ASTROSAT CZTI

Data Quality Report

Orbit 33124

Creation date: 2024-06-27T20:45:16.301942
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/AS1A11_096T01_9000004766_33124cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33124cztM0_level2_quad_clean.evt
Size (bytes)550,316,16081,624,960
Size524.8 MB 77.8 MB
Events in quadrant A2,649,972534,852
Events in quadrant B3,611,283538,007
Events in quadrant C3,000,012523,132
Events in quadrant D7,007,196465,531

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118523
B0146292
C0127982
D0249472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A587160.102197%
B58711442.452734%
C5871821.396696%
D5871141124.033384%

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 7215 5872 0 0 0.00% 0.00%
B 7215 5872 93 93 1.29% 1.58%
C 7215 5872 60 60 0.83% 1.02%
D 7215 5871 773 773 10.71% 13.17%

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 6 16269 113.15 681 667 137.9
A 13 254 10464 71.05 681 667 137.9
A 3 137 6520 42.45 681 667 137.9
B 5 172 419397 3231.16 678 659 129.6
B 0 189 175527 1349.35 678 659 129.6
B 0 229 75241 575.5 678 659 129.6
C 0 10 232025 1513.63 660 664 152.9
C 7 221 120187 781.96 660 664 152.9
C 9 69 17344 109.13 660 664 152.9
D 12 218 1712879 12370.78 535 522 138.4
D 8 195 1044903 7545.04 535 522 138.4
D 2 250 640529 4623.68 535 522 138.4

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