ASTROSAT CZTI

Data Quality Report

Orbit 06052

Creation date: 2024-06-27T15:02:10.996278
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/AS1A02_090T01_9000000778_06052cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06052cztM0_level2_quad_clean.evt
Size (bytes)467,579,520101,995,200
Size445.9 MB 97.3 MB
Events in quadrant A3,368,311653,649
Events in quadrant B3,781,778666,606
Events in quadrant C3,245,373656,087
Events in quadrant D3,284,940620,505

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146983
B0159592
C0145822
D0149372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7065340.481246%
B70651191.684360%
C7065230.325548%
D7065240.339703%

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 8025 7066 0 0 0.00% 0.00%
B 8025 7066 43 43 0.54% 0.61%
C 8025 7065 0 0 0.00% 0.00%
D 8025 7066 8 8 0.10% 0.11%

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 76270 431.27 846 831 174.9
A 7 16 30777 171.2 846 831 174.9
A 0 226 8104 41.58 846 831 174.9
B 3 64 306862 1853.66 857 838 165.1
B 0 214 64662 386.6 857 838 165.1
B 4 48 43741 259.87 857 838 165.1
C 1 16 18853 93.08 827 838 193.5
C 13 61 6446 28.98 827 838 193.5
C 3 202 2136 6.71 827 838 193.5
D 5 97 69263 336.75 818 794 203.3
D 8 195 45701 220.87 818 794 203.3
D 11 241 44190 213.43 818 794 203.3

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