ASTROSAT CZTI

Data Quality Report

Orbit 47153

Creation date: 2024-06-27T23:32:17.883797
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/AS1C09_003T01_9000006298_47153cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47153cztM0_level2_quad_clean.evt
Size (bytes)469,955,520110,422,080
Size448.2 MB 105.3 MB
Events in quadrant A6,796,118725,939
Events in quadrant B3,471,616751,662
Events in quadrant C3,136,927721,922
Events in quadrant D3,461,362668,160

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246442
B0152172
C0144882
D0153672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68283094.525483%
B68281301.903925%
C6829580.849319%
D6828901.318102%

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 8813 6830 108 108 1.23% 1.58%
B 8813 6829 31 31 0.35% 0.45%
C 8814 6831 34 34 0.39% 0.50%
D 8813 6830 63 63 0.71% 0.92%

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 3878022 25078.89 742 727 154.6
A 9 191 16715 103.41 742 727 154.6
A 0 243 15609 96.26 742 727 154.6
B 4 21 250809 1680.98 746 720 148.8
B 0 200 75484 502.53 746 720 148.8
B 0 183 50110 331.97 746 720 148.8
C 14 254 221751 1289.04 733 736 171.5
C 15 208 37272 213.09 733 736 171.5
C 3 233 8975 48.05 733 736 171.5
D 12 1 306040 1659.71 730 707 184.0
D 1 47 177588 961.48 730 707 184.0
D 2 234 33841 180.11 730 707 184.0

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