ASTROSAT CZTI

Data Quality Report

Orbit 42213

Creation date: 2024-06-27T22:38:33.991729
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_088T51_9000005780_42213cztM0_level2.fits modeM0/AS1A12_088T51_9000005780_42213cztM0_level2_quad_clean.evt
Size (bytes)341,856,00093,692,160
Size326.0 MB 89.4 MB
Events in quadrant A3,353,024646,075
Events in quadrant B2,646,969657,923
Events in quadrant C2,496,143619,159
Events in quadrant D3,755,472551,513

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131352
B0112482
C0105132
D0147192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5173891.720472%
B5173531.024551%
C517330.057993%
D51732635.084090%

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 7237 5174 62 62 0.86% 1.20%
B 7237 5174 41 41 0.57% 0.79%
C 7237 5174 0 0 0.00% 0.00%
D 7237 5174 233 233 3.22% 4.50%

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 591436 4792.69 605 595 123.3
A 15 223 313188 2535.64 605 595 123.3
A 15 222 83607 673.36 605 595 123.3
B 0 229 170619 1472.72 601 585 115.5
B 3 112 76089 653.97 601 585 115.5
B 5 255 17483 146.36 601 585 115.5
C 15 214 219317 1629.42 579 583 134.2
C 7 220 8959 62.4 579 583 134.2
C 12 249 6062 40.81 579 583 134.2
D 1 52 617347 4370.13 571 555 141.1
D 1 47 335896 2375.98 571 555 141.1
D 10 118 246284 1741.05 571 555 141.1

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