ASTROSAT CZTI

Data Quality Report

Orbit 47072

Creation date: 2024-06-27T23:31:24.057032
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_005T01_9000006296_47072cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47072cztM0_level2_quad_clean.evt
Size (bytes)518,624,640103,726,080
Size494.6 MB 98.9 MB
Events in quadrant A6,287,329685,270
Events in quadrant B3,772,059706,399
Events in quadrant C3,021,136695,261
Events in quadrant D5,602,194591,054

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231291
B0156231
C0141051
D0214161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66363114.686558%
B66362523.797468%
C66361412.124774%
D663676311.497890%

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 7096 6638 1 1 0.01% 0.02%
B 7096 6638 33 33 0.47% 0.50%
C 7096 6638 25 25 0.35% 0.38%
D 7096 6638 627 627 8.84% 9.45%

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 3414240 22639.41 728 711 150.8
A 13 248 35051 227.75 728 711 150.8
A 13 254 11090 68.84 728 711 150.8
B 3 112 623697 4387.54 726 702 142.0
B 5 255 101658 711.0 726 702 142.0
B 0 198 60079 418.17 726 702 142.0
C 12 249 93362 542.81 724 726 170.7
C 14 254 89342 519.26 724 726 170.7
C 3 233 10555 57.59 724 726 170.7
D 1 52 2060754 11739.84 702 679 175.5
D 5 32 246201 1399.16 702 679 175.5
D 1 47 118482 671.33 702 679 175.5

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