ASTROSAT CZTI

Data Quality Report

Orbit 48197

Creation date: 2024-08-27T12:01:51.981486
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_037T05_9000006414_48197cztM0_level2.fits modeM0/AS1A13_037T05_9000006414_48197cztM0_level2_quad_clean.evt
Size (bytes)457,960,32077,699,520
Size436.7 MB 74.1 MB
Events in quadrant A6,343,456673,753
Events in quadrant B1,048,70242,394
Events in quadrant C2,788,557663,480
Events in quadrant D6,287,649540,744

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240491
B064881
C0127271
D0228161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61422363.842397%
B61426142100.000000%
C6143701.139508%
D6143113918.541429%

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 7117 6142 13 13 0.18% 0.21%
B 7116 6141 0 0 0.00% 0.00%
C 7118 6144 12 12 0.17% 0.20%
D 7118 6144 942 942 13.23% 15.33%

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 3645869 25252.76 691 677 144.3
A 10 255 14549 96.1 691 677 144.3
A 13 254 12072 78.94 691 677 144.3
B 2 177 849142 75804.55 44 43 11.2
B 4 21 18889 1682.5 44 43 11.2
B 12 111 1254 108.11 44 43 11.2
C 12 2 96365 592.99 681 685 161.4
C 14 254 25080 151.19 681 685 161.4
C 0 207 7814 44.18 681 685 161.4
D 8 129 2292647 14881.56 610 592 154.0
D 2 165 1159574 7524.89 610 592 154.0
D 12 233 116700 753.85 610 592 154.0

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