ASTROSAT CZTI

Data Quality Report

Orbit 38213

Creation date: 2024-06-27T21:49:50.087816
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/AS1A07_145T01_9000005370_38213cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38213cztM0_level2_quad_clean.evt
Size (bytes)324,636,48094,553,280
Size309.6 MB 90.2 MB
Events in quadrant A3,030,442630,806
Events in quadrant B2,627,874655,555
Events in quadrant C2,976,963622,116
Events in quadrant D2,961,789576,954

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123173
B0113462
C0120852
D0123782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5389801.484505%
B5389270.501021%
C5389561.039154%
D5389420.779365%

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 7212 5390 62 62 0.86% 1.15%
B 7212 5389 12 12 0.17% 0.22%
C 7212 5390 45 45 0.62% 0.83%
D 7212 5390 37 37 0.51% 0.69%

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 392831 3177.39 610 599 123.4
A 13 248 170677 1377.77 610 599 123.4
A 12 189 53312 427.02 610 599 123.4
B 15 85 64024 533.58 615 598 118.9
B 0 183 42753 354.63 615 598 118.9
B 0 229 28443 234.25 615 598 118.9
C 15 214 226961 1592.39 606 611 142.1
C 9 236 164901 1155.79 606 611 142.1
C 14 254 111915 783.03 606 611 142.1
D 2 16 221264 1495.51 606 591 147.6
D 13 249 94726 637.96 606 591 147.6
D 10 203 79020 531.52 606 591 147.6

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