ASTROSAT CZTI

Data Quality Report

Orbit 03353

Creation date: 2024-06-27T14:27:56.021129
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_112T01_9000000452_03353cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03353cztM0_level2_quad_clean.evt
Size (bytes)474,393,60074,531,520
Size452.4 MB 71.1 MB
Events in quadrant A3,244,774453,133
Events in quadrant B3,621,541449,641
Events in quadrant C3,278,470446,361
Events in quadrant D3,747,475420,797

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144293
B0153602
C0145382
D0161472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6986901.288291%
B69861131.617521%
C6986721.030633%
D69862583.693100%

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 8851 6988 0 0 0.00% 0.00%
B 8851 6988 15 15 0.17% 0.21%
C 8851 6988 4 4 0.05% 0.06%
D 8851 6988 158 158 1.79% 2.26%

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 15 174 12945 71.41 829 811 169.9
A 11 11 10474 56.87 829 811 169.9
A 0 226 9352 50.27 829 811 169.9
B 15 204 212904 1299.18 839 818 163.2
B 0 229 67156 406.37 839 818 163.2
B 4 81 45575 274.17 839 818 163.2
C 1 16 53071 276.46 808 813 189.0
C 14 223 31720 163.5 808 813 189.0
C 15 208 14689 73.41 808 813 189.0
D 13 223 472559 2460.66 794 773 191.7
D 5 233 115106 596.32 794 773 191.7
D 9 85 98499 509.7 794 773 191.7

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