ASTROSAT CZTI

Data Quality Report

Orbit 46792

Creation date: 2024-06-27T23:27:41.844209
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_053T01_9000006266_46792cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46792cztM0_level2_quad_clean.evt
Size (bytes)446,359,680101,275,200
Size425.7 MB 96.6 MB
Events in quadrant A6,040,066671,405
Events in quadrant B3,219,178701,879
Events in quadrant C2,611,644671,665
Events in quadrant D4,189,879605,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220331
B0135211
C0121491
D0165391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59522444.099462%
B59531051.763817%
C5953210.352763%
D59532444.098774%

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 7127 5953 85 85 1.19% 1.43%
B 7127 5952 32 32 0.45% 0.54%
C 7128 5953 2 2 0.03% 0.03%
D 7128 5954 232 232 3.25% 3.90%

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 3034020 21981.27 671 656 138.0
A 9 191 219515 1585.96 671 656 138.0
A 13 248 107794 776.38 671 656 138.0
B 3 112 217428 1674.48 673 653 129.5
B 0 198 133606 1027.0 673 653 129.5
B 5 172 47702 363.43 673 653 129.5
C 1 241 23679 151.74 657 661 151.7
C 3 233 13064 81.76 657 661 151.7
C 12 249 7995 48.35 657 661 151.7
D 13 249 745644 4646.32 650 632 160.3
D 13 138 297414 1850.9 650 632 160.3
D 2 37 227288 1413.56 650 632 160.3

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