ASTROSAT CZTI

Data Quality Report

Orbit 05336

Creation date: 2024-06-27T14:54:01.345703
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/AS1G05_240T01_9000000674_05336cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05336cztM0_level2_quad_clean.evt
Size (bytes)1,161,838,080174,991,680
Size1.1 GB 166.9 MB
Events in quadrant A7,452,0891,054,756
Events in quadrant B8,174,3141,075,315
Events in quadrant C10,519,2641,016,924
Events in quadrant D7,916,6741,007,504

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379073766
B0394183729
C0488396405
D0397724195

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037529
B037636
C037634
D037636

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263
B0271
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A166571931.158672%
B167042711.622366%
C162392171.336289%
D166541951.170890%

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 37884 17894 8 8 0.02% 0.04%
B 37884 17913 46 46 0.12% 0.26%
C 37884 17573 0 0 0.00% 0.00%
D 37884 17842 42 42 0.11% 0.24%

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 0 50 74452 184.64 1907 1864 393.1
A 13 251 40945 99.41 1907 1864 393.1
A 0 226 18822 43.13 1907 1864 393.1
B 10 16 297157 803.87 1931 1890 367.3
B 4 48 119835 321.11 1931 1890 367.3
B 4 80 89329 238.05 1931 1890 367.3
C 1 16 3447389 8259.31 1803 1811 417.2
C 14 67 18029 38.88 1803 1811 417.2
C 13 61 14587 30.63 1803 1811 417.2
D 4 95 246893 543.71 1853 1800 450.8
D 8 195 121611 265.78 1853 1800 450.8
D 2 234 105271 229.54 1853 1800 450.8

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