.00% 0.00%
C 7468 6543 16 16 0.21% 0.24%
D 7469 6545 136 136 1.82% 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 12 194 7981 49.07 724 706 148.3
A 0 226 7829 48.05 724 706 148.3
A 14 63 1913 8.14 724 706 148.3
B 4 48 226578 1593.26 734 716 141.8
B 8 3 14209 95.18 734 716 141.8
B 15 85 13018 86.78 734 716 141.8
C 5 234 508742 3056.89 704 708 166.2
C 14 223 43519 257.6 704 708 166.2
C 9 247 28900 169.63 704 708 166.2
D 9 66 795108 4813.05 691 673 165.1
D 15 194 12610 72.32 691 673 165.1
D 1 84 9588 54.01 691 673 165.1

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