ASTROSAT CZTI

Data Quality Report

Orbit 47720

Creation date: 2024-07-25T12:48:18.354644
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/AS1T05_213T01_9000006344_47720cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47720cztM0_level2_quad_clean.evt
Size (bytes)506,410,560112,680,000
Size483.0 MB 107.5 MB
Events in quadrant A6,945,541745,026
Events in quadrant B3,622,938777,141
Events in quadrant C3,008,797761,283
Events in quadrant D4,650,780663,167

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255772
B0152442
C0136952
D0184792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66742704.045550%
B66741221.827989%
C6674600.899011%
D66743725.573869%

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 8874 6676 47 47 0.53% 0.70%
B 8874 6674 42 42 0.47% 0.63%
C 8874 6675 4 4 0.05% 0.06%
D 8874 6674 237 237 2.67% 3.55%

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 3946167 25049.13 758 740 157.5
A 9 191 61347 384.79 758 740 157.5
A 0 243 12017 71.6 758 740 157.5
B 5 32 182099 1226.11 760 736 147.9
B 0 186 174338 1173.64 760 736 147.9
B 5 255 108225 726.68 760 736 147.9
C 14 254 16418 87.52 767 771 178.8
C 13 61 5066 24.02 767 771 178.8
C 12 250 4415 20.38 767 771 178.8
D 2 165 1218743 6599.76 748 725 184.6
D 12 2 129924 700.06 748 725 184.6
D 2 249 105278 566.51 748 725 184.6

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