ASTROSAT CZTI

Data Quality Report

Orbit 48160

Creation date: 2024-08-24T08:22:14.908453
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_004T05_9000006408_48160cztM0_level2.fits modeM0/AS1C09_004T05_9000006408_48160cztM0_level2_quad_clean.evt
Size (bytes)460,877,76089,412,480
Size439.5 MB 85.3 MB
Events in quadrant A7,627,979752,321
Events in quadrant B1,236,55886
Events in quadrant C4,089,341741,633
Events in quadrant D3,533,531707,143

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273752
B076612
C0177682
D0160662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72663574.913295%
B7265726499.986235%
C72652743.771507%
D7265690.949759%

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 7706 7269 38 38 0.49% 0.52%
B 7704 7234 0 0 0.00% 0.00%
C 7705 7267 200 200 2.60% 2.75%
D 7705 7268 26 26 0.34% 0.36%

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 4533067 27949.42 775 757 162.2
A 13 248 47301 287.02 775 757 162.2
A 0 243 27509 164.97 775 757 162.2
B 2 177 1003563 77708.74 53 52 12.9
B 4 21 8651 665.88 53 52 12.9
B 4 171 5925 454.79 53 52 12.9
C 12 2 1014464 5580.76 768 768 181.6
C 14 254 70785 385.47 768 768 181.6
C 13 61 5191 24.35 768 768 181.6
D 7 67 369083 1885.96 779 754 195.3
D 2 234 37997 190.7 779 754 195.3
D 2 233 36740 184.26 779 754 195.3

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