ASTROSAT CZTI

Data Quality Report

Orbit 16683

Creation date: 2024-06-27T17:26:09.913708
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/AS1A05_012T02_9000002468_16683cztM0_level2.evt modeM0/AS1A05_012T02_9000002468_16683cztM0_level2_quad_clean.evt
Size (bytes)567,938,88081,486,720
Size541.6 MB 77.7 MB
Events in quadrant A4,513,561506,681
Events in quadrant B3,076,374534,216
Events in quadrant C2,749,679517,011
Events in quadrant D6,451,237487,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174402
B0128951
C0122511
D0234621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60473976.565239%
B6047550.909542%
C6047380.628411%
D604768611.344468%

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 6888 6049 243 243 3.53% 4.02%
B 6888 6049 3 3 0.04% 0.05%
C 6888 6049 0 0 0.00% 0.00%
D 6888 6049 528 528 7.67% 8.73%

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 15 174 1645911 11712.85 695 681 140.5
A 9 143 149795 1061.58 695 681 140.5
A 12 96 36288 253.5 695 681 140.5
B 15 35 158936 1165.63 703 683 135.8
B 0 229 98471 720.27 703 683 135.8
B 0 189 29884 215.08 703 683 135.8
C 14 238 103932 653.44 674 677 158.0
C 7 247 11637 69.36 674 677 158.0
C 3 233 7860 45.46 674 677 158.0
D 1 52 2562466 15733.14 663 643 162.8
D 2 16 1097144 6734.04 663 643 162.8
D 10 70 230876 1413.95 663 643 162.8

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