ASTROSAT CZTI

Data Quality Report

Orbit 43005

Creation date: 2024-06-27T22:46:48.616993
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_148T01_9000005838_43005cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43005cztM0_level2_quad_clean.evt
Size (bytes)362,687,040115,064,640
Size345.9 MB 109.7 MB
Events in quadrant A3,497,273806,302
Events in quadrant B2,989,720810,573
Events in quadrant C2,986,259778,786
Events in quadrant D3,507,841689,269

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137782
B0122902
C0118882
D0141222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5709370.648099%
B5710621.085814%
C5710110.192644%
D57101712.994746%

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 8754 5711 16 16 0.18% 0.28%
B 8755 5712 33 33 0.38% 0.58%
C 8755 5712 11 11 0.13% 0.19%
D 8755 5712 118 118 1.35% 2.07%

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 608977 3970.89 698 688 153.2
A 15 237 98524 638.67 698 688 153.2
A 13 248 86082 557.45 698 688 153.2
B 4 171 255143 1754.59 692 676 145.0
B 12 111 15615 103.01 692 676 145.0
B 11 111 14507 95.37 692 676 145.0
C 15 214 234543 1370.25 678 684 170.7
C 0 239 67513 391.57 678 684 170.7
C 5 250 16402 92.1 678 684 170.7
D 1 47 497675 2848.42 667 645 174.5
D 13 249 214815 1227.38 667 645 174.5
D 1 52 106528 606.8 667 645 174.5

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