ASTROSAT CZTI

Data Quality Report

Orbit 05227

Creation date: 2024-06-27T14:53:05.067007
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_258T01_9000000666_05227cztM0_level2.evt modeM0/AS1G05_258T01_9000000666_05227cztM0_level2_quad_clean.evt
Size (bytes)488,102,40091,382,400
Size465.5 MB 87.1 MB
Events in quadrant A2,487,536590,326
Events in quadrant B2,567,813603,614
Events in quadrant C2,425,354584,343
Events in quadrant D6,920,580596,594

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012507975
B012483957
C012379960
D0268402389

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012410
B01239
C012410
D012414

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5627520.924116%
B5633571.011894%
C5631200.355177%
D5516141325.616389%

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 7066 5837 5 5 0.07% 0.09%
B 7066 5828 1 1 0.01% 0.02%
C 7066 5813 0 0 0.00% 0.00%
D 7066 5736 1204 1204 17.04% 20.99%

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 0 50 54809 421.63 631 616 128.5
A 12 194 6340 44.53 631 616 128.5
A 0 226 6140 42.97 631 616 128.5
B 4 80 34267 277.6 640 625 121.2
B 4 48 24198 194.52 640 625 121.2
B 0 219 19785 158.1 640 625 121.2
C 1 16 42307 298.12 609 610 139.9
C 13 61 5065 31.85 609 610 139.9
C 14 67 4159 25.37 609 610 139.9
D 11 145 4616464 35246.16 529 511 131.0
D 2 63 192807 1468.32 529 511 131.0
D 8 195 37781 284.58 529 511 131.0

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