ASTROSAT CZTI

Data Quality Report

Orbit 47704

Creation date: 2024-07-24T10:45:45.562721
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_213T01_9000006344_47704cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47704cztM0_level2_quad_clean.evt
Size (bytes)456,719,040108,126,720
Size435.6 MB 103.1 MB
Events in quadrant A6,800,569705,578
Events in quadrant B3,151,597738,084
Events in quadrant C2,999,913712,933
Events in quadrant D3,437,851654,260

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249091
B0140441
C0138141
D0145731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66522213.322309%
B6652701.052315%
C6652510.766687%
D6652400.601323%

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 7667 6652 31 31 0.40% 0.47%
B 7667 6652 24 24 0.31% 0.36%
C 7667 6652 14 14 0.18% 0.21%
D 7667 6652 5 5 0.07% 0.08%

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 3920242 25917.09 727 711 151.2
A 9 191 56987 372.11 727 711 151.2
A 14 235 14994 94.44 727 711 151.2
B 4 21 138924 972.4 732 708 142.1
B 0 200 94013 656.43 732 708 142.1
B 12 111 18420 124.61 732 708 142.1
C 12 2 145942 843.07 730 732 172.2
C 14 254 6276 32.19 730 732 172.2
C 13 61 4985 24.69 730 732 172.2
D 2 165 416942 2279.74 728 706 182.6
D 5 171 61421 332.54 728 706 182.6
D 12 16 55742 301.43 728 706 182.6

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