ASTROSAT CZTI

Data Quality Report

Orbit 07116

Creation date: 2024-06-27T15:15:46.995871
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/AS1A02_090T01_9000000970_07116cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07116cztM0_level2_quad_clean.evt
Size (bytes)489,810,24097,398,720
Size467.1 MB 92.9 MB
Events in quadrant A3,114,791634,911
Events in quadrant B3,514,946640,805
Events in quadrant C3,162,728627,883
Events in quadrant D4,584,756577,086

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138222
B0148751
C0139151
D0181941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6727280.416233%
B6727891.323027%
C6727220.327040%
D67273304.905604%

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 7732 6728 0 0 0.00% 0.00%
B 7732 6727 48 48 0.62% 0.71%
C 7732 6727 11 11 0.14% 0.16%
D 7732 6728 278 278 3.60% 4.13%

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 8 15 23404 137.72 800 783 164.2
A 0 226 7600 41.5 800 783 164.2
A 12 194 7273 39.51 800 783 164.2
B 0 219 178331 1150.56 804 787 154.3
B 3 220 147931 953.56 804 787 154.3
B 0 214 26062 163.79 804 787 154.3
C 4 254 98077 531.46 780 787 183.1
C 9 68 9086 45.33 780 787 183.1
C 13 61 6046 28.73 780 787 183.1
D 2 216 1173638 6189.61 763 741 189.5
D 8 195 269108 1416.22 763 741 189.5
D 7 55 99663 522.03 763 741 189.5

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