ASTROSAT CZTI

Data Quality Report

Orbit 48543

Creation date: 2024-09-19T21:34:55.489869
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_037T01_9000006436_48543cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48543cztM0_level2_quad_clean.evt
Size (bytes)457,963,200107,199,360
Size436.7 MB 102.2 MB
Events in quadrant A7,118,913687,594
Events in quadrant B3,110,826732,456
Events in quadrant C2,845,797706,263
Events in quadrant D3,340,572638,455

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256648
B0145402
C0140232
D0153562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69062814.068926%
B6907570.825250%
C6907180.260605%
D6907961.389894%

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 7752 6908 73 73 0.94% 1.06%
B 7752 6908 9 9 0.12% 0.13%
C 7752 6908 0 0 0.00% 0.00%
D 7752 6908 57 57 0.74% 0.83%

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 4203308 27935.28 720 704 150.4
A 12 189 67477 443.85 720 704 150.4
A 13 248 54050 354.6 720 704 150.4
B 5 171 71692 494.78 728 703 143.5
B 5 255 55685 383.22 728 703 143.5
B 0 155 32710 223.08 728 703 143.5
C 12 250 8627 45.94 726 729 171.9
C 13 61 4865 24.06 726 729 171.9
C 12 249 3406 15.57 726 729 171.9
D 2 165 290689 1616.83 718 696 179.4
D 12 233 164592 913.79 718 696 179.4
D 2 249 81691 451.58 718 696 179.4

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