ASTROSAT CZTI

Data Quality Report

Orbit 45403

Creation date: 2024-06-27T23:12:22.130010
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/AS1A13_038T01_9000006076_45403cztM0_level2.fits modeM0/AS1A13_038T01_9000006076_45403cztM0_level2_quad_clean.evt
Size (bytes)454,069,440108,622,080
Size433.0 MB 103.6 MB
Events in quadrant A5,322,574724,739
Events in quadrant B3,502,110755,659
Events in quadrant C2,984,463726,265
Events in quadrant D4,505,727639,524

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206772
B0148042
C0134322
D0178452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63521562.455919%
B63521211.904912%
C6352330.519521%
D63522463.872796%

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 7522 6352 34 34 0.45% 0.54%
B 7522 6352 76 76 1.01% 1.20%
C 7522 6353 27 27 0.36% 0.42%
D 7522 6353 304 304 4.04% 4.79%

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 10 83 2548558 17246.47 716 703 147.7
A 3 137 8036 49.64 716 703 147.7
A 13 254 7899 48.71 716 703 147.7
B 15 201 511078 3619.49 722 700 141.0
B 0 199 27607 190.82 722 700 141.0
B 5 255 23176 159.39 722 700 141.0
C 6 247 78650 462.1 715 718 168.6
C 11 16 35240 204.7 715 718 168.6
C 14 96 32431 188.04 715 718 168.6
D 13 249 619688 3550.74 695 673 174.3
D 1 52 400942 2295.99 695 673 174.3
D 11 241 372195 2131.09 695 673 174.3

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