ASTROSAT CZTI

Data Quality Report

Orbit 47318

Creation date: 2024-07-02T10:58:59.659525
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_093T23_9000006316_47318cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47318cztM0_level2_quad_clean.evt
Size (bytes)547,548,480114,013,440
Size522.2 MB 108.7 MB
Events in quadrant A8,310,355736,353
Events in quadrant B3,381,457791,778
Events in quadrant C3,344,901746,998
Events in quadrant D4,683,073683,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0299723
B0147832
C0150002
D0188832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70795507.769459%
B70791462.062438%
C70791221.723407%
D70791882.655742%

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 7874 7080 219 219 2.78% 3.09%
B 7874 7080 4 4 0.05% 0.06%
C 7874 7080 18 18 0.23% 0.25%
D 7874 7080 94 94 1.19% 1.33%

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 3802738 22752.68 806 788 167.1
A 9 191 747470 4468.5 806 788 167.1
A 15 235 612908 3663.22 806 788 167.1
B 0 198 27633 164.34 822 797 163.3
B 5 32 21208 124.99 822 797 163.3
B 12 111 21033 123.92 822 797 163.3
C 14 254 119890 620.59 808 812 191.9
C 12 2 48370 247.85 808 812 191.9
C 3 233 23376 117.6 808 812 191.9
D 6 112 1426888 7007.47 804 781 203.5
D 2 165 52952 256.35 804 781 203.5
D 2 234 31614 151.5 804 781 203.5

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