ASTROSAT CZTI

Data Quality Report

Orbit 46248

Creation date: 2024-06-27T23:20:50.354170
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_094T02_9000006190_46248cztM0_level2.fits modeM0/AS1A13_094T02_9000006190_46248cztM0_level2_quad_clean.evt
Size (bytes)658,897,920133,410,240
Size628.4 MB 127.2 MB
Events in quadrant A7,754,647870,347
Events in quadrant B5,582,790890,504
Events in quadrant C4,221,185898,360
Events in quadrant D6,184,968799,822

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0289151
B0223591
C0187321
D0242441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83542533.028489%
B83553394.057451%
C83551251.496110%
D83554024.811490%

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 8389 8355 155 155 1.85% 1.86%
B 8390 8356 158 158 1.88% 1.89%
C 8390 8356 103 103 1.23% 1.23%
D 8390 8356 379 379 4.52% 4.54%

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 3604456 18817.52 912 891 191.5
A 0 247 501497 2614.12 912 891 191.5
A 6 10 61256 315.22 912 891 191.5
B 3 112 1485695 8334.53 910 879 178.2
B 5 255 341027 1909.31 910 879 178.2
B 5 172 54857 302.99 910 879 178.2
C 12 2 333875 1551.2 919 920 214.6
C 14 254 159138 737.12 919 920 214.6
C 1 3 99979 461.5 919 920 214.6
D 1 52 1525770 6714.42 901 872 227.1
D 2 249 374198 1643.83 901 872 227.1
D 5 235 227342 997.19 901 872 227.1

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