ASTROSAT CZTI

Data Quality Report

Orbit 45719

Creation date: 2024-06-27T23:15:21.466157
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/AS1A13_028T01_9000006122_45719cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45719cztM0_level2_quad_clean.evt
Size (bytes)1,269,207,360290,079,360
Size1.2 GB 276.6 MB
Events in quadrant A15,802,0541,929,864
Events in quadrant B9,778,3941,978,409
Events in quadrant C8,155,2801,923,243
Events in quadrant D11,853,5731,709,283

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0594513
B0412483
C0371503
D0478543

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180224092.269448%
B180223892.158473%
C180231320.732397%
D180236303.495533%

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 20772 18022 56 56 0.27% 0.31%
B 20772 18022 214 214 1.03% 1.19%
C 20773 18023 15 15 0.07% 0.08%
D 20773 18023 488 488 2.35% 2.71%

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 7436543 17971.0 2013 1968 413.7
A 7 3 375733 903.47 2013 1968 413.7
A 2 79 117242 278.64 2013 1968 413.7
B 15 201 967489 2490.64 2003 1943 387.7
B 3 112 643854 1655.82 2003 1943 387.7
B 0 189 71899 180.45 2003 1943 387.7
C 0 207 70875 146.21 2010 2026 470.9
C 12 2 63528 130.61 2010 2026 470.9
C 12 16 56765 116.25 2010 2026 470.9
D 1 52 2167924 4420.08 1973 1915 490.0
D 13 249 1223534 2492.9 1973 1915 490.0
D 1 47 365743 742.45 1973 1915 490.0

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