ASTROSAT CZTI

Data Quality Report

Orbit 32324

Creation date: 2024-06-27T20:38:52.875975
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/AS1A10_005T01_9000004700_32324cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32324cztM0_level2_quad_clean.evt
Size (bytes)761,636,16084,435,840
Size726.4 MB 80.5 MB
Events in quadrant A3,197,838579,277
Events in quadrant B6,196,767548,350
Events in quadrant C5,452,084513,387
Events in quadrant D7,792,997473,287

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133503
B0227852
C0203372
D0274952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6333220.347387%
B63335198.195168%
C633384613.358598%
D6333116718.427286%

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 7598 6334 0 0 0.00% 0.00%
B 7598 6334 272 272 3.58% 4.29%
C 7598 6334 530 530 6.98% 8.37%
D 7598 6334 1032 1032 13.58% 16.29%

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 27179 163.14 813 796 161.7
A 12 189 16877 99.44 813 796 161.7
A 13 254 12344 71.41 813 796 161.7
B 6 159 1861757 12684.98 786 767 146.7
B 5 172 646776 4403.36 786 767 146.7
B 10 245 367122 2497.17 786 767 146.7
C 0 10 2086246 11947.48 743 750 174.6
C 3 233 228047 1302.15 743 750 174.6
C 14 238 121188 689.97 743 750 174.6
D 13 174 2233397 12884.03 722 703 173.3
D 8 195 1494377 8619.43 722 703 173.3
D 13 249 1055227 6085.26 722 703 173.3

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