ASTROSAT CZTI

Data Quality Report

Orbit 46364

Creation date: 2024-06-27T23:22:16.152131
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_068T02_9000006200_46364cztM0_level2.fits modeM0/AS1A13_068T02_9000006200_46364cztM0_level2_quad_clean.evt
Size (bytes)642,162,240125,328,960
Size612.4 MB 119.5 MB
Events in quadrant A7,158,878842,434
Events in quadrant B4,606,167853,286
Events in quadrant C5,623,905806,699
Events in quadrant D5,769,354741,847

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266611
B0191610
C0223790
D0227340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79151011.276058%
B79161451.831733%
C79163604.547751%
D79164115.192016%

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 7915 7915 4 4 0.05% 0.05%
B 7916 7916 78 78 0.99% 0.99%
C 7916 7916 303 303 3.83% 3.83%
D 7916 7916 264 264 3.34% 3.34%

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 3519704 19084.03 880 862 184.4
A 0 247 109129 587.17 880 862 184.4
A 0 243 28651 150.71 880 862 184.4
B 5 172 329353 1874.66 875 849 175.2
B 0 189 248959 1415.88 875 849 175.2
B 5 255 209235 1189.19 875 849 175.2
C 14 254 1558078 7788.35 854 858 199.9
C 4 254 622074 3106.98 854 858 199.9
C 12 249 55881 275.19 854 858 199.9
D 1 52 1933761 9009.6 854 827 214.5
D 13 249 100919 466.54 854 827 214.5
D 12 1 66521 306.21 854 827 214.5

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