ASTROSAT CZTI

Data Quality Report

Orbit 44718

Creation date: 2024-06-27T23:05:40.387621
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_009T01_9000006016_44718cztM0_level2.fits modeM0/AS1A13_009T01_9000006016_44718cztM0_level2_quad_clean.evt
Size (bytes)318,343,68056,482,560
Size303.6 MB 53.9 MB
Events in quadrant A3,337,637365,957
Events in quadrant B1,871,309409,611
Events in quadrant C1,647,880392,180
Events in quadrant D4,657,777297,283

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126401
B079361
C072892
D0162721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A345636610.590278%
B3456541.562500%
C3455310.897250%
D345573921.389291%

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 4576 3457 199 199 4.35% 5.76%
B 4576 3457 6 6 0.13% 0.17%
C 4575 3456 7 7 0.15% 0.20%
D 4575 3456 564 564 12.33% 16.32%

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 1091086 13062.25 398 390 83.5
A 15 223 612091 7325.77 398 390 83.5
A 13 248 81114 966.76 398 390 83.5
B 0 189 93798 1140.9 410 398 81.9
B 5 172 41475 501.76 410 398 81.9
B 0 190 40008 483.84 410 398 81.9
C 14 254 43866 451.62 404 408 96.2
C 3 233 11934 119.78 404 408 96.2
C 12 250 7421 72.88 404 408 96.2
D 11 241 1931984 20353.71 378 366 94.9
D 13 174 373596 3932.77 378 366 94.9
D 1 52 366237 3855.23 378 366 94.9

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