ASTROSAT CZTI

Data Quality Report

Orbit 03614

Creation date: 2024-06-27T14:31:37.917241
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_234T02_9000000474_03614cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03614cztM0_level2_quad_clean.evt
Size (bytes)529,776,00069,410,880
Size505.2 MB 66.2 MB
Events in quadrant A3,093,256416,608
Events in quadrant B3,611,292415,758
Events in quadrant C5,788,541400,842
Events in quadrant D3,098,415402,867

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137993
B0147982
C0217502
D0140632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6675851.273408%
B6675941.408240%
C66754466.681648%
D6675771.153558%

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 7670 6676 1 1 0.01% 0.01%
B 7670 6676 2 2 0.03% 0.03%
C 7670 6676 285 285 3.72% 4.27%
D 7670 6676 15 15 0.20% 0.22%

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 36692 223.91 780 763 160.5
A 0 149 14103 83.13 780 763 160.5
A 0 128 13091 76.83 780 763 160.5
B 15 204 322432 2092.12 787 767 153.8
B 3 0 133315 862.1 787 767 153.8
B 5 172 30306 192.12 787 767 153.8
C 2 53 2793074 16341.67 739 743 170.9
C 9 247 85527 496.18 739 743 170.9
C 7 223 13322 73.62 739 743 170.9
D 13 223 103213 562.41 751 728 182.2
D 8 195 40795 219.88 751 728 182.2
D 7 223 37159 199.92 751 728 182.2

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
Veto Counter