ASTROSAT CZTI

Data Quality Report

Orbit 06194

Creation date: 2024-06-27T15:03:59.103501
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/AS1A02_085T02_9000000808_06194cztM0_level2.evt modeM0/AS1A02_085T02_9000000808_06194cztM0_level2_quad_clean.evt
Size (bytes)481,098,24078,128,640
Size458.8 MB 74.5 MB
Events in quadrant A3,253,636486,631
Events in quadrant B3,730,164485,202
Events in quadrant C3,157,765485,164
Events in quadrant D3,998,228466,534

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139093
B0154542
C0134612
D0163612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6341931.466646%
B63411622.554802%
C6341801.261631%
D63411181.860905%

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 7636 6341 1 1 0.01% 0.02%
B 7636 6341 29 29 0.38% 0.46%
C 7636 6341 0 0 0.00% 0.00%
D 7636 6341 12 12 0.16% 0.19%

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 14 111 55914 336.02 817 801 164.0
A 8 15 44398 265.81 817 801 164.0
A 0 226 8102 44.51 817 801 164.0
B 3 64 283680 1866.75 816 799 151.5
B 0 214 110084 721.18 816 799 151.5
B 0 219 42818 277.29 816 799 151.5
C 1 16 42944 234.38 796 800 179.8
C 9 16 6691 32.76 796 800 179.8
C 13 61 6438 31.36 796 800 179.8
D 2 63 648990 3339.07 798 769 194.1
D 12 110 101204 517.35 798 769 194.1
D 5 97 80281 409.58 798 769 194.1

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