ASTROSAT CZTI

Data Quality Report

Orbit 29465

Creation date: 2024-06-27T20:04:22.947942
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/AS1A10_102T08_9000004240_29465cztM0_level2.evt modeM0/AS1A10_102T08_9000004240_29465cztM0_level2_quad_clean.evt
Size (bytes)1,435,993,920132,252,480
Size1.3 GB 126.1 MB
Events in quadrant A5,588,653884,739
Events in quadrant B5,672,689892,099
Events in quadrant C5,801,675846,633
Events in quadrant D25,639,484571,920

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241735
B0243332
C0245542
D0841542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02380
B02380
C02380
D02380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A116701971.688089%
B116712331.996401%
C116713843.290206%
D11671792767.920487%

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 12700 11672 0 0 0.00% 0.00%
B 12701 11673 3 3 0.02% 0.03%
C 12701 11673 0 0 0.00% 0.00%
D 12701 11672 7587 7587 59.74% 65.00%

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 1 113 22688 72.91 1437 1406 291.9
A 13 254 22476 72.18 1437 1406 291.9
A 5 98 17914 56.55 1437 1406 291.9
B 12 111 34732 121.76 1423 1388 273.8
B 11 111 31708 110.72 1423 1388 273.8
B 14 111 28580 99.3 1423 1388 273.8
C 14 238 269256 833.73 1366 1378 321.3
C 3 233 100060 307.13 1366 1378 321.3
C 14 254 70764 215.95 1366 1378 321.3
D 8 195 11713804 47226.48 1032 1003 248.0
D 7 80 6455839 26026.16 1032 1003 248.0
D 1 52 1530621 6167.48 1032 1003 248.0

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