ASTROSAT CZTI

Data Quality Report

Orbit 44997

Creation date: 2024-06-27T23:08:52.453958
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/AS1A13_020T01_9000006040_44997cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_44997cztM0_level2_quad_clean.evt
Size (bytes)567,394,560114,759,360
Size541.1 MB 109.4 MB
Events in quadrant A6,861,794772,685
Events in quadrant B3,678,977805,442
Events in quadrant C3,321,652780,160
Events in quadrant D6,623,681651,717

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252651
B0152533
C0142741
D0244781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66733214.810430%
B66721832.742806%
C66721141.708633%
D667384512.662970%

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 7778 6674 24 24 0.31% 0.36%
B 7777 6673 13 13 0.17% 0.19%
C 7777 6673 17 17 0.22% 0.25%
D 7778 6674 603 603 7.75% 9.04%

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 10 83 2640378 15815.26 807 789 166.9
A 0 247 946465 5666.07 807 789 166.9
A 0 226 59897 354.15 807 789 166.9
B 0 155 107359 677.88 810 788 157.2
B 0 168 100734 635.74 810 788 157.2
B 5 255 71525 449.95 810 788 157.2
C 12 2 52194 273.09 800 806 188.2
C 14 254 46129 240.86 800 806 188.2
C 1 3 39597 206.15 800 806 188.2
D 1 52 1196303 6177.35 773 750 193.5
D 13 249 1042839 5384.41 773 750 193.5
D 11 241 556048 2869.19 773 750 193.5

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