ASTROSAT CZTI

Data Quality Report

Orbit 03719

Creation date: 2024-06-27T14:32:48.904093
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_182T01_9000000484_03719cztM0_level2.evt modeM0/AS1G05_182T01_9000000484_03719cztM0_level2_quad_clean.evt
Size (bytes)498,899,52067,190,400
Size475.8 MB 64.1 MB
Events in quadrant A3,582,362405,436
Events in quadrant B3,812,436405,079
Events in quadrant C4,060,749398,734
Events in quadrant D3,226,907386,013

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144583
B0151902
C0159922
D0136142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62871983.149356%
B62872133.387943%
C62872854.533164%
D6287961.526960%

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 7567 6287 56 56 0.74% 0.89%
B 7567 6287 57 57 0.75% 0.91%
C 7567 6287 164 164 2.17% 2.61%
D 7567 6287 18 18 0.24% 0.29%

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 332910 2029.5 812 797 163.6
A 0 50 42173 252.84 812 797 163.6
A 0 226 37822 226.26 812 797 163.6
B 2 249 271216 1725.42 817 798 156.7
B 15 204 244739 1556.48 817 798 156.7
B 4 81 72794 459.38 817 798 156.7
C 2 53 1019919 5653.51 773 776 180.3
C 1 16 15542 81.91 773 776 180.3
C 13 61 6392 31.15 773 776 180.3
D 14 34 90532 483.15 779 759 185.8
D 4 160 43278 228.83 779 759 185.8
D 13 223 23248 121.03 779 759 185.8

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
Veto Counter