ASTROSAT CZTI

Data Quality Report

Orbit 47427

Creation date: 2024-07-05T20:02:02.452643
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_053T01_9000006326_47427cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47427cztM0_level2_quad_clean.evt
Size (bytes)615,404,160102,706,560
Size586.9 MB 97.9 MB
Events in quadrant A7,005,155692,199
Events in quadrant B4,349,680667,689
Events in quadrant C2,994,773698,488
Events in quadrant D7,921,474591,695

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255734
B0173511
C0137281
D0282051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65832744.162236%
B65845848.869988%
C6584570.865735%
D658572110.949127%

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 7549 6585 83 83 1.10% 1.26%
B 7549 6585 349 349 4.62% 5.30%
C 7549 6585 10 10 0.13% 0.15%
D 7550 6586 712 712 9.43% 10.81%

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 3643670 24123.57 723 707 151.0
A 9 191 557153 3684.77 723 707 151.0
A 13 248 9100 55.58 723 707 151.0
B 5 32 1357086 10043.29 688 665 135.1
B 0 198 113474 835.27 688 665 135.1
B 5 255 38899 283.09 688 665 135.1
C 0 207 181771 1077.05 715 719 168.1
C 1 3 15000 84.96 715 719 168.1
C 12 250 5751 29.93 715 719 168.1
D 6 112 4655754 26324.22 700 675 176.8
D 2 249 295607 1667.82 700 675 176.8
D 12 233 77455 434.19 700 675 176.8

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