ASTROSAT CZTI

Data Quality Report

Orbit 45574

Creation date: 2024-06-27T23:13:47.844658
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_071T04_9000006110_45574cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45574cztM0_level2_quad_clean.evt
Size (bytes)452,332,800102,168,000
Size431.4 MB 97.4 MB
Events in quadrant A5,156,702688,456
Events in quadrant B2,967,099714,387
Events in quadrant C3,718,928665,340
Events in quadrant D4,441,128611,036

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188951
B0127361
C0150629
D0171781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59301622.731872%
B5930741.247892%
C59252394.033755%
D59302694.536256%

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 7075 5931 6 6 0.08% 0.10%
B 7075 5931 8 8 0.11% 0.13%
C 7074 5927 195 195 2.76% 3.29%
D 7075 5931 188 188 2.66% 3.17%

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 2424340 17220.04 686 672 140.7
A 0 243 22467 154.85 686 672 140.7
A 10 248 19172 131.44 686 672 140.7
B 4 171 70010 527.42 682 663 131.5
B 5 172 53393 401.04 682 663 131.5
B 10 3 33292 248.16 682 663 131.5
C 12 2 1091531 7099.32 660 664 153.7
C 14 254 38870 248.64 660 664 153.7
C 2 14 11664 71.59 660 664 153.7
D 1 52 877492 5198.31 668 646 168.7
D 11 241 262096 1549.99 668 646 168.7
D 2 249 197341 1166.09 668 646 168.7

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