ASTROSAT CZTI

Data Quality Report

Orbit 25593

Creation date: 2024-06-27T19:19:19.858811
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/AS1A09_043T02_9000003726_25593cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25593cztM0_level2_quad_clean.evt
Size (bytes)613,376,64082,065,600
Size585.0 MB 78.3 MB
Events in quadrant A3,820,390540,800
Events in quadrant B3,595,607548,618
Events in quadrant C3,438,277507,510
Events in quadrant D7,282,956435,436

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151930
B0143840
C0138860
D0264740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64841201.850709%
B64841452.236274%
C64841582.436767%
D6483107016.504705%

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 7650 6485 6 6 0.08% 0.09%
B 7650 6485 0 0 0.00% 0.00%
C 7650 6484 0 0 0.00% 0.00%
D 7649 6484 830 830 10.85% 12.80%

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 6 16 196405 1087.13 902 886 179.8
A 8 192 147478 815.09 902 886 179.8
A 13 254 10801 55.13 902 886 179.8
B 0 219 59203 344.04 894 874 169.5
B 12 111 20059 113.16 894 874 169.5
B 15 33 18673 104.98 894 874 169.5
C 14 238 138025 695.8 843 851 197.1
C 3 233 9966 46.23 843 851 197.1
C 0 207 5996 26.1 843 851 197.1
D 12 2 1839721 9454.65 795 773 194.5
D 1 52 1432821 7362.64 795 773 194.5
D 2 244 534927 2746.27 795 773 194.5

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