ASTROSAT CZTI

Data Quality Report

Orbit 08028

Creation date: 2024-06-27T15:27:04.267217
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_080T01_9000001104_08028cztM0_level2.evt modeM0/AS1A02_080T01_9000001104_08028cztM0_level2_quad_clean.evt
Size (bytes)498,968,64067,872,960
Size475.9 MB 64.7 MB
Events in quadrant A3,103,758409,787
Events in quadrant B3,711,438406,709
Events in quadrant C2,970,761402,329
Events in quadrant D4,878,177376,652

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136142
B0152761
C0134341
D0189151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6587480.728708%
B65872213.355093%
C6587310.470624%
D65873475.267952%

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 7607 6588 2 2 0.03% 0.03%
B 7607 6588 122 122 1.60% 1.85%
C 7607 6588 0 0 0.00% 0.00%
D 7607 6588 272 272 3.58% 4.13%

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 4 2 67865 422.93 781 764 158.7
A 13 248 8711 50.09 781 764 158.7
A 0 226 7345 41.48 781 764 158.7
B 4 239 422781 2882.28 775 757 146.4
B 11 51 90587 613.51 775 757 146.4
B 10 16 63214 426.56 775 757 146.4
C 1 16 19196 105.43 755 757 174.9
C 13 61 5749 28.54 755 757 174.9
C 12 4 3905 18.0 755 757 174.9
D 2 250 1374464 6972.7 738 719 197.0
D 13 169 328815 1665.31 738 719 197.0
D 1 52 208390 1054.07 738 719 197.0

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