ASTROSAT CZTI

Data Quality Report

Orbit 46466

Creation date: 2024-06-27T23:23:29.677637
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/AS1T05_203T01_9000006214_46466cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46466cztM0_level2_quad_clean.evt
Size (bytes)642,473,280122,641,920
Size612.7 MB 117.0 MB
Events in quadrant A7,215,502833,113
Events in quadrant B3,956,270854,271
Events in quadrant C3,454,254811,838
Events in quadrant D8,555,500674,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266513
B0170740
C0161050
D0308740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77601702.190722%
B77611401.803891%
C7761200.257699%
D7761107013.786883%

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 7760 7760 9 9 0.12% 0.12%
B 7761 7761 43 43 0.55% 0.55%
C 7761 7761 15 15 0.19% 0.19%
D 7761 7761 990 990 12.76% 12.76%

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 3566524 19186.75 885 866 185.8
A 0 247 130743 698.87 885 866 185.8
A 15 235 20763 107.07 885 866 185.8
B 5 172 221729 1251.97 877 849 176.4
B 0 189 47990 267.2 877 849 176.4
B 4 158 46986 261.51 877 849 176.4
C 12 2 83164 405.59 859 863 202.9
C 3 233 12779 58.72 859 863 202.9
C 14 67 6220 26.4 859 863 202.9
D 1 52 3762044 17823.38 830 802 211.0
D 12 233 420260 1987.68 830 802 211.0
D 4 223 408042 1929.79 830 802 211.0

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