ASTROSAT CZTI

Data Quality Report

Orbit 47566

Creation date: 2024-07-15T04:17:00.021242
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_002T01_9000006334_47566cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47566cztM0_level2_quad_clean.evt
Size (bytes)615,458,880122,866,560
Size586.9 MB 117.2 MB
Events in quadrant A8,121,609822,026
Events in quadrant B3,955,986863,739
Events in quadrant C3,384,013830,873
Events in quadrant D6,714,754659,701

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292571
B0172951
C0160041
D0254691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78204215.383632%
B7819770.984781%
C7819120.153472%
D7819106713.646246%

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 7820 7820 65 65 0.83% 0.83%
B 7819 7819 2 2 0.03% 0.03%
C 7819 7819 0 0 0.00% 0.00%
D 7819 7819 962 962 12.30% 12.30%

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 4387900 24467.21 858 838 179.3
A 9 191 364641 2028.98 858 838 179.3
A 13 248 36387 198.26 858 838 179.3
B 0 200 330043 1947.1 867 840 169.1
B 0 190 65296 381.23 867 840 169.1
B 5 32 59179 345.05 867 840 169.1
C 14 254 34616 168.93 851 852 199.9
C 3 233 21928 105.45 851 852 199.9
C 1 3 11771 54.63 851 852 199.9
D 2 165 2893333 14691.67 791 766 196.9
D 2 249 215270 1089.49 791 766 196.9
D 7 55 106898 539.06 791 766 196.9

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