ASTROSAT CZTI

Data Quality Report

Orbit 45594

Creation date: 2024-06-27T23:14:00.483505
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_071T04_9000006110_45594cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45594cztM0_level2_quad_clean.evt
Size (bytes)160,545,60034,513,920
Size153.1 MB 32.9 MB
Events in quadrant A2,025,193222,122
Events in quadrant B1,059,025237,428
Events in quadrant C922,973227,800
Events in quadrant D1,765,414201,550

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074811
B046731
C044351
D067711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21621346.197965%
B2162361.665125%
C216270.323774%
D21621386.382979%

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 2162 2162 2 2 0.09% 0.09%
B 2162 2162 5 5 0.23% 0.23%
C 2162 2162 0 0 0.00% 0.00%
D 2162 2162 87 87 4.02% 4.02%

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 1077054 20923.23 239 233 51.5
A 0 243 12302 234.51 239 233 51.5
A 13 248 5480 101.95 239 233 51.5
B 15 201 36156 716.86 243 236 50.1
B 0 186 33062 655.11 243 236 50.1
B 3 112 20497 404.35 243 236 50.1
C 12 2 3232 53.11 234 234 56.4
C 8 128 1822 28.13 234 234 56.4
C 13 61 1640 24.91 234 234 56.4
D 1 52 460080 7828.2 227 218 58.7
D 11 241 215064 3657.31 227 218 58.7
D 5 171 72914 1237.5 227 218 58.7

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