ASTROSAT CZTI

Data Quality Report

Orbit 40563

Creation date: 2024-06-27T22:17:37.814432
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_40563cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40563cztM0_level2_quad_clean.evt
Size (bytes)335,485,44081,437,760
Size319.9 MB 77.7 MB
Events in quadrant A2,721,726601,733
Events in quadrant B3,295,369609,445
Events in quadrant C2,735,530568,494
Events in quadrant D3,282,334342,894

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109163
B0129642
C0110972
D0131082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4899140.285773%
B4899591.204327%
C4899470.959379%
D4899209142.682180%

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 7052 4900 6 6 0.09% 0.12%
B 7052 4900 38 38 0.54% 0.78%
C 7052 4900 48 48 0.68% 0.98%
D 7051 4898 107 107 1.52% 2.18%

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 467120 4045.66 567 557 115.3
A 2 79 32761 279.25 567 557 115.3
A 12 189 13618 113.25 567 557 115.3
B 3 112 650643 6016.26 557 542 108.1
B 4 171 260966 2410.05 557 542 108.1
B 5 255 108311 997.33 557 542 108.1
C 14 254 372632 2970.49 541 543 125.3
C 15 214 218342 1738.75 541 543 125.3
C 0 10 26980 211.05 541 543 125.3
D 12 191 354802 3105.53 465 452 114.1
D 12 0 298854 2615.2 465 452 114.1
D 12 79 285704 2499.95 465 452 114.1

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