ASTROSAT CZTI

Data Quality Report

Orbit 43092

Creation date: 2024-06-27T22:47:54.570629
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_152T01_9000005846_43092cztM0_level2.fits modeM0/AS1T05_152T01_9000005846_43092cztM0_level2_quad_clean.evt
Size (bytes)351,691,20097,663,680
Size335.4 MB 93.1 MB
Events in quadrant A3,394,828649,594
Events in quadrant B2,916,073660,144
Events in quadrant C2,784,859640,573
Events in quadrant D3,451,985584,936

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139653
B0128872
C0123122
D0147062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6043450.744663%
B6043150.248221%
C604380.132385%
D60431402.316730%

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 9118 6045 36 36 0.39% 0.60%
B 9118 6045 8 8 0.09% 0.13%
C 9118 6045 1 1 0.01% 0.02%
D 9118 6045 105 105 1.15% 1.74%

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 634209 4736.59 648 635 133.8
A 15 237 137765 1025.18 648 635 133.8
A 12 189 105904 786.99 648 635 133.8
B 0 229 157253 1244.27 643 624 125.9
B 0 189 78797 621.01 643 624 125.9
B 5 255 77374 609.7 643 624 125.9
C 15 214 251746 1689.97 633 634 148.6
C 0 207 34047 224.87 633 634 148.6
C 14 254 22397 146.46 633 634 148.6
D 1 52 540981 3519.52 626 605 153.5
D 12 6 157826 1023.99 626 605 153.5
D 12 218 136157 882.86 626 605 153.5

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