ASTROSAT CZTI

Data Quality Report

Orbit 33533

Creation date: 2024-06-27T20:49:50.772413
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/AS1A11_060T01_9000004808_33533cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33533cztM0_level2_quad_clean.evt
Size (bytes)1,339,706,880224,294,400
Size1.2 GB 213.9 MB
Events in quadrant A7,082,3361,473,055
Events in quadrant B10,224,3041,429,067
Events in quadrant C8,511,7821,441,694
Events in quadrant D13,705,3511,375,197

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0313554
B0404023
C0347083
D0513823

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0530
B0530
C0530
D0540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03160
B03160
C03160
D03160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15575190.121990%
B155758735.605136%
C155751641.052970%
D155755933.807384%

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 19843 15578 0 0 0.00% 0.00%
B 19843 15578 605 605 3.05% 3.88%
C 19843 15578 125 125 0.63% 0.80%
D 19843 15577 533 533 2.69% 3.42%

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 13 254 27210 70.0 1824 1791 363.1
A 3 137 18696 46.56 1824 1791 363.1
A 15 169 16638 40.89 1824 1791 363.1
B 5 172 1641659 4764.39 1773 1722 344.2
B 5 255 1104310 3203.27 1773 1722 344.2
B 0 197 94702 270.13 1773 1722 344.2
C 15 214 688426 1692.88 1759 1774 405.6
C 0 10 461751 1134.03 1759 1774 405.6
C 14 254 196828 480.89 1759 1774 405.6
D 8 195 4185631 8931.22 1728 1699 468.5
D 13 249 826659 1761.0 1728 1699 468.5
D 2 250 599567 1276.24 1728 1699 468.5

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