ASTROSAT CZTI

Data Quality Report

Orbit 23607

Creation date: 2024-06-27T18:56:44.670807
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_178T01_9000003488_23607cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23607cztM0_level2_quad_clean.evt
Size (bytes)501,465,600100,235,520
Size478.2 MB 95.6 MB
Events in quadrant A3,190,529648,913
Events in quadrant B4,482,489680,014
Events in quadrant C3,518,501644,685
Events in quadrant D3,565,405619,899

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132542
B0172062
C0141752
D0146232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6338200.315557%
B63384827.604923%
C63381101.735563%
D6338400.631114%

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 7653 6339 0 0 0.00% 0.00%
B 7653 6339 424 424 5.54% 6.69%
C 7653 6339 45 45 0.59% 0.71%
D 7653 6339 25 25 0.33% 0.39%

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 10181 57.26 826 813 163.6
A 0 226 6922 37.34 826 813 163.6
A 3 137 6908 37.26 826 813 163.6
B 3 64 1259941 8315.6 813 795 151.4
B 12 111 18150 114.62 813 795 151.4
B 0 189 16743 105.32 813 795 151.4
C 0 10 148732 779.2 817 825 189.8
C 14 238 128644 673.37 817 825 189.8
C 10 9 49824 258.13 817 825 189.8
D 1 52 497911 2552.61 810 790 194.8
D 2 234 24472 121.6 810 790 194.8
D 14 226 7788 35.93 810 790 194.8

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