ASTROSAT CZTI

Data Quality Report

Orbit 47716

Creation date: 2024-07-25T08:10:15.452231
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/AS1T05_213T01_9000006344_47716cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47716cztM0_level2_quad_clean.evt
Size (bytes)1,309,504,320287,873,280
Size1.2 GB 274.5 MB
Events in quadrant A18,577,2121,888,304
Events in quadrant B9,771,6491,940,485
Events in quadrant C8,005,9291,904,701
Events in quadrant D10,682,1161,700,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0674823
B0420913
C0380363
D0452643

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185926033.243330%
B185924562.452668%
C18592900.484079%
D185935993.221643%

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 20366 18592 36 36 0.18% 0.19%
B 20366 18591 200 200 0.98% 1.08%
C 20366 18592 11 11 0.05% 0.06%
D 20367 18593 584 584 2.87% 3.14%

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 10 83 10501680 25197.81 2011 1970 416.7
A 9 191 151815 359.61 2011 1970 416.7
A 13 248 113688 268.11 2011 1970 416.7
B 0 200 449998 1149.77 2004 1936 389.7
B 10 14 440180 1124.57 2004 1936 389.7
B 0 186 231542 589.19 2004 1936 389.7
C 14 254 128462 270.65 1994 2001 467.3
C 12 2 82860 173.05 1994 2001 467.3
C 12 249 26633 52.72 1994 2001 467.3
D 10 181 1675443 3381.35 1980 1918 494.9
D 2 165 653698 1316.92 1980 1918 494.9
D 2 249 220566 441.78 1980 1918 494.9

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