ASTROSAT CZTI

Data Quality Report

Orbit 45312

Creation date: 2024-06-27T23:12:15.527109
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_047T01_9000006068_45312cztM0_level2.fits modeM0/AS1A13_047T01_9000006068_45312cztM0_level2_quad_clean.evt
Size (bytes)466,704,000107,127,360
Size445.1 MB 102.2 MB
Events in quadrant A5,781,956709,465
Events in quadrant B3,564,283737,422
Events in quadrant C3,481,538702,739
Events in quadrant D3,939,790637,137

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219492
B0151542
C0150032
D0163852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65521672.548840%
B6552991.510989%
C65521101.678877%
D65521101.678877%

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 7673 6554 88 88 1.15% 1.34%
B 7673 6554 55 55 0.72% 0.84%
C 7673 6554 106 106 1.38% 1.62%
D 7673 6553 124 124 1.62% 1.89%

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 2783695 18368.0 729 713 151.5
A 13 248 91523 599.36 729 713 151.5
A 10 248 48154 313.12 729 713 151.5
B 0 155 152810 1050.53 735 713 144.8
B 4 158 144059 990.09 735 713 144.8
B 0 186 91391 626.31 735 713 144.8
C 14 254 606421 3572.44 716 724 169.5
C 12 2 33067 190.76 716 724 169.5
C 3 233 22477 128.3 716 724 169.5
D 1 52 412675 2308.08 709 688 178.5
D 13 29 153507 856.14 709 688 178.5
D 13 171 145889 813.46 709 688 178.5

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