ASTROSAT CZTI

Data Quality Report

Orbit 43605

Creation date: 2024-06-27T22:53:35.933952
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/AS1C07_001T10_9000005890_43605cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43605cztM0_level2_quad_clean.evt
Size (bytes)1,135,552,32063,397,440
Size1.1 GB 60.5 MB
Events in quadrant A4,492,759678,017
Events in quadrant B9,191,565591,267
Events in quadrant C14,998,207171,716
Events in quadrant D12,906,46967,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175711
B0313331
C0484871
D0422797

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57802424.186851%
B5781232040.131465%
C5781567198.097215%
D5780575399.532872%

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 6945 5780 83 83 1.20% 1.44%
B 6946 5781 1948 1948 28.04% 33.70%
C 6946 5781 5563 5563 80.09% 96.23%
D 6944 5779 4321 4321 62.23% 74.77%

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 772165 5797.01 646 634 133.1
A 2 79 665619 4996.46 646 634 133.1
A 15 223 223854 1677.2 646 634 133.1
B 4 206 4531624 43310.59 554 539 104.6
B 5 235 1695229 16198.77 554 539 104.6
B 0 183 220008 2097.8 554 539 104.6
C 15 142 8212874 194163.65 177 178 42.3
C 15 174 4006716 94722.13 177 178 42.3
C 15 126 1459709 34506.07 177 178 42.3
D 8 192 6549489 240641.36 87 83 27.2
D 4 212 2656977 97620.85 87 83 27.2
D 4 216 1257411 46197.34 87 83 27.2

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