ASTROSAT CZTI

Data Quality Report

Orbit 46853

Creation date: 2024-06-27T23:28:31.278486
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_9000006274_46853cztM0_level2.fits modeM0/AS1A13_053T01_9000006274_46853cztM0_level2_quad_clean.evt
Size (bytes)519,644,160108,374,400
Size495.6 MB 103.4 MB
Events in quadrant A6,515,076716,130
Events in quadrant B4,341,007742,753
Events in quadrant C3,177,389719,948
Events in quadrant D4,700,725651,255

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235832
B0172673
C0141292
D0184132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64713685.686911%
B64702744.234930%
C6470681.051005%
D64702093.230294%

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 7606 6472 90 90 1.18% 1.39%
B 7605 6471 119 119 1.56% 1.84%
C 7605 6471 37 37 0.49% 0.57%
D 7605 6471 105 105 1.38% 1.62%

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 3556054 23384.0 734 719 152.0
A 7 3 68825 447.94 734 719 152.0
A 9 191 14607 91.34 734 719 152.0
B 3 112 1250862 8793.14 732 710 142.2
B 0 198 60671 421.75 732 710 142.2
B 0 199 45043 311.82 732 710 142.2
C 14 254 275446 1636.95 720 726 167.8
C 1 241 85763 506.7 720 726 167.8
C 13 61 4919 24.98 720 726 167.8
D 1 52 1432870 8070.46 716 693 177.5
D 13 249 230039 1292.39 716 693 177.5
D 13 171 80404 449.18 716 693 177.5

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