ASTROSAT CZTI

Data Quality Report

Orbit 06178

Creation date: 2024-06-27T15:03:47.925969
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/AS1G06_139T05_9000000804_06178cztM0_level2.evt modeM0/AS1G06_139T05_9000000804_06178cztM0_level2_quad_clean.evt
Size (bytes)421,090,56088,948,800
Size401.6 MB 84.8 MB
Events in quadrant A3,147,199573,254
Events in quadrant B3,294,711584,228
Events in quadrant C2,870,292569,912
Events in quadrant D3,034,457549,025

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01202

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01312616
B01373213
C0126318
D01305326

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5980921.538462%
B59811692.825614%
C5983651.086411%
D5979821.371467%

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 7166 5985 7 7 0.10% 0.12%
B 7166 5985 65 65 0.91% 1.09%
C 7166 5986 0 0 0.00% 0.00%
D 7166 5986 8 8 0.11% 0.13%

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 8 15 245170 1613.38 736 721 151.5
A 15 234 61577 401.65 736 721 151.5
A 0 226 7063 41.86 736 721 151.5
B 3 64 377391 2690.23 735 717 140.0
B 4 80 38649 270.91 735 717 140.0
B 0 219 14219 96.43 735 717 140.0
C 9 16 62063 376.53 705 709 162.9
C 12 16 44708 270.02 705 709 162.9
C 1 16 14659 85.61 705 709 162.9
D 2 136 171386 978.65 709 687 174.4
D 12 110 56890 322.22 709 687 174.4
D 8 195 40688 229.33 709 687 174.4

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