ASTROSAT CZTI

Data Quality Report

Orbit 44431

Creation date: 2024-06-27T23:03:32.096305
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_072T03_9000006000_44431cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44431cztM0_level2_quad_clean.evt
Size (bytes)396,190,080100,661,760
Size377.8 MB 96.0 MB
Events in quadrant A4,321,292675,469
Events in quadrant B3,025,887697,665
Events in quadrant C3,148,927666,354
Events in quadrant D3,712,450598,374

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180431
B0127821
C0131981
D0149941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58751612.740426%
B58761412.399592%
C58761182.008169%
D58762474.203540%

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 7010 5877 9 9 0.13% 0.15%
B 7011 5878 27 27 0.39% 0.46%
C 7011 5878 50 50 0.71% 0.85%
D 7011 5878 156 156 2.23% 2.65%

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 1536553 10633.19 695 682 144.4
A 10 248 29294 198.09 695 682 144.4
A 7 16 19342 129.19 695 682 144.4
B 5 172 119141 877.27 687 668 135.0
B 0 229 117886 867.98 687 668 135.0
B 0 168 35233 255.95 687 668 135.0
C 2 14 282336 1770.77 679 684 159.1
C 3 233 162039 1014.45 679 684 159.1
C 14 254 45772 283.47 679 684 159.1
D 12 233 461778 2706.91 677 654 170.4
D 5 235 262950 1539.74 677 654 170.4
D 2 249 96377 561.91 677 654 170.4

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