ASTROSAT CZTI

Data Quality Report

Orbit 47128

Creation date: 2024-06-27T23:32:02.572400
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/AS1C09_003T01_9000006298_47128cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47128cztM0_level2_quad_clean.evt
Size (bytes)460,206,72099,878,400
Size438.9 MB 95.3 MB
Events in quadrant A6,039,213675,345
Events in quadrant B3,714,416686,162
Events in quadrant C3,347,006639,914
Events in quadrant D3,467,212601,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224191
B0149431
C0145521
D0147281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60231482.457247%
B60231602.656483%
C60241752.905046%
D60241452.407039%

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 7213 6024 22 22 0.31% 0.37%
B 7213 6024 103 103 1.43% 1.71%
C 7214 6025 161 161 2.23% 2.67%
D 7214 6025 114 114 1.58% 1.89%

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 3352207 24389.21 670 659 137.4
A 9 191 29236 207.95 670 659 137.4
A 0 247 25384 179.92 670 659 137.4
B 15 201 429359 3327.79 663 645 128.8
B 5 32 223736 1731.69 663 645 128.8
B 4 21 134653 1040.2 663 645 128.8
C 15 208 823145 5511.99 640 642 149.2
C 14 254 10957 69.13 640 642 149.2
C 3 233 9922 62.19 640 642 149.2
D 12 233 220555 1372.33 646 626 160.3
D 8 48 147057 913.71 646 626 160.3
D 14 34 129201 802.29 646 626 160.3

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