ASTROSAT CZTI

Data Quality Report

Orbit 03752

Creation date: 2024-06-27T14:33:14.695222
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/AS1G05_248T01_9000000486_03752cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03752cztM0_level2_quad_clean.evt
Size (bytes)498,660,48072,887,040
Size475.6 MB 69.5 MB
Events in quadrant A4,524,979437,094
Events in quadrant B3,774,596447,946
Events in quadrant C2,866,994443,037
Events in quadrant D3,496,483427,518

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177862
B0155381
C0133181
D0150151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64653775.831400%
B6465921.423047%
C6465470.726991%
D64651802.784223%

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 6860 6467 193 193 2.81% 2.98%
B 6860 6467 10 10 0.15% 0.15%
C 6860 6467 0 0 0.00% 0.00%
D 6860 6467 116 116 1.69% 1.79%

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 0 118 732970 4813.68 738 719 152.1
A 13 251 589437 3870.12 738 719 152.1
A 8 15 117575 768.19 738 719 152.1
B 15 204 331093 2213.02 755 736 149.3
B 14 167 219892 1468.1 755 736 149.3
B 0 173 107019 711.98 755 736 149.3
C 13 61 6203 31.82 728 732 171.9
C 12 4 5637 28.53 728 732 171.9
C 8 128 5074 25.25 728 732 171.9
D 10 246 229473 1290.27 726 705 177.3
D 1 20 149413 838.73 726 705 177.3
D 13 239 114879 643.95 726 705 177.3

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
Veto Counter