ASTROSAT CZTI

Data Quality Report

Orbit 47872

Creation date: 2024-08-04T20:08:26.092195
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_053T01_9000006370_47872cztM0_level2.fits modeM0/AS1A13_053T01_9000006370_47872cztM0_level2_quad_clean.evt
Size (bytes)543,525,120120,199,680
Size518.3 MB 114.6 MB
Events in quadrant A7,549,147788,828
Events in quadrant B3,526,626809,129
Events in quadrant C3,200,510794,755
Events in quadrant D5,253,755717,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282830
B0160550
C0154740
D0207900

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76061091.433079%
B7607500.657289%
C760720.026292%
D76071812.379387%

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 7606 7606 37 37 0.49% 0.49%
B 7607 7607 23 23 0.30% 0.30%
C 7607 7607 0 0 0.00% 0.00%
D 7607 7607 198 198 2.60% 2.60%

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 4184963 24289.77 827 808 172.3
A 13 248 86326 496.45 827 808 172.3
A 10 255 63090 361.56 827 808 172.3
B 7 221 100464 623.27 823 795 159.9
B 5 255 91589 567.77 823 795 159.9
B 5 32 22672 136.81 823 795 159.9
C 13 61 5551 24.56 818 820 192.6
C 14 254 5541 24.51 818 820 192.6
C 3 233 4671 19.99 818 820 192.6
D 12 2 907670 4442.54 814 788 204.1
D 2 165 397687 1944.29 814 788 204.1
D 2 249 389708 1905.2 814 788 204.1

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