ASTROSAT CZTI

Data Quality Report

Orbit 43352

Creation date: 2024-06-27T22:50:54.142503
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/AS1T05_158T01_9000005868_43352cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43352cztM0_level2_quad_clean.evt
Size (bytes)1,025,740,800286,326,720
Size978.2 MB 273.1 MB
Events in quadrant A9,862,0701,908,511
Events in quadrant B8,341,9601,945,380
Events in quadrant C8,599,8661,866,920
Events in quadrant D9,775,4941,711,759

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0401564
B0370354
C0368574
D0419014

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0470
C0470
D0470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03640
B03640
C03640
D03640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179441720.958538%
B17944670.373384%
C17944140.078021%
D179442961.649576%

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 21941 17947 121 121 0.55% 0.67%
B 21941 17947 27 27 0.12% 0.15%
C 21941 17947 3 3 0.01% 0.02%
D 21941 17947 262 262 1.19% 1.46%

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 1625740 4063.0 1952 1911 399.7
A 15 237 561402 1399.91 1952 1911 399.7
A 13 248 98865 242.59 1952 1911 399.7
B 0 189 223380 583.92 1944 1886 379.3
B 5 172 208107 543.66 1944 1886 379.3
B 0 245 93023 240.26 1944 1886 379.3
C 15 214 734457 1638.4 1920 1935 447.1
C 15 208 266565 591.89 1920 1935 447.1
C 14 254 42470 90.66 1920 1935 447.1
D 1 52 963414 2077.37 1896 1843 462.9
D 2 249 825251 1778.88 1896 1843 462.9
D 12 6 226671 485.72 1896 1843 462.9

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