ASTROSAT CZTI

Data Quality Report

Orbit 45544

Creation date: 2024-06-27T23:13:25.592840
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_071T02_9000006106_45544cztM0_level2.fits modeM0/AS1A13_071T02_9000006106_45544cztM0_level2_quad_clean.evt
Size (bytes)549,561,600109,293,120
Size524.1 MB 104.2 MB
Events in quadrant A5,919,965738,457
Events in quadrant B5,911,964699,699
Events in quadrant C3,354,758739,614
Events in quadrant D4,638,824666,560

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022258112
B02201668
C01460366
D01826554

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01371
B01380
C01380
D01371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66683314.964007%
B6671100515.065208%
C66721472.203237%
D66753324.973783%

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 8728 6677 27 27 0.31% 0.40%
B 8728 6676 583 583 6.68% 8.73%
C 8728 6677 42 42 0.48% 0.63%
D 8728 6681 176 176 2.02% 2.63%

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 2712154 16331.7 794 775 166.0
A 13 248 104762 626.35 794 775 166.0
A 2 79 32333 190.09 794 775 166.0
B 12 3 2743795 18165.71 761 741 151.0
B 15 201 72385 474.46 761 741 151.0
B 5 172 51962 339.21 761 741 151.0
C 14 254 246648 1320.04 785 790 186.2
C 12 2 23779 123.43 785 790 186.2
C 3 233 9158 44.93 785 790 186.2
D 13 249 501402 2534.41 780 758 197.5
D 5 222 233889 1180.18 780 758 197.5
D 1 52 220215 1110.96 780 758 197.5

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