ASTROSAT CZTI

Data Quality Report

Orbit 45294

Creation date: 2024-06-27T23:12:03.717045
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_073T04_9000006066_45294cztM0_level2.fits modeM0/AS1A13_073T04_9000006066_45294cztM0_level2_quad_clean.evt
Size (bytes)1,040,774,400225,679,680
Size992.6 MB 215.2 MB
Events in quadrant A11,729,2291,488,589
Events in quadrant B7,681,7951,520,092
Events in quadrant C7,206,7431,515,609
Events in quadrant D10,796,0021,315,915

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02900
B02900
C02900
D02900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0451572
B0330492
C0319252
D0421252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143764663.241514%
B143766214.319699%
C143762621.822482%
D1437510797.506087%

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 15501 14377 60 60 0.39% 0.42%
B 15501 14376 254 254 1.64% 1.77%
C 15501 14377 154 154 0.99% 1.07%
D 15500 14376 839 839 5.41% 5.84%

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 5165997 15226.43 1624 1585 339.2
A 13 248 209666 613.49 1624 1585 339.2
A 10 248 40297 114.14 1624 1585 339.2
B 5 32 1053119 3366.03 1606 1555 312.4
B 0 189 70536 220.81 1606 1555 312.4
B 12 111 40950 126.1 1606 1555 312.4
C 14 254 753728 1986.42 1606 1613 378.6
C 2 14 128504 335.13 1606 1613 378.6
C 3 233 44586 113.5 1606 1613 378.6
D 2 249 2695467 6786.24 1573 1525 397.0
D 13 249 1102453 2773.32 1573 1525 397.0
D 12 233 280547 702.88 1573 1525 397.0

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