ASTROSAT CZTI

Data Quality Report

Orbit 48115

Creation date: 2024-08-21T09:38:19.647756
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/AS1T05_223T01_9000006402_48115cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48115cztM0_level2_quad_clean.evt
Size (bytes)461,119,68084,968,640
Size439.8 MB 81.0 MB
Events in quadrant A6,993,132713,961
Events in quadrant B1,121,19543,717
Events in quadrant C2,817,929714,066
Events in quadrant D5,614,540635,391

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250532
B069722
C0135112
D0214122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66274466.730044%
B66276627100.000000%
C6627320.482873%
D66276149.265128%

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 7607 6627 120 120 1.58% 1.81%
B 7606 6626 0 0 0.00% 0.00%
C 7607 6628 4 4 0.05% 0.06%
D 7607 6627 520 520 6.84% 7.85%

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 4105526 27783.2 708 692 147.7
A 13 248 129519 871.95 708 692 147.7
A 7 3 16685 108.25 708 692 147.7
B 2 177 916614 82720.78 45 44 11.1
B 4 21 8710 782.11 45 44 11.1
B 5 32 3075 273.55 45 44 11.1
C 10 20 13077 74.97 711 714 164.9
C 12 2 9513 53.36 711 714 164.9
C 1 3 9297 52.05 711 714 164.9
D 7 67 2358465 13681.06 688 666 172.3
D 2 37 234947 1359.41 688 666 172.3
D 2 165 176161 1018.3 688 666 172.3

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