ASTROSAT CZTI

Data Quality Report

Orbit 17615

Creation date: 2024-06-27T17:38:40.072090
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_027T01_9000002608_17615cztM0_level2.evt modeM0/AS1T03_027T01_9000002608_17615cztM0_level2_quad_clean.evt
Size (bytes)511,876,80074,347,200
Size488.2 MB 70.9 MB
Events in quadrant A3,309,415461,592
Events in quadrant B3,353,694469,643
Events in quadrant C4,776,152441,856
Events in quadrant D3,638,738441,148

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135182
B0137702
C0188932
D0147732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6257641.022854%
B6257961.534282%
C62571562.493208%
D6257701.118747%

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 7577 6258 0 0 0.00% 0.00%
B 7577 6258 0 0 0.00% 0.00%
C 7577 6258 0 0 0.00% 0.00%
D 7577 6258 32 32 0.42% 0.51%

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 13 210 8624 45.64 858 844 170.5
A 0 226 7483 38.95 858 844 170.5
A 12 194 6086 30.75 858 844 170.5
B 12 111 18584 110.9 857 839 160.0
B 11 111 16370 97.06 857 839 160.0
B 14 111 14341 84.38 857 839 160.0
C 3 233 1450718 7771.22 808 817 186.6
C 14 238 126296 672.55 808 817 186.6
C 5 218 45411 239.02 808 817 186.6
D 13 168 468504 2373.17 821 801 197.1
D 13 104 33440 165.61 821 801 197.1
D 2 234 19183 93.27 821 801 197.1

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