ASTROSAT CZTI

Data Quality Report

Orbit 46436

Creation date: 2024-06-27T23:23:11.896239
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_062T01_9000006208_46436cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46436cztM0_level2_quad_clean.evt
Size (bytes)571,639,680135,397,440
Size545.2 MB 129.1 MB
Events in quadrant A6,969,718906,285
Events in quadrant B4,592,043910,926
Events in quadrant C4,436,469889,378
Events in quadrant D4,516,412814,495

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259050
B0194310
C0188070
D0193991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83261201.441268%
B83262803.362959%
C8327820.984748%
D83261411.693490%

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 8326 8326 4 4 0.05% 0.05%
B 8326 8326 156 156 1.87% 1.87%
C 8327 8327 55 55 0.66% 0.66%
D 8326 8326 119 119 1.43% 1.43%

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 3120490 15323.01 974 952 203.6
A 2 79 59133 285.78 974 952 203.6
A 3 7 16227 75.03 974 952 203.6
B 0 189 726824 3792.98 957 928 191.4
B 3 112 29915 151.46 957 928 191.4
B 12 111 26048 131.26 957 928 191.4
C 14 254 472685 2097.9 957 962 224.9
C 3 233 177434 784.83 957 962 224.9
C 1 3 39460 171.21 957 962 224.9
D 13 249 685566 2861.97 957 927 239.2
D 7 38 91226 377.47 957 927 239.2
D 2 249 53661 220.44 957 927 239.2

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