ASTROSAT CZTI

Data Quality Report

Orbit 46329

Creation date: 2024-06-27T23:21:48.019100
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_200T01_9000006196_46329cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46329cztM0_level2_quad_clean.evt
Size (bytes)674,974,08099,541,440
Size643.7 MB 94.9 MB
Events in quadrant A13,481,486314,656
Events in quadrant B3,998,869794,424
Events in quadrant C3,064,850765,381
Events in quadrant D3,940,668691,127

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0444772
B0157702
C0134702
D0159992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6430438868.242613%
B64302553.965785%
C6430671.041991%
D64301852.877138%

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 7600 6431 3384 3384 44.53% 52.62%
B 7600 6431 85 85 1.12% 1.32%
C 7600 6431 3 3 0.04% 0.05%
D 7600 6431 97 97 1.28% 1.51%

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 15 223 8901304 76427.54 567 557 116.5
A 10 83 2365894 20310.3 567 557 116.5
A 2 79 20174 168.44 567 557 116.5
B 5 172 304483 2031.88 771 748 149.5
B 3 112 276651 1845.69 771 748 149.5
B 5 63 162182 1079.94 771 748 149.5
C 12 2 55807 308.32 764 771 178.5
C 12 249 18073 96.93 764 771 178.5
C 1 3 11263 58.78 764 771 178.5
D 1 52 705749 3735.55 760 737 188.7
D 13 249 158206 834.36 760 737 188.7
D 12 128 73899 387.65 760 737 188.7

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