ASTROSAT CZTI

Data Quality Report

Orbit 47117

Creation date: 2024-06-27T23:31:56.323732
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/AS1C09_003T01_9000006298_47117cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47117cztM0_level2_quad_clean.evt
Size (bytes)545,215,680119,897,280
Size520.0 MB 114.3 MB
Events in quadrant A7,450,684810,478
Events in quadrant B4,069,404814,683
Events in quadrant C3,519,341768,151
Events in quadrant D4,555,935710,097

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278581
B0170270
C0161040
D0188100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75701251.651255%
B75701191.571995%
C7571630.832123%
D75711682.218994%

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 7570 7570 1 1 0.01% 0.01%
B 7570 7570 60 60 0.79% 0.79%
C 7571 7571 51 51 0.67% 0.67%
D 7571 7571 130 130 1.72% 1.72%

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 4033751 23041.42 840 822 175.0
A 0 247 90402 511.8 840 822 175.0
A 13 248 18318 99.96 840 822 175.0
B 5 173 234992 1432.66 831 804 163.5
B 4 21 221702 1351.36 831 804 163.5
B 0 190 124540 756.96 831 804 163.5
C 14 254 205686 1084.49 808 809 188.9
C 12 2 134150 705.82 808 809 188.9
C 11 16 10334 50.42 808 809 188.9
D 2 249 470087 2305.78 814 785 203.5
D 12 233 454891 2231.12 814 785 203.5
D 1 47 180578 883.36 814 785 203.5

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