ASTROSAT CZTI

Data Quality Report

Orbit 02993

Creation date: 2024-06-27T14:23:10.147434
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_238T05_9000000418_02993cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02993cztM0_level2_quad_clean.evt
Size (bytes)418,919,04047,638,080
Size399.5 MB 45.4 MB
Events in quadrant A4,918,013257,140
Events in quadrant B2,633,896287,340
Events in quadrant C2,250,461275,291
Events in quadrant D2,538,552265,165

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180933
B0110772
C0103932
D0111192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508952310.277068%
B5089591.159363%
C508980.157202%
D5089330.648457%

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 7245 5090 400 400 5.52% 7.86%
B 7245 5090 34 34 0.47% 0.67%
C 7245 5090 6 6 0.08% 0.12%
D 7245 5090 27 27 0.37% 0.53%

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 13 9 1641937 14811.39 547 535 110.8
A 0 50 448929 4046.14 547 535 110.8
A 14 238 327795 2953.07 547 535 110.8
B 8 3 161206 1421.03 580 565 113.0
B 5 70 128569 1132.32 580 565 113.0
B 0 219 39647 345.72 580 565 113.0
C 6 80 79844 619.09 548 551 128.1
C 15 208 13649 102.26 548 551 128.1
C 1 16 11116 82.49 548 551 128.1
D 7 80 205384 1537.25 545 528 133.3
D 2 209 45007 333.77 545 528 133.3
D 12 1 37676 278.76 545 528 133.3

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