ASTROSAT CZTI

Data Quality Report

Orbit 47595

Creation date: 2024-07-17T03:22:33.422282
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_037T05_9000006338_47595cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47595cztM0_level2_quad_clean.evt
Size (bytes)712,088,640121,351,680
Size679.1 MB 115.7 MB
Events in quadrant A8,663,907830,691
Events in quadrant B4,045,204888,971
Events in quadrant C3,560,103846,269
Events in quadrant D9,482,786563,139

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0312901
B0175131
C0164271
D0337221

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78425316.771232%
B78421021.300689%
C7842240.306044%
D7842224228.589645%

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 7842 7842 100 100 1.28% 1.28%
B 7842 7842 18 18 0.23% 0.23%
C 7842 7842 0 0 0.00% 0.00%
D 7842 7842 1749 1749 22.30% 22.30%

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 4483450 24135.07 891 873 185.7
A 9 191 429886 2309.89 891 873 185.7
A 15 235 115275 615.96 891 873 185.7
B 0 200 167376 931.35 902 875 178.8
B 5 29 82181 454.8 902 875 178.8
B 0 190 64006 353.13 902 875 178.8
C 3 233 119198 574.01 877 881 206.1
C 14 254 15879 72.76 877 881 206.1
C 13 61 5919 24.44 877 881 206.1
D 12 2 4587694 24957.51 729 707 183.8
D 2 249 1060294 5765.15 729 707 183.8
D 2 165 358181 1944.99 729 707 183.8

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