ASTROSAT CZTI

Data Quality Report

Orbit 30963

Creation date: 2024-06-27T20:21:41.493819
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/AS1A10_058T11_9000004474_30963cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30963cztM0_level2_quad_clean.evt
Size (bytes)558,455,040113,379,840
Size532.6 MB 108.1 MB
Events in quadrant A3,274,440760,452
Events in quadrant B5,196,841770,887
Events in quadrant C3,729,825741,405
Events in quadrant D4,288,989725,067

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134972
B0194912
C0149712
D0168322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6243230.368413%
B62431402.242512%
C62432233.572001%
D62431622.594906%

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 7578 6244 0 0 0.00% 0.00%
B 7578 6244 15 15 0.20% 0.24%
C 7578 6243 78 78 1.03% 1.25%
D 7578 6244 111 111 1.46% 1.78%

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 11 47 28880 169.15 841 827 165.8
A 13 254 10194 56.48 841 827 165.8
A 3 137 7897 42.63 841 827 165.8
B 6 159 1812087 11490.89 840 822 157.6
B 4 80 63338 396.61 840 822 157.6
B 12 111 18662 113.18 840 822 157.6
C 0 10 357321 1865.13 822 834 191.1
C 14 238 133202 692.55 822 834 191.1
C 3 233 18892 94.48 822 834 191.1
D 13 174 488452 2477.84 828 809 196.8
D 2 250 395843 2007.27 828 809 196.8
D 8 195 248825 1260.23 828 809 196.8

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