ASTROSAT CZTI

Data Quality Report

Orbit 46327

Creation date: 2024-06-27T23:21:45.708605
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_200T01_9000006196_46327cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46327cztM0_level2_quad_clean.evt
Size (bytes)683,472,96092,839,680
Size651.8 MB 88.5 MB
Events in quadrant A13,717,069266,540
Events in quadrant B3,948,496748,449
Events in quadrant C3,092,603710,528
Events in quadrant D4,036,128631,843

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0452382
B0158913
C0137862
D0165162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6504454269.833948%
B65031872.875596%
C6504881.353014%
D65043024.643296%

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 7574 6504 3645 3645 48.13% 56.04%
B 7573 6504 38 38 0.50% 0.58%
C 7574 6505 17 17 0.22% 0.26%
D 7574 6505 184 184 2.43% 2.83%

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 15 223 9524235 90054.07 510 500 105.8
A 10 83 2132078 20155.67 510 500 105.8
A 15 239 25273 234.25 510 500 105.8
B 3 112 777970 5298.98 748 723 146.7
B 5 172 66505 448.48 748 723 146.7
B 5 255 46195 310.01 748 723 146.7
C 12 249 76788 434.1 742 746 175.2
C 1 3 72529 409.79 742 746 175.2
C 12 2 41881 234.83 742 746 175.2
D 1 52 629844 3443.5 725 700 182.7
D 13 249 521694 2851.56 725 700 182.7
D 2 249 28751 153.53 725 700 182.7

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