ASTROSAT CZTI

Data Quality Report

Orbit 13724

Creation date: 2024-06-27T16:45:11.211095
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/AS1G08_039T01_9000002036_13724cztM0_level2.evt modeM0/AS1G08_039T01_9000002036_13724cztM0_level2_quad_clean.evt
Size (bytes)203,235,84044,550,720
Size193.8 MB 42.5 MB
Events in quadrant A1,410,482290,103
Events in quadrant B1,538,922311,723
Events in quadrant C1,456,769280,604
Events in quadrant D1,553,986263,715

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059402
B062031
C059861
D064191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2839973.416696%
B28391043.663262%
C2839842.958788%
D2839913.205354%

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 3640 2841 0 0 0.00% 0.00%
B 3640 2841 2 2 0.05% 0.07%
C 3640 2841 0 0 0.00% 0.00%
D 3640 2841 7 7 0.19% 0.25%

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 1 162 3558 42.2 365 356 75.9
A 0 226 3207 37.57 365 356 75.9
A 12 194 2742 31.44 365 356 75.9
B 10 244 24460 333.1 369 360 72.4
B 3 64 19516 264.77 369 360 72.4
B 4 173 18263 247.45 369 360 72.4
C 3 233 65527 771.75 356 358 84.4
C 13 61 2526 25.67 356 358 84.4
C 14 234 2245 22.35 356 358 84.4
D 5 222 111264 1265.25 354 342 87.7
D 1 52 30857 348.07 354 342 87.7
D 8 195 26909 303.04 354 342 87.7

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