ASTROSAT CZTI

Data Quality Report

Orbit 47184

Creation date: 2024-06-27T23:32:33.805054
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_037T01_9000006300_47184cztM0_level2.fits modeM0/AS1A13_037T01_9000006300_47184cztM0_level2_quad_clean.evt
Size (bytes)465,382,080112,766,400
Size443.8 MB 107.5 MB
Events in quadrant A6,554,477749,336
Events in quadrant B3,568,194791,390
Events in quadrant C3,147,352744,849
Events in quadrant D3,444,126668,426

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238362
B0151222
C0141662
D0152882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66042303.482738%
B66041382.089643%
C6604520.787402%
D66041692.559055%

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 7789 6604 53 53 0.68% 0.80%
B 7789 6605 55 55 0.71% 0.83%
C 7789 6604 39 39 0.50% 0.59%
D 7789 6605 125 125 1.60% 1.89%

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 3627073 23636.44 744 729 153.4
A 9 191 28559 181.4 744 729 153.4
A 13 248 14061 86.9 744 729 153.4
B 4 21 164529 1116.59 753 732 146.7
B 0 190 109572 741.95 753 732 146.7
B 15 201 72564 489.67 753 732 146.7
C 14 254 241991 1395.73 736 741 172.8
C 15 208 31083 175.54 736 741 172.8
C 13 61 4952 24.36 736 741 172.8
D 13 70 175876 961.64 723 699 182.2
D 12 218 149369 816.13 723 699 182.2
D 1 47 125980 687.73 723 699 182.2

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