ASTROSAT CZTI

Data Quality Report

Orbit 32338

Creation date: 2024-06-27T20:39:02.563079
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/AS1A10_005T01_9000004700_32338cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32338cztM0_level2_quad_clean.evt
Size (bytes)675,685,44093,551,040
Size644.4 MB 89.2 MB
Events in quadrant A3,210,098639,500
Events in quadrant B5,883,335612,276
Events in quadrant C4,862,915570,714
Events in quadrant D6,082,086570,694

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133603
B0220052
C0184922
D0227802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6295370.587768%
B62954847.688642%
C629563010.007943%
D62952664.225576%

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 7585 6296 0 0 0.00% 0.00%
B 7585 6296 215 215 2.83% 3.41%
C 7585 6296 419 419 5.52% 6.66%
D 7585 6296 171 171 2.25% 2.72%

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 22298 132.27 821 809 162.5
A 13 6 16649 97.5 821 809 162.5
A 13 254 12457 71.7 821 809 162.5
B 6 159 1859156 12526.68 798 779 148.4
B 5 172 729471 4911.86 798 779 148.4
B 0 190 67018 446.49 798 779 148.4
C 0 10 1418938 7976.4 764 771 177.8
C 3 233 198839 1114.02 764 771 177.8
C 14 238 123106 688.07 764 771 177.8
D 8 195 1954189 10421.61 783 761 187.4
D 11 164 400998 2135.28 783 761 187.4
D 7 38 221262 1176.38 783 761 187.4

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