ASTROSAT CZTI

Data Quality Report

Orbit 14396

Creation date: 2024-06-27T16:54:33.822735
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_066T04_9000002122_14396cztM0_level2.evt modeM0/AS1G08_066T04_9000002122_14396cztM0_level2_quad_clean.evt
Size (bytes)543,945,600104,184,000
Size518.7 MB 99.4 MB
Events in quadrant A3,579,938676,217
Events in quadrant B3,917,724677,965
Events in quadrant C4,724,832640,419
Events in quadrant D3,746,912643,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154163
B0165402
C0193922
D0162242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7433771.035921%
B74331401.883493%
C7433550.739943%
D7433710.955200%

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 9074 7434 2 2 0.02% 0.03%
B 9074 7435 19 19 0.21% 0.26%
C 9074 7435 0 0 0.00% 0.00%
D 9074 7435 28 28 0.31% 0.38%

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 8 15 65679 355.9 896 876 182.1
A 13 210 17724 92.53 896 876 182.1
A 15 157 14986 77.49 896 876 182.1
B 4 142 178507 1026.74 894 872 173.0
B 0 189 121252 695.8 894 872 173.0
B 0 229 33886 190.82 894 872 173.0
C 3 233 1360154 6789.3 859 862 200.2
C 13 61 6131 26.31 859 862 200.2
C 0 207 4997 20.65 859 862 200.2
D 2 120 274487 1250.15 862 838 218.9
D 12 110 72230 326.15 862 838 218.9
D 10 199 42785 191.63 862 838 218.9

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