ASTROSAT CZTI

Data Quality Report

Orbit 47419

Creation date: 2024-07-05T06:01:00.366163
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_053T01_9000006326_47419cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47419cztM0_level2_quad_clean.evt
Size (bytes)481,749,120109,068,480
Size459.4 MB 104.0 MB
Events in quadrant A6,971,632707,825
Events in quadrant B3,173,745757,747
Events in quadrant C3,650,347708,973
Events in quadrant D3,516,568660,981

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249752
B0141562
C0157302
D0153782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67073885.785001%
B6707871.297152%
C67072233.324884%
D6707991.476070%

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 8912 6709 154 154 1.73% 2.30%
B 8912 6707 15 15 0.17% 0.22%
C 8912 6707 186 186 2.09% 2.77%
D 8912 6708 84 84 0.94% 1.25%

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 3676900 24581.98 728 711 149.5
A 9 191 473217 3159.55 728 711 149.5
A 3 137 8392 51.36 728 711 149.5
B 5 32 108948 744.35 742 719 145.4
B 14 167 35970 242.44 742 719 145.4
B 8 234 20245 134.29 742 719 145.4
C 12 2 682725 4022.98 723 725 169.5
C 1 3 113265 663.85 723 725 169.5
C 12 250 18570 105.26 723 725 169.5
D 2 249 288004 1579.02 727 703 181.9
D 4 223 175415 960.22 727 703 181.9
D 2 165 85626 466.74 727 703 181.9

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