ASTROSAT CZTI

Data Quality Report

Orbit 33992

Creation date: 2024-06-27T20:55:08.975035
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_106T03_9000004864_33992cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_33992cztM0_level2_quad_clean.evt
Size (bytes)494,101,44074,551,680
Size471.2 MB 71.1 MB
Events in quadrant A2,644,099476,189
Events in quadrant B3,382,519467,674
Events in quadrant C3,647,898468,491
Events in quadrant D4,900,578444,005

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116053
B0136982
C0143982
D0185032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A573960.104548%
B57391362.369751%
C57391152.003833%
D57391893.293257%

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 7171 5740 1 1 0.01% 0.02%
B 7171 5740 92 92 1.28% 1.60%
C 7171 5740 95 95 1.32% 1.66%
D 7171 5740 179 179 2.50% 3.12%

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 10 83 17400 123.75 670 656 135.3
A 13 6 12170 85.1 670 656 135.3
A 13 254 10505 72.79 670 656 135.3
B 5 172 469013 3684.84 661 644 127.1
B 0 190 89552 699.47 661 644 127.1
B 0 219 43680 338.58 661 644 127.1
C 3 233 396875 2655.7 646 651 149.2
C 15 214 247493 1654.46 646 651 149.2
C 4 254 229219 1531.98 646 651 149.2
D 8 195 1267720 7202.71 641 627 175.9
D 12 6 304304 1726.23 641 627 175.9
D 13 249 300509 1704.66 641 627 175.9

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