ASTROSAT CZTI

Data Quality Report

Orbit 12249

Creation date: 2024-06-27T16:24:27.464930
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/AS1C03_005T01_9000001810_12249cztM0_level2.evt modeM0/AS1C03_005T01_9000001810_12249cztM0_level2_quad_clean.evt
Size (bytes)540,622,080129,579,840
Size515.6 MB 123.6 MB
Events in quadrant A4,467,376867,306
Events in quadrant B3,979,971877,707
Events in quadrant C3,307,899862,949
Events in quadrant D4,134,865821,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180412
B0164571
C0149561
D0173831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71231331.867191%
B71231482.077776%
C7123410.575600%
D71232673.748421%

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 7434 7126 11 11 0.15% 0.15%
B 7434 7126 53 53 0.71% 0.74%
C 7434 7126 21 21 0.28% 0.29%
D 7434 7126 206 206 2.77% 2.89%

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 13 251 523471 3171.25 816 800 164.8
A 1 162 204542 1236.18 816 800 164.8
A 1 178 118348 713.21 816 800 164.8
B 4 239 419844 2735.09 819 798 153.2
B 0 205 70178 452.84 819 798 153.2
B 0 85 68153 439.62 819 798 153.2
C 15 208 117436 644.13 785 787 181.1
C 1 16 81988 448.39 785 787 181.1
C 4 175 35120 189.58 785 787 181.1
D 1 52 539098 2849.47 777 754 188.9
D 13 104 266896 1408.7 777 754 188.9
D 10 199 90279 473.86 777 754 188.9

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