ASTROSAT CZTI

Data Quality Report

Orbit 13793

Creation date: 2024-06-27T16:46:11.143412
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/AS1A04_199T01_9000002040_13793cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13793cztM0_level2_quad_clean.evt
Size (bytes)452,865,60081,783,360
Size431.9 MB 78.0 MB
Events in quadrant A3,177,902518,698
Events in quadrant B3,276,665534,477
Events in quadrant C3,040,795513,425
Events in quadrant D3,804,167482,741

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131333
B0133842
C0127272
D0155302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6120440.718954%
B6120781.274510%
C6120270.441176%
D6120510.833333%

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 8706 6123 0 0 0.00% 0.00%
B 8706 6123 20 20 0.23% 0.33%
C 8706 6123 0 0 0.00% 0.00%
D 8706 6123 34 34 0.39% 0.56%

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 15 157 104575 653.98 788 774 158.7
A 8 15 14165 84.37 788 774 158.7
A 1 162 11963 70.49 788 774 158.7
B 0 219 64861 432.82 795 778 148.1
B 4 80 63016 420.36 795 778 148.1
B 4 173 19040 123.34 795 778 148.1
C 3 233 50688 281.56 765 769 177.3
C 14 220 7800 39.66 765 769 177.3
C 13 61 5610 27.3 765 769 177.3
D 1 52 682938 3784.13 751 731 180.3
D 10 157 169673 937.1 751 731 180.3
D 13 249 36056 195.94 751 731 180.3

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