ASTROSAT CZTI

Data Quality Report

Orbit 40006

Creation date: 2024-06-27T22:11:11.895145
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_054T03_9000005516_40006cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40006cztM0_level2_quad_clean.evt
Size (bytes)353,632,32091,627,200
Size337.3 MB 87.4 MB
Events in quadrant A3,245,605603,493
Events in quadrant B3,169,918611,831
Events in quadrant C2,722,209612,365
Events in quadrant D3,512,748551,919

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132943
B0134572
C0116902
D0145122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56451713.029229%
B56452364.180691%
C5645200.354296%
D56452133.773251%

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 7227 5646 111 111 1.54% 1.97%
B 7227 5646 126 126 1.74% 2.23%
C 7227 5646 16 16 0.22% 0.28%
D 7227 5646 210 210 2.91% 3.72%

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 463162 3697.72 611 598 125.1
A 13 248 384622 3069.87 611 598 125.1
A 2 79 13299 101.53 611 598 125.1
B 4 171 717033 6095.33 606 590 117.5
B 15 35 26318 218.89 606 590 117.5
B 0 230 19892 164.22 606 590 117.5
C 15 214 233966 1642.57 607 611 142.1
C 0 10 32164 222.1 607 611 142.1
C 14 254 24622 169.01 607 611 142.1
D 12 227 690681 4676.2 598 582 147.6
D 13 249 219380 1482.6 598 582 147.6
D 2 250 119984 809.08 598 582 147.6

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