ASTROSAT CZTI

Data Quality Report

Orbit 04069

Creation date: 2024-06-27T14:37:00.348844
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/AS1G05_222T01_9000000520_04069cztM0_level2.evt modeM0/AS1G05_222T01_9000000520_04069cztM0_level2_quad_clean.evt
Size (bytes)458,519,04082,725,120
Size437.3 MB 78.9 MB
Events in quadrant A3,482,127515,463
Events in quadrant B3,353,885526,394
Events in quadrant C2,971,778517,372
Events in quadrant D3,638,900494,579

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147327
B0143506
C0133142
D0155692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64651902.938902%
B6465861.330240%
C6467360.556672%
D64671352.087521%

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 7482 6468 108 108 1.44% 1.67%
B 7482 6468 27 27 0.36% 0.42%
C 7482 6468 3 3 0.04% 0.05%
D 7482 6467 89 89 1.19% 1.38%

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 0 50 395937 2558.9 754 737 154.4
A 8 15 165518 1066.95 754 737 154.4
A 0 226 8355 49.32 754 737 154.4
B 14 167 119428 793.25 776 758 149.6
B 10 16 71439 472.47 776 758 149.6
B 15 204 61285 404.59 776 758 149.6
C 9 144 22245 121.89 752 755 176.3
C 13 61 6251 31.17 752 755 176.3
C 12 4 5968 29.57 752 755 176.3
D 2 232 430436 2380.33 738 716 180.5
D 10 172 371921 2056.2 738 716 180.5
D 2 14 18942 100.96 738 716 180.5

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