ASTROSAT CZTI

Data Quality Report

Orbit 33204

Creation date: 2024-06-27T20:46:02.962561
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/AS1A10_067T01_9000004770_33204cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33204cztM0_level2_quad_clean.evt
Size (bytes)473,057,28060,667,200
Size451.1 MB 57.9 MB
Events in quadrant A2,428,366394,070
Events in quadrant B3,627,019388,940
Events in quadrant C2,752,883383,567
Events in quadrant D5,193,248333,560

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212
B0201
C0201
D0256

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010417489
B014681919
C011617575
D0208381904

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01035
B01034
C01119
D01086

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A483550.103413%
B47793527.365558%
C4835531.096174%
D46893737.954788%

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 6975 5012 0 0 0.00% 0.00%
B 6975 4988 222 222 3.18% 4.45%
C 6975 5020 39 39 0.56% 0.78%
D 6975 4934 280 280 4.01% 5.67%

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 13 254 7583 56.03 626 615 124.4
A 14 254 6084 43.98 626 615 124.4
A 0 226 5649 40.48 626 615 124.4
B 5 172 906003 8040.7 594 580 112.6
B 15 32 119815 1058.88 594 580 112.6
B 0 197 102867 908.37 594 580 112.6
C 1 23 204531 1469.28 602 608 138.8
C 0 10 125881 902.6 602 608 138.8
C 0 207 36355 257.56 602 608 138.8
D 8 195 1587421 11214.98 577 563 141.5
D 12 218 285713 2015.27 577 563 141.5
D 10 118 265395 1871.68 577 563 141.5

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