ASTROSAT CZTI

Data Quality Report

Orbit 40603

Creation date: 2024-06-27T22:18:05.649523
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/AS1A12_054T02_9000005550_40603cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40603cztM0_level2_quad_clean.evt
Size (bytes)322,300,80086,739,840
Size307.4 MB 82.7 MB
Events in quadrant A2,818,111593,771
Events in quadrant B3,069,460605,685
Events in quadrant C2,616,719582,801
Events in quadrant D3,013,300473,919

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116373
B0127072
C0111152
D0125882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5293190.358965%
B5293841.587002%
C5293220.415643%
D529366012.469299%

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 8849 5295 10 10 0.11% 0.19%
B 8849 5295 64 64 0.72% 1.21%
C 8849 5295 18 18 0.20% 0.34%
D 8849 5295 77 77 0.87% 1.45%

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 484466 4046.45 580 569 119.6
A 3 1 47317 390.92 580 569 119.6
A 12 189 22306 181.77 580 569 119.6
B 0 190 515240 4637.93 576 559 111.0
B 5 255 211315 1899.18 576 559 111.0
B 3 112 49276 439.0 576 559 111.0
C 15 214 234601 1772.43 565 568 132.0
C 14 254 118087 890.02 565 568 132.0
C 0 10 52133 390.52 565 568 132.0
D 12 227 294372 2228.93 525 508 131.8
D 12 191 193114 1460.89 525 508 131.8
D 2 249 178586 1350.7 525 508 131.8

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