ASTROSAT CZTI

Data Quality Report

Orbit 03223

Creation date: 2024-06-27T14:26:24.643267
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/AS1G05_233T10_9000000438_03223cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03223cztM0_level2_quad_clean.evt
Size (bytes)517,242,24085,199,040
Size493.3 MB 81.3 MB
Events in quadrant A4,163,090540,123
Events in quadrant B3,549,622542,229
Events in quadrant C4,331,353525,583
Events in quadrant D3,176,907515,721

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170121
B0149461
C0176041
D0142691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65432103.209537%
B6543781.192114%
C65431962.995568%
D6543610.932294%

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 7543 6544 146 146 1.94% 2.23%
B 7543 6543 49 49 0.65% 0.75%
C 7543 6544 181 181 2.40% 2.77%
D 7543 6544 51 51 0.68% 0.78%

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 0 199 771212 5031.97 737 724 153.1
A 0 118 385183 2510.85 737 724 153.1
A 0 226 117155 760.39 737 724 153.1
B 15 204 372926 2523.07 757 741 147.5
B 2 249 191884 1295.77 757 741 147.5
B 15 186 13497 86.47 757 741 147.5
C 1 192 1298978 7773.14 711 716 167.0
C 14 223 138826 826.91 711 716 167.0
C 6 80 75732 449.15 711 716 167.0
D 13 223 266225 1517.66 710 691 175.0
D 13 120 93061 527.94 710 691 175.0
D 5 233 47297 266.38 710 691 175.0

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