ASTROSAT CZTI

Data Quality Report

Orbit 09591

Creation date: 2024-06-27T15:48:06.741386
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_238T01_9000001364_09591cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09591cztM0_level2_quad_clean.evt
Size (bytes)424,137,60082,405,440
Size404.5 MB 78.6 MB
Events in quadrant A3,463,664519,027
Events in quadrant B2,984,461530,018
Events in quadrant C2,835,291515,618
Events in quadrant D3,137,882496,521

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168232515
B0149182029
C0145831890
D0155802281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014612
B014614
C014513
D014616

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183
B0180
C0183
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61401131.840391%
B6216570.916988%
C6237280.448934%
D6173360.583185%

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 8926 6796 7 7 0.08% 0.10%
B 8926 6837 1 1 0.01% 0.01%
C 8926 6858 0 0 0.00% 0.00%
D 8926 6847 3 3 0.03% 0.04%

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 1 162 252243 1664.98 736 719 151.1
A 1 178 129675 853.63 736 719 151.1
A 1 161 122005 802.86 736 719 151.1
B 4 80 28161 191.07 747 729 143.6
B 0 214 20546 138.03 747 729 143.6
B 12 111 16652 110.9 747 729 143.6
C 8 128 7683 41.13 722 727 169.1
C 13 61 5439 27.86 722 727 169.1
C 8 112 3624 17.13 722 727 169.1
D 8 195 162665 883.96 712 690 183.2
D 1 52 135963 738.24 712 690 183.2
D 10 172 46413 249.53 712 690 183.2

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