ASTROSAT CZTI

Data Quality Report

Orbit 46217

Creation date: 2024-06-27T23:20:30.421447
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/AS1A13_093T12_9000006184_46217cztM0_level2.fits modeM0/AS1A13_093T12_9000006184_46217cztM0_level2_quad_clean.evt
Size (bytes)549,305,280129,562,560
Size523.9 MB 123.6 MB
Events in quadrant A6,970,717837,594
Events in quadrant B4,494,984887,143
Events in quadrant C3,803,514864,686
Events in quadrant D4,450,516783,420

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261062
B0188302
C0169532
D0189612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79162803.537140%
B79171261.591512%
C7916700.884285%
D79161071.351693%

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 9166 7918 23 23 0.25% 0.29%
B 9167 7920 18 18 0.20% 0.23%
C 9166 7919 19 19 0.21% 0.24%
D 9166 7919 70 70 0.76% 0.88%

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 3401645 18627.26 880 861 182.6
A 15 14 72660 393.27 880 861 182.6
A 9 191 27902 148.11 880 861 182.6
B 3 112 803185 4640.9 890 860 172.9
B 5 255 74916 428.36 890 860 172.9
B 5 171 27293 152.9 890 860 172.9
C 12 2 120584 572.87 889 893 208.9
C 5 49 81425 385.45 889 893 208.9
C 14 254 57335 270.15 889 893 208.9
D 1 52 440201 1986.76 879 849 221.1
D 2 249 243169 1095.78 879 849 221.1
D 5 235 122193 548.72 879 849 221.1

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