ASTROSAT CZTI

Data Quality Report

Orbit 06262

Creation date: 2024-06-27T15:05:07.643078
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/AS1G06_168T04_9000000820_06262cztM0_level2.evt modeM0/AS1G06_168T04_9000000820_06262cztM0_level2_quad_clean.evt
Size (bytes)489,816,00075,127,680
Size467.1 MB 71.6 MB
Events in quadrant A3,025,529459,688
Events in quadrant B3,410,568461,096
Events in quadrant C2,978,753460,409
Events in quadrant D4,959,890422,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137643
B0146952
C0137332
D0194832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6763610.901967%
B67631402.070087%
C6763540.798462%
D67636239.211888%

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 8539 6763 0 0 0.00% 0.00%
B 8539 6763 58 58 0.68% 0.86%
C 8539 6763 0 0 0.00% 0.00%
D 8539 6763 556 556 6.51% 8.22%

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 12790 75.97 775 757 158.4
A 15 174 10568 61.94 775 757 158.4
A 0 226 7369 41.75 775 757 158.4
B 3 64 203164 1366.37 777 758 148.1
B 0 219 108619 728.13 777 758 148.1
B 11 51 45179 299.87 777 758 148.1
C 13 61 5838 28.77 761 763 176.4
C 14 67 4275 19.91 761 763 176.4
C 8 222 2980 12.57 761 763 176.4
D 13 105 1600332 8933.16 728 703 179.1
D 12 220 370078 2062.78 728 703 179.1
D 12 110 84683 468.99 728 703 179.1

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