ASTROSAT CZTI

Data Quality Report

Orbit 23078

Creation date: 2024-06-27T18:49:28.774719
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/AS1A07_049T01_9000003408_23078cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23078cztM0_level2_quad_clean.evt
Size (bytes)522,648,00098,971,200
Size498.4 MB 94.4 MB
Events in quadrant A3,534,906626,090
Events in quadrant B3,807,797635,063
Events in quadrant C3,726,373612,226
Events in quadrant D4,247,448599,688

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154302
B0160262
C0159262
D0174312

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75301321.752988%
B75311772.350285%
C75311842.443235%
D75301251.660027%

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 7745 7532 0 0 0.00% 0.00%
B 7746 7533 29 29 0.37% 0.38%
C 7746 7533 27 27 0.35% 0.36%
D 7745 7532 37 37 0.48% 0.49%

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 20374 105.24 911 892 185.1
A 13 254 11491 57.26 911 892 185.1
A 3 137 8555 41.4 911 892 185.1
B 3 64 67805 380.09 904 880 176.1
B 14 207 60979 341.33 904 880 176.1
B 4 216 52241 291.7 904 880 176.1
C 0 10 176624 853.86 869 872 205.8
C 14 238 137352 663.06 869 872 205.8
C 8 128 7760 33.46 869 872 205.8
D 1 52 702127 3247.38 887 861 215.9
D 7 238 53833 245.3 887 861 215.9
D 12 227 51067 232.49 887 861 215.9

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