ASTROSAT CZTI

Data Quality Report

Orbit 03733

Creation date: 2024-06-27T14:32:58.722509
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/AS1G05_248T01_9000000486_03733cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03733cztM0_level2_quad_clean.evt
Size (bytes)487,465,92066,824,640
Size464.9 MB 63.7 MB
Events in quadrant A3,859,544394,835
Events in quadrant B4,372,126402,103
Events in quadrant C2,986,083398,742
Events in quadrant D3,115,973386,113

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153602
B0171971
C0130251
D0134991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63252614.126482%
B63251832.893281%
C6325490.774704%
D6325701.106719%

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 7540 6325 153 153 2.03% 2.42%
B 7540 6325 79 79 1.05% 1.25%
C 7540 6326 1 1 0.01% 0.02%
D 7540 6325 13 13 0.17% 0.21%

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 13 251 455026 2865.78 783 766 158.5
A 8 15 169628 1065.3 783 766 158.5
A 0 118 124460 780.35 783 766 158.5
B 0 173 862221 5726.51 791 775 150.4
B 15 204 199828 1323.22 791 775 150.4
B 4 81 133457 882.01 791 775 150.4
C 1 226 12651 67.82 755 760 175.3
C 1 16 11982 64.01 755 760 175.3
C 12 4 9405 49.31 755 760 175.3
D 14 34 76134 412.68 758 738 182.7
D 13 239 56338 304.33 758 738 182.7
D 2 37 26402 140.47 758 738 182.7

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
Veto Counter