ASTROSAT CZTI

Data Quality Report

Orbit 16322

Creation date: 2024-06-27T17:21:01.448569
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/AS1A05_096T04_9000002406_16322cztM0_level2.evt modeM0/AS1A05_096T04_9000002406_16322cztM0_level2_quad_clean.evt
Size (bytes)509,431,680105,672,960
Size485.8 MB 100.8 MB
Events in quadrant A3,081,595694,821
Events in quadrant B5,140,146679,521
Events in quadrant C3,212,481686,537
Events in quadrant D3,537,477670,703

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137673
B0199432
C0138312
D0152982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6731170.252563%
B67316549.716238%
C6731340.505126%
D67311432.124499%

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 7787 6733 1 1 0.01% 0.01%
B 7787 6733 385 385 4.94% 5.72%
C 7787 6733 0 0 0.00% 0.00%
D 7787 6733 109 109 1.40% 1.62%

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 15 174 45930 284.41 787 770 158.8
A 0 226 7086 39.78 787 770 158.8
A 12 194 5742 31.31 787 770 158.8
B 3 112 1916989 13076.61 769 749 146.5
B 0 189 53848 362.35 769 749 146.5
B 0 219 48917 328.7 769 749 146.5
C 14 238 119988 666.6 766 772 178.8
C 3 233 93048 515.96 766 772 178.8
C 0 207 9385 48.16 766 772 178.8
D 12 110 377579 2039.23 763 740 184.8
D 2 122 130923 704.47 763 740 184.8
D 13 168 45048 239.77 763 740 184.8

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