ASTROSAT CZTI

Data Quality Report

Orbit 09739

Creation date: 2024-06-27T15:50:04.405424
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/AS1A03_119T01_9000001388_09739cztM0_level2.evt modeM0/AS1A03_119T01_9000001388_09739cztM0_level2_quad_clean.evt
Size (bytes)404,858,88088,130,880
Size386.1 MB 84.0 MB
Events in quadrant A2,928,037562,888
Events in quadrant B2,983,926582,798
Events in quadrant C2,895,108554,765
Events in quadrant D3,028,691532,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012900135
B01295073
C01296897
D01341693

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01282
D01282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6234330.529355%
B6262530.846375%
C6250400.640000%
D6258450.719080%

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 7503 6294 0 0 0.00% 0.00%
B 7503 6294 0 0 0.00% 0.00%
C 7503 6295 5 5 0.07% 0.08%
D 7503 6298 7 7 0.09% 0.11%

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 0 226 6946 40.52 760 745 153.0
A 12 194 6005 34.37 760 745 153.0
A 13 253 3741 19.58 760 745 153.0
B 12 111 17039 111.44 766 747 146.2
B 11 111 13659 88.32 766 747 146.2
B 14 111 11266 71.95 766 747 146.2
C 9 237 19091 108.02 733 737 169.9
C 14 234 13358 74.28 733 737 169.9
C 13 61 5707 29.25 733 737 169.9
D 1 52 247611 1320.67 722 708 187.0
D 2 234 19747 101.84 722 708 187.0
D 8 195 8694 42.72 722 708 187.0

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