ASTROSAT CZTI

Data Quality Report

Orbit 28019

Creation date: 2024-06-27T19:47:08.534746
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/AS1A10_045T01_9000004046_28019cztM0_level2.evt modeM0/AS1A10_045T01_9000004046_28019cztM0_level2_quad_clean.evt
Size (bytes)548,147,52069,436,800
Size522.8 MB 66.2 MB
Events in quadrant A3,202,796432,633
Events in quadrant B3,272,600428,616
Events in quadrant C3,797,244400,673
Events in quadrant D5,892,437391,999

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133400
B0136510
C0154070
D0219530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6420370.576324%
B6421580.903286%
C64201312.040498%
D642074011.526480%

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 7485 6420 0 0 0.00% 0.00%
B 7486 6421 1 1 0.01% 0.02%
C 7485 6420 13 13 0.17% 0.20%
D 7485 6420 703 703 9.39% 10.95%

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 13 17732 102.11 825 810 165.7
A 13 254 10396 57.85 825 810 165.7
A 3 137 7794 42.14 825 810 165.7
B 10 245 55261 348.38 816 797 156.3
B 12 111 19460 119.38 816 797 156.3
B 11 111 17667 107.91 816 797 156.3
C 3 233 609458 3316.72 783 790 183.5
C 14 238 127425 690.05 783 790 183.5
C 2 16 11746 59.7 783 790 183.5
D 1 52 2403701 13176.62 751 732 182.4
D 8 195 467170 2557.7 751 732 182.4
D 7 80 158615 865.75 751 732 182.4

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