ASTROSAT CZTI

Data Quality Report

Orbit 15334

Creation date: 2024-06-27T17:07:02.915720
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/AS1T02_073T01_9000002260_15334cztM0_level2.evt modeM0/AS1T02_073T01_9000002260_15334cztM0_level2_quad_clean.evt
Size (bytes)560,998,08081,728,640
Size535.0 MB 77.9 MB
Events in quadrant A3,030,863508,551
Events in quadrant B3,211,988516,401
Events in quadrant C3,065,818511,916
Events in quadrant D7,228,337472,260

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136052
B0140441
C0136221
D0263281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6681891.332136%
B66811331.990720%
C6681500.748391%
D6681109016.314923%

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 7057 6683 0 0 0.00% 0.00%
B 7057 6682 17 17 0.24% 0.25%
C 7057 6683 0 0 0.00% 0.00%
D 7057 6683 1285 1285 18.21% 19.23%

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 15 239 16779 100.66 780 761 159.1
A 9 143 9471 54.73 780 761 159.1
A 0 226 6633 36.9 780 761 159.1
B 10 16 115709 757.19 780 759 151.8
B 8 3 20681 131.23 780 759 151.8
B 12 111 18753 118.53 780 759 151.8
C 3 233 83723 464.65 764 768 178.5
C 13 61 5398 25.93 764 768 178.5
C 8 222 2899 11.94 764 768 178.5
D 13 122 4414333 24639.11 733 710 179.1
D 2 33 30538 166.52 733 710 179.1
D 2 234 20556 110.79 733 710 179.1

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