ASTROSAT CZTI

Data Quality Report

Orbit 22192

Creation date: 2024-06-27T18:37:55.524588
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/AS1A07_065T01_9000003284_22192cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22192cztM0_level2_quad_clean.evt
Size (bytes)477,993,60080,507,520
Size455.9 MB 76.8 MB
Events in quadrant A3,016,023513,989
Events in quadrant B3,078,029522,108
Events in quadrant C3,026,211497,488
Events in quadrant D4,930,057466,761

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128111
B0129531
C0128141
D0187721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62701071.706539%
B62701101.754386%
C62711241.977356%
D62715198.276192%

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 7085 6271 0 0 0.00% 0.00%
B 7085 6271 1 1 0.01% 0.02%
C 7086 6272 0 0 0.00% 0.00%
D 7086 6272 432 432 6.10% 6.89%

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 13 254 11754 69.65 780 764 157.8
A 4 2 7476 42.54 780 764 157.8
A 0 226 6757 37.98 780 764 157.8
B 0 190 27915 185.2 769 750 146.7
B 3 64 26999 178.96 769 750 146.7
B 12 111 18035 117.84 769 750 146.7
C 14 238 117644 670.46 744 748 174.4
C 10 91 6603 33.58 744 748 174.4
C 13 61 5246 25.8 744 748 174.4
D 12 235 1146215 6389.85 736 714 179.3
D 1 52 639597 3563.82 736 714 179.3
D 7 223 219176 1218.63 736 714 179.3

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