ASTROSAT CZTI

Data Quality Report

Orbit 22232

Creation date: 2024-06-27T18:38:23.050867
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/AS1T03_147T01_9000003290_22232cztM0_level2.evt modeM0/AS1T03_147T01_9000003290_22232cztM0_level2_quad_clean.evt
Size (bytes)446,002,56091,990,080
Size425.3 MB 87.7 MB
Events in quadrant A3,028,033608,972
Events in quadrant B3,083,191627,147
Events in quadrant C3,085,860584,133
Events in quadrant D3,917,907561,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122301
B0124061
C0124521
D0153471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5776430.744460%
B5776500.865651%
C5776841.454294%
D5776480.831025%

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 7076 5777 0 0 0.00% 0.00%
B 7076 5777 0 0 0.00% 0.00%
C 7076 5777 0 0 0.00% 0.00%
D 7076 5777 10 10 0.14% 0.17%

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 13 254 7841 45.75 785 771 154.5
A 0 226 6762 38.77 785 771 154.5
A 3 137 6145 34.78 785 771 154.5
B 12 111 17107 113.75 783 766 143.7
B 11 111 15054 99.46 783 766 143.7
B 14 111 13936 91.67 783 766 143.7
C 14 238 122364 696.82 758 765 174.5
C 13 61 5129 25.01 758 765 174.5
C 0 10 3998 18.53 758 765 174.5
D 2 16 681663 3760.68 761 741 181.1
D 1 52 341366 1881.25 761 741 181.1
D 2 234 21049 112.16 761 741 181.1

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