ASTROSAT CZTI

Data Quality Report

Orbit 47705

Creation date: 2024-07-24T12:45:20.943154
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_47705cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47705cztM0_level2_quad_clean.evt
Size (bytes)486,063,360108,720,000
Size463.5 MB 103.7 MB
Events in quadrant A7,418,396678,915
Events in quadrant B3,058,216757,632
Events in quadrant C3,054,474730,242
Events in quadrant D3,951,790667,424

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267821
B0135951
C0137801
D0159642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65686189.409257%
B6568661.004872%
C6568901.370280%
D65671131.720725%

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 7648 6568 375 375 4.90% 5.71%
B 7648 6568 2 2 0.03% 0.03%
C 7648 6568 14 14 0.18% 0.21%
D 7647 6567 49 49 0.64% 0.75%

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 3773413 25276.8 718 702 149.3
A 14 248 733510 4909.74 718 702 149.3
A 9 191 120574 803.13 718 702 149.3
B 4 21 72781 500.08 741 716 144.1
B 0 200 45108 308.05 741 716 144.1
B 12 111 18261 121.75 741 716 144.1
C 12 2 131774 747.5 741 744 175.3
C 12 250 22237 122.61 741 744 175.3
C 10 20 10719 56.91 741 744 175.3
D 2 165 835779 4538.23 738 716 184.0
D 2 249 143477 775.85 738 716 184.0
D 12 16 57778 310.11 738 716 184.0

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