ASTROSAT CZTI

Data Quality Report

Orbit 46263

Creation date: 2024-06-27T23:20:59.538483
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/AS1A13_071T10_9000006192_46263cztM0_level2.fits modeM0/AS1A13_071T10_9000006192_46263cztM0_level2_quad_clean.evt
Size (bytes)628,295,040133,591,680
Size599.2 MB 127.4 MB
Events in quadrant A7,073,065878,520
Events in quadrant B5,175,257912,891
Events in quadrant C3,918,115900,192
Events in quadrant D6,444,207772,863

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268580
B0210330
C0181060
D0252760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83501651.976048%
B83501902.275449%
C8350750.898204%
D83506708.023952%

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 8350 8350 2 2 0.02% 0.02%
B 8350 8350 46 46 0.55% 0.55%
C 8350 8350 25 25 0.30% 0.30%
D 8350 8350 594 594 7.11% 7.11%

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 3429099 17775.75 927 908 192.9
A 3 7 41816 212.11 927 908 192.9
A 13 254 13921 67.47 927 908 192.9
B 3 112 1358394 7356.58 932 900 184.5
B 5 32 32335 170.35 932 900 184.5
B 12 111 24269 126.64 932 900 184.5
C 12 2 227276 1034.17 930 931 218.9
C 2 14 39298 175.3 930 931 218.9
C 14 254 16047 69.06 930 931 218.9
D 8 129 1360002 6098.56 891 864 222.9
D 1 52 501619 2246.93 891 864 222.9
D 2 249 419286 1877.49 891 864 222.9

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