ASTROSAT CZTI

Data Quality Report

Orbit 47369

Creation date: 2024-07-01T23:23:56.564587
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_093T25_9000006324_47369cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47369cztM0_level2_quad_clean.evt
Size (bytes)491,091,840106,142,400
Size468.3 MB 101.2 MB
Events in quadrant A6,976,735706,157
Events in quadrant B3,279,976729,005
Events in quadrant C3,016,204694,808
Events in quadrant D4,398,075626,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250541
B0140461
C0137651
D0177661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65482353.588882%
B6549701.068865%
C6549240.366468%
D65492814.290731%

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 7488 6548 54 54 0.72% 0.82%
B 7489 6550 24 24 0.32% 0.37%
C 7489 6550 8 8 0.11% 0.12%
D 7489 6550 215 215 2.87% 3.28%

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 3656719 23619.15 739 724 154.8
A 9 191 348859 2249.09 739 724 154.8
A 9 240 93718 600.78 739 724 154.8
B 0 200 133441 902.3 737 715 147.1
B 0 186 48794 326.85 737 715 147.1
B 0 190 45540 304.73 737 715 147.1
C 0 207 72631 420.19 722 725 171.1
C 12 2 53050 305.77 722 725 171.1
C 3 233 50391 290.23 722 725 171.1
D 2 165 1051225 5825.54 716 694 180.3
D 12 2 345747 1913.43 716 694 180.3
D 2 249 140957 777.8 716 694 180.3

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