ASTROSAT CZTI

Data Quality Report

Orbit 45203

Creation date: 2024-06-27T23:10:34.045916
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_049T06_9000006054_45203cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45203cztM0_level2_quad_clean.evt
Size (bytes)589,659,840124,666,560
Size562.3 MB 118.9 MB
Events in quadrant A6,197,368832,469
Events in quadrant B5,102,618846,964
Events in quadrant C3,765,051831,924
Events in quadrant D6,152,394716,444

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241110
B0203300
C0169400
D0236320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78681121.423488%
B78682493.164718%
C7869861.092896%
D78695887.472360%

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 7868 7868 8 8 0.10% 0.10%
B 7868 7868 132 132 1.68% 1.68%
C 7868 7868 77 77 0.98% 0.98%
D 7869 7869 571 571 7.26% 7.26%

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 2667060 14276.46 893 871 186.8
A 0 243 24450 126.26 893 871 186.8
A 13 248 17965 91.53 893 871 186.8
B 3 112 844109 4793.56 883 853 175.9
B 5 255 242529 1373.83 883 853 175.9
B 4 170 114787 647.67 883 853 175.9
C 15 208 176540 844.77 879 883 207.9
C 3 233 60905 288.66 879 883 207.9
C 0 207 52055 246.1 879 883 207.9
D 1 52 1318057 6012.27 862 836 219.1
D 13 249 827781 3774.47 862 836 219.1
D 2 249 91859 415.46 862 836 219.1

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