ASTROSAT CZTI

Data Quality Report

Orbit 11312

Creation date: 2024-06-27T16:11:08.993609
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/AS1A04_137T01_9000001654_11312cztM0_level2.evt modeM0/AS1A04_137T01_9000001654_11312cztM0_level2_quad_clean.evt
Size (bytes)632,496,96078,995,520
Size603.2 MB 75.3 MB
Events in quadrant A4,242,374471,165
Events in quadrant B5,017,344468,576
Events in quadrant C3,565,085496,831
Events in quadrant D5,843,756455,174

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169683
B0194282
C0153942
D0220802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71802373.300836%
B71805417.534819%
C71801452.019499%
D718089812.506964%

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 7915 7181 69 69 0.87% 0.96%
B 7915 7181 291 291 3.68% 4.05%
C 7915 7181 43 43 0.54% 0.60%
D 7915 7180 684 684 8.64% 9.53%

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 5 560182 3206.5 851 833 174.4
A 1 162 108931 619.68 851 833 174.4
A 1 178 68426 387.48 851 833 174.4
B 4 239 808865 4952.28 841 819 163.2
B 3 64 710494 4349.39 841 819 163.2
B 0 197 115717 704.18 841 819 163.2
C 9 204 295762 1517.51 837 842 194.3
C 13 61 6196 27.55 837 842 194.3
C 14 234 4205 17.3 837 842 194.3
D 10 253 1672504 9009.91 769 749 185.5
D 1 52 822899 4430.97 769 749 185.5
D 13 104 127414 682.66 769 749 185.5

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