ASTROSAT CZTI

Data Quality Report

Orbit 45667

Creation date: 2024-06-27T23:14:47.975265
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_093T12_9000006118_45667cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45667cztM0_level2_quad_clean.evt
Size (bytes)570,208,320126,578,880
Size543.8 MB 120.7 MB
Events in quadrant A6,674,881840,235
Events in quadrant B5,035,419854,006
Events in quadrant C4,119,992831,119
Events in quadrant D4,669,696762,702

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254341
B0204231
C0177601
D0192971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78331782.272437%
B78333324.238478%
C78331281.634112%
D78321101.404494%

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 7833 7833 0 0 0.00% 0.00%
B 7833 7833 215 215 2.74% 2.74%
C 7833 7833 105 105 1.34% 1.34%
D 7832 7832 73 73 0.93% 0.93%

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 3241308 17739.34 876 856 182.7
A 0 247 14828 76.49 876 856 182.7
A 0 243 10468 52.62 876 856 182.7
B 12 16 1073825 6324.08 868 839 169.7
B 3 112 132036 773.26 868 839 169.7
B 5 172 77720 453.13 868 839 169.7
C 14 254 509918 2517.82 864 869 202.2
C 9 54 186944 920.35 864 869 202.2
C 2 14 19468 91.99 864 869 202.2
D 1 52 620472 2827.11 865 837 219.2
D 13 249 220227 1000.98 865 837 219.2
D 2 249 113831 515.54 865 837 219.2

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