ASTROSAT CZTI

Data Quality Report

Orbit 46744

Creation date: 2024-06-27T23:27:06.100444
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/AS1T05_205T01_9000006260_46744cztM0_level2.fits modeM0/AS1T05_205T01_9000006260_46744cztM0_level2_quad_clean.evt
Size (bytes)1,214,994,240248,244,480
Size1.1 GB 236.7 MB
Events in quadrant A14,989,5791,625,755
Events in quadrant B9,595,7471,704,174
Events in quadrant C7,248,7661,653,836
Events in quadrant D11,871,9251,400,578

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03300
B03300
C03300
D03300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0543331
B0392991
C0339711
D0471621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A164136053.686102%
B164135333.247426%
C164142941.791154%
D16414168510.265627%

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 16883 16413 15 15 0.09% 0.09%
B 16883 16413 52 52 0.31% 0.32%
C 16884 16414 9 9 0.05% 0.05%
D 16884 16414 1176 1176 6.97% 7.16%

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 7154196 19130.45 1792 1754 373.9
A 9 191 397998 1059.82 1792 1754 373.9
A 3 7 342979 912.67 1792 1754 373.9
B 3 112 1822453 5070.91 1791 1731 359.1
B 4 171 259126 716.87 1791 1731 359.1
B 0 190 104027 284.91 1791 1731 359.1
C 3 233 129249 304.95 1782 1790 418.0
C 14 254 106692 250.98 1782 1790 418.0
C 12 2 54896 127.06 1782 1790 418.0
D 13 249 4543640 10530.76 1717 1657 431.3
D 1 52 208575 479.75 1717 1657 431.3
D 11 192 117681 269.01 1717 1657 431.3

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