ASTROSAT CZTI

Data Quality Report

Orbit 06126

Creation date: 2024-06-27T15:03:06.729863
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/AS1G06_019T01_9000000796_06126cztM0_level2.evt modeM0/AS1G06_019T01_9000000796_06126cztM0_level2_quad_clean.evt
Size (bytes)608,313,60090,115,200
Size580.1 MB 85.9 MB
Events in quadrant A7,885,043542,454
Events in quadrant B3,456,821571,207
Events in quadrant C3,234,563562,463
Events in quadrant D3,352,911545,336

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02846298
B01534451
C01485927
D01542020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01482
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72856098.359643%
B7287470.644984%
C7292230.315414%
D7296630.863487%

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 7590 7305 685 685 9.03% 9.38%
B 7590 7305 5 5 0.07% 0.07%
C 7590 7306 0 0 0.00% 0.00%
D 7590 7306 32 32 0.42% 0.44%

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 8 15 4709102 28284.98 818 799 166.5
A 4 2 18179 104.41 818 799 166.5
A 12 194 7892 42.61 818 799 166.5
B 3 64 68565 414.52 843 822 163.4
B 15 204 31250 186.19 843 822 163.4
B 8 3 24589 145.43 843 822 163.4
C 9 68 33691 172.48 813 818 190.6
C 1 16 18394 92.22 813 818 190.6
C 13 61 6531 29.98 813 818 190.6
D 13 169 101229 505.09 809 785 198.9
D 13 105 42154 208.03 809 785 198.9
D 7 55 41554 205.01 809 785 198.9

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