ASTROSAT CZTI

Data Quality Report

Orbit 47144

Creation date: 2024-06-27T23:32:13.716333
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/AS1C09_003T01_9000006298_47144cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47144cztM0_level2_quad_clean.evt
Size (bytes)592,099,200104,981,760
Size564.7 MB 100.1 MB
Events in quadrant A7,169,106720,154
Events in quadrant B3,242,914750,232
Events in quadrant C6,803,132579,978
Events in quadrant D4,163,715644,083

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261461
B0144791
C0252091
D0174341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69443885.587558%
B69441872.692972%
C6945147721.267099%
D69453725.356371%

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 7609 6944 74 74 0.97% 1.07%
B 7609 6944 2 2 0.03% 0.03%
C 7610 6945 1365 1365 17.94% 19.65%
D 7610 6945 199 199 2.61% 2.87%

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 3855439 24588.38 758 741 156.8
A 9 191 130351 826.76 758 741 156.8
A 0 247 115053 729.17 758 741 156.8
B 0 200 46974 311.8 760 736 148.3
B 0 198 39900 264.09 760 736 148.3
B 5 172 27529 180.67 760 736 148.3
C 15 208 3968942 25139.45 675 676 157.9
C 14 254 73898 463.87 675 676 157.9
C 12 16 62442 391.29 675 676 157.9
D 1 47 876741 4734.52 737 712 185.0
D 2 120 114452 614.71 737 712 185.0
D 8 48 94971 509.43 737 712 185.0

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