ASTROSAT CZTI

Data Quality Report

Orbit 16358

Creation date: 2024-06-27T17:21:32.339622
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_069T03_9000002416_16358cztM0_level2.evt modeM0/AS1A05_069T03_9000002416_16358cztM0_level2_quad_clean.evt
Size (bytes)487,080,00077,541,120
Size464.5 MB 73.9 MB
Events in quadrant A3,437,955483,226
Events in quadrant B3,526,974495,163
Events in quadrant C3,337,143468,853
Events in quadrant D4,003,592443,294

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141733
B0143702
C0137922
D0162062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65561271.937157%
B65561512.303234%
C65561241.891397%
D65562724.148871%

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 7607 6557 9 9 0.12% 0.14%
B 7607 6557 6 6 0.08% 0.09%
C 7607 6558 0 0 0.00% 0.00%
D 7607 6558 168 168 2.21% 2.56%

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 177124 1038.25 847 829 169.8
A 0 226 7476 39.15 847 829 169.8
A 12 194 6226 31.78 847 829 169.8
B 15 35 53776 332.04 848 828 159.5
B 0 189 38025 233.26 848 828 159.5
B 4 173 32286 197.27 848 828 159.5
C 14 238 125946 671.5 802 807 186.4
C 3 233 73822 391.8 802 807 186.4
C 10 169 6505 30.58 802 807 186.4
D 10 70 507644 2584.66 805 783 196.1
D 12 218 227313 1155.15 805 783 196.1
D 1 52 179609 911.9 805 783 196.1

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