ASTROSAT CZTI

Data Quality Report

Orbit 03674

Creation date: 2024-06-27T14:32:20.084012
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_201T01_9000000478_03674cztM0_level2.evt modeM0/AS1G05_201T01_9000000478_03674cztM0_level2_quad_clean.evt
Size (bytes)438,615,36069,379,200
Size418.3 MB 66.2 MB
Events in quadrant A3,091,347420,598
Events in quadrant B3,650,516415,927
Events in quadrant C3,039,270413,507
Events in quadrant D3,065,721402,554

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133720
B0147750
C0133480
D0136300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6423721.120972%
B64231422.210805%
C6423440.685038%
D6423791.229955%

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 7578 6424 0 0 0.00% 0.00%
B 7578 6424 41 41 0.54% 0.64%
C 7578 6424 3 3 0.04% 0.05%
D 7578 6424 32 32 0.42% 0.50%

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 13 164 25425 153.36 787 771 160.8
A 0 50 11018 63.74 787 771 160.8
A 13 251 10858 62.75 787 771 160.8
B 14 167 200058 1299.26 792 774 153.4
B 15 204 183491 1191.25 792 774 153.4
B 4 81 76208 491.8 792 774 153.4
C 9 247 65253 365.25 755 759 176.6
C 12 4 15848 85.45 755 759 176.6
C 8 208 6347 31.65 755 759 176.6
D 13 223 118202 654.77 753 734 179.4
D 10 34 24896 134.68 753 734 179.4
D 10 187 24826 134.29 753 734 179.4

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