ASTROSAT CZTI

Data Quality Report

Orbit 45683

Creation date: 2024-06-27T23:15:00.926133
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_071T05_9000006120_45683cztM0_level2.fits modeM0/AS1A13_071T05_9000006120_45683cztM0_level2_quad_clean.evt
Size (bytes)751,919,040112,671,360
Size717.1 MB 107.5 MB
Events in quadrant A6,525,003793,690
Events in quadrant B4,009,246814,729
Events in quadrant C9,573,197603,629
Events in quadrant D7,146,003676,707

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244240
B0171020
C0337120
D0265420

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75061241.652012%
B75071031.372053%
C7506206327.484679%
D75066718.939515%

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 7506 7506 10 10 0.13% 0.13%
B 7507 7507 43 43 0.57% 0.57%
C 7506 7506 2260 2260 30.11% 30.11%
D 7506 7506 540 540 7.19% 7.19%

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 3094650 17546.02 834 813 176.3
A 13 248 86555 486.27 834 813 176.3
A 14 235 47594 265.31 834 813 176.3
B 5 255 262671 1577.38 838 813 166.0
B 3 112 130223 779.54 838 813 166.0
B 5 172 77708 463.2 838 813 166.0
C 9 54 6293971 34987.84 758 761 179.9
C 14 254 247089 1369.49 758 761 179.9
C 12 2 56681 310.89 758 761 179.9
D 1 52 2068451 10224.72 794 770 202.2
D 11 241 1274599 6299.11 794 770 202.2
D 13 249 245021 1207.83 794 770 202.2

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