ASTROSAT CZTI

Data Quality Report

Orbit 30398

Creation date: 2024-06-27T20:14:43.967758
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/AS1A10_053T20_9000004372_30398cztM0_level2.evt modeM0/AS1A10_053T20_9000004372_30398cztM0_level2_quad_clean.evt
Size (bytes)547,902,72072,336,960
Size522.5 MB 69.0 MB
Events in quadrant A3,297,037455,241
Events in quadrant B5,203,382456,785
Events in quadrant C3,355,289432,835
Events in quadrant D4,331,830426,802

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134411
B0190842
C0134781
D0165901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5993851.418321%
B59932053.420657%
C59931923.203738%
D59931893.153679%

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 7298 5993 6 6 0.08% 0.10%
B 7298 5993 39 39 0.53% 0.65%
C 7298 5993 0 0 0.00% 0.00%
D 7298 5993 141 141 1.93% 2.35%

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 0 13 41141 243.49 835 820 165.6
A 11 242 14135 80.41 835 820 165.6
A 8 192 12174 68.56 835 820 165.6
B 6 159 1704737 11085.15 822 805 153.7
B 0 229 259774 1684.76 822 805 153.7
B 12 111 18130 112.71 822 805 153.7
C 14 238 163023 899.6 788 796 180.3
C 14 254 45601 248.46 788 796 180.3
C 10 22 42545 231.51 788 796 180.3
D 8 195 1098123 5914.85 795 777 185.5
D 13 249 112178 600.47 795 777 185.5
D 13 104 43860 232.22 795 777 185.5

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