ASTROSAT CZTI

Data Quality Report

Orbit 47173

Creation date: 2024-06-27T23:32:28.106528
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_47173cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47173cztM0_level2_quad_clean.evt
Size (bytes)419,572,80097,032,960
Size400.1 MB 92.5 MB
Events in quadrant A5,944,079640,075
Events in quadrant B3,021,398666,545
Events in quadrant C2,763,596625,664
Events in quadrant D3,325,142576,785

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219371
B0132941
C0128981
D0142361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61372584.204008%
B61371472.395307%
C61381071.743239%
D61381873.046595%

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 6862 6137 2 2 0.03% 0.03%
B 6862 6137 20 20 0.29% 0.33%
C 6863 6138 10 10 0.15% 0.16%
D 6863 6138 75 75 1.09% 1.22%

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 3316313 23724.66 672 657 139.8
A 9 191 12418 84.15 672 657 139.8
A 13 254 11805 79.77 672 657 139.8
B 4 21 118777 888.7 673 652 132.9
B 0 200 104953 784.7 673 652 132.9
B 5 172 45894 340.37 673 652 132.9
C 14 254 121763 793.66 652 656 152.6
C 15 208 74292 482.56 652 656 152.6
C 3 233 10033 61.45 652 656 152.6
D 12 233 241462 1463.31 659 636 164.6
D 1 47 230798 1398.51 659 636 164.6
D 6 112 84424 509.11 659 636 164.6

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