ASTROSAT CZTI

Data Quality Report

Orbit 15032

Creation date: 2024-06-27T17:02:48.653113
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/AS1A04_218T03_9000002214_15032cztM0_level2.evt modeM0/AS1A04_218T03_9000002214_15032cztM0_level2_quad_clean.evt
Size (bytes)984,769,920158,348,160
Size939.1 MB 151.0 MB
Events in quadrant A6,975,424988,217
Events in quadrant B8,087,750989,000
Events in quadrant C7,368,269970,742
Events in quadrant D6,508,553944,467

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02680
B02680
C02680
D02680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291064
B0324823
C0299443
D0284853

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130701871.430757%
B130707225.524101%
C130701250.956389%
D130701681.285386%

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 14877 13073 9 9 0.06% 0.07%
B 14877 13071 381 381 2.56% 2.91%
C 14877 13072 0 0 0.00% 0.00%
D 14877 13073 55 55 0.37% 0.42%

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 12 189 301331 940.52 1579 1542 318.7
A 1 162 230350 717.83 1579 1542 318.7
A 1 178 120212 372.3 1579 1542 318.7
B 3 64 1520854 5123.24 1551 1512 296.6
B 10 16 224400 751.58 1551 1512 296.6
B 4 173 82603 273.44 1551 1512 296.6
C 3 233 1376801 3861.47 1531 1536 356.2
C 3 232 12227 30.02 1531 1536 356.2
C 13 61 10997 26.56 1531 1536 356.2
D 2 136 230024 614.01 1535 1489 372.2
D 12 235 105366 279.09 1535 1489 372.2
D 4 239 96650 255.67 1535 1489 372.2

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