ASTROSAT CZTI

Data Quality Report

Orbit 03197

Creation date: 2024-06-27T14:25:47.996404
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_127T01_9000000436_03197cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03197cztM0_level2_quad_clean.evt
Size (bytes)540,403,20089,130,240
Size515.4 MB 85.0 MB
Events in quadrant A2,950,010575,309
Events in quadrant B3,100,033584,504
Events in quadrant C6,371,053553,045
Events in quadrant D3,516,000544,377

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130992
B0134562
C0233572
D0150242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6334280.442059%
B6334340.536786%
C63344487.072940%
D63341362.147142%

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 7564 6335 8 8 0.11% 0.13%
B 7564 6334 2 2 0.03% 0.03%
C 7564 6334 373 373 4.93% 5.89%
D 7564 6335 126 126 1.67% 1.99%

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 33521 213.98 750 736 153.2
A 3 1 11887 72.78 750 736 153.2
A 0 226 10958 66.72 750 736 153.2
B 4 80 41903 278.01 770 753 148.0
B 0 231 16208 104.41 770 753 148.0
B 2 249 13997 89.48 770 753 148.0
C 12 206 3072217 18389.66 719 724 167.0
C 14 223 401357 2398.67 719 724 167.0
C 6 80 37596 220.76 719 724 167.0
D 13 223 405205 2295.44 714 699 176.2
D 13 120 136028 767.95 714 699 176.2
D 5 233 82686 465.25 714 699 176.2

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