ASTROSAT CZTI

Data Quality Report

Orbit 04759

Creation date: 2024-06-27T14:46:26.498063
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_195T01_9000000598_04759cztM0_level2.evt modeM0/AS1G05_195T01_9000000598_04759cztM0_level2_quad_clean.evt
Size (bytes)452,756,16073,785,600
Size431.8 MB 70.4 MB
Events in quadrant A2,673,315464,117
Events in quadrant B2,930,667459,944
Events in quadrant C2,794,468461,267
Events in quadrant D4,907,982431,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122242
B0127971
C0126481
D0188241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964380.637156%
B5964420.704225%
C5964350.586854%
D59644667.813548%

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 7095 5965 0 0 0.00% 0.00%
B 7095 5965 3 3 0.04% 0.05%
C 7095 5965 14 14 0.20% 0.23%
D 7095 5965 500 500 7.05% 8.38%

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 8 15 9191 60.16 688 672 141.6
A 13 251 7992 51.69 688 672 141.6
A 0 226 7617 49.04 688 672 141.6
B 15 204 70402 521.43 692 676 133.7
B 4 80 46060 339.4 692 676 133.7
B 14 167 45869 337.97 692 676 133.7
C 14 48 139991 913.3 656 657 152.6
C 1 16 83530 543.21 656 657 152.6
C 12 4 6339 37.24 656 657 152.6
D 11 132 2131719 13613.62 647 627 156.5
D 2 234 81409 516.04 647 627 156.5
D 13 235 63557 402.0 647 627 156.5

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