ASTROSAT CZTI

Data Quality Report

Orbit 44001

Creation date: 2024-06-27T22:58:08.966944
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_034T03_9000005926_44001cztM0_level2.fits modeM0/AS1A13_034T03_9000005926_44001cztM0_level2_quad_clean.evt
Size (bytes)618,333,120125,472,960
Size589.7 MB 119.7 MB
Events in quadrant A7,349,959782,969
Events in quadrant B3,904,344885,157
Events in quadrant C4,600,317848,121
Events in quadrant D6,415,103727,602

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276190
B0170330
C0187316
D0244510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A798388111.035951%
B79831351.691094%
C7982871.089952%
D79846027.540080%

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 7983 7983 548 548 6.86% 6.86%
B 7983 7983 16 16 0.20% 0.20%
C 7984 7983 34 34 0.43% 0.43%
D 7984 7984 460 460 5.76% 5.76%

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 14 238 1592503 8639.56 881 860 184.2
A 10 83 1169825 6345.23 881 860 184.2
A 15 223 1167044 6330.13 881 860 184.2
B 0 213 69085 378.36 913 884 180.3
B 4 171 58425 319.22 913 884 180.3
B 15 36 43760 237.86 913 884 180.3
C 3 233 782988 3689.18 896 900 212.0
C 14 254 179875 844.24 896 900 212.0
C 15 157 79247 369.57 896 900 212.0
D 1 52 1007924 4586.77 875 848 219.6
D 5 235 946037 4304.91 875 848 219.6
D 4 221 190849 865.37 875 848 219.6

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