ASTROSAT CZTI

Data Quality Report

Orbit 22206

Creation date: 2024-06-27T18:38:02.024182
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/AS1A07_065T01_9000003284_22206cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22206cztM0_level2_quad_clean.evt
Size (bytes)437,636,16092,589,120
Size417.4 MB 88.3 MB
Events in quadrant A3,158,112598,160
Events in quadrant B3,303,940605,259
Events in quadrant C3,181,953578,059
Events in quadrant D3,169,227570,481

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132581
B0136911
C0133381
D0135141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479911.404538%
B64801001.543210%
C6480821.265432%
D6480701.080247%

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 7464 6480 0 0 0.00% 0.00%
B 7465 6481 8 8 0.11% 0.12%
C 7465 6481 2 2 0.03% 0.03%
D 7465 6481 11 11 0.15% 0.17%

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 13 254 10616 59.89 818 802 163.9
A 0 226 7123 38.58 818 802 163.9
A 3 137 6888 37.14 818 802 163.9
B 4 173 115436 747.05 806 785 153.5
B 0 190 27321 172.9 806 785 153.5
B 12 111 18502 115.44 806 785 153.5
C 14 238 123293 677.79 776 781 180.8
C 10 22 24659 132.1 776 781 180.8
C 15 127 7355 36.37 776 781 180.8
D 1 52 90203 462.31 795 771 193.4
D 2 234 29862 150.38 795 771 193.4
D 15 145 28142 141.49 795 771 193.4

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