ASTROSAT CZTI

Data Quality Report

Orbit 46292

Creation date: 2024-06-27T23:21:22.207909
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_072T02_9000006194_46292cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46292cztM0_level2_quad_clean.evt
Size (bytes)581,840,640132,076,800
Size554.9 MB 126.0 MB
Events in quadrant A7,201,510866,113
Events in quadrant B5,056,034901,125
Events in quadrant C3,864,646874,410
Events in quadrant D4,774,404783,104

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268780
B0206560
C0176860
D0204600

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82702543.071342%
B82711832.212550%
C8271380.459437%
D82702793.373640%

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 8270 8270 122 122 1.48% 1.48%
B 8271 8271 3 3 0.04% 0.04%
C 8271 8271 27 27 0.33% 0.33%
D 8270 8270 202 202 2.44% 2.44%

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 3059646 15616.74 934 914 195.9
A 15 223 306240 1558.88 934 914 195.9
A 2 79 209872 1066.86 934 914 195.9
B 3 112 1231679 6550.47 930 899 187.9
B 0 190 60225 315.75 930 899 187.9
B 5 255 46021 240.15 930 899 187.9
C 1 3 186309 845.37 930 934 219.3
C 12 250 21049 91.73 930 934 219.3
C 12 2 17791 76.87 930 934 219.3
D 13 249 706432 3053.12 915 887 231.1
D 1 52 500155 2160.49 915 887 231.1
D 11 192 62548 266.83 915 887 231.1

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