ASTROSAT CZTI

Data Quality Report

Orbit 03798

Creation date: 2024-06-27T14:33:54.562865
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/AS1SLEW_01234_9000000489_03798cztM0_level2.evt modeM0/AS1SLEW_01234_9000000489_03798cztM0_level2_quad_clean.evt
Size (bytes)75,251,52015,958,080
Size71.8 MB 15.2 MB
Events in quadrant A748,66899,730
Events in quadrant B528,197100,789
Events in quadrant C397,892102,386
Events in quadrant D529,86999,604

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029200
B023112
C020990
D024220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1049191.811249%
B104840.381679%
C104900.000000%
D104940.381316%

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 1049 1049 16 16 1.53% 1.53%
B 1049 1049 6 6 0.57% 0.57%
C 1049 1049 0 0 0.00% 0.00%
D 1049 1049 5 5 0.48% 0.48%

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 266004 11375.15 101 98 23.4
A 0 118 52198 2228.78 101 98 23.4
A 0 50 31703 1352.03 101 98 23.4
B 14 167 89992 3930.07 105 102 22.9
B 15 204 30826 1343.28 105 102 22.9
B 12 111 1450 58.94 105 102 22.9
C 10 65 809 27.69 101 101 25.5
C 13 61 800 27.34 101 101 25.5
C 7 247 552 17.63 101 101 25.5
D 2 63 88774 3373.85 99 96 26.3
D 13 239 36369 1380.05 99 96 26.3
D 8 112 10443 393.66 99 96 26.3

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
Veto Counter