ASTROSAT CZTI

Data Quality Report

Orbit 13027

Creation date: 2024-06-27T16:35:14.724085
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_216T01_9000001916_13027cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13027cztM0_level2_quad_clean.evt
Size (bytes)482,788,80090,924,480
Size460.4 MB 86.7 MB
Events in quadrant A3,137,731606,917
Events in quadrant B3,726,776575,728
Events in quadrant C2,835,602619,447
Events in quadrant D4,526,785545,520

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127702
B0145831
C0119511
D0171321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5804661.137147%
B58045269.062715%
C5804360.620262%
D58045339.183322%

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 7110 5806 15 15 0.21% 0.26%
B 7110 5806 242 242 3.40% 4.17%
C 7110 5806 0 0 0.00% 0.00%
D 7110 5806 398 398 5.60% 6.85%

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 102482 707.39 724 711 143.9
A 15 223 96724 667.37 724 711 143.9
A 15 239 43811 299.58 724 711 143.9
B 4 239 942366 7496.34 680 665 125.6
B 3 64 46161 362.17 680 665 125.6
B 3 209 24289 188.06 680 665 125.6
C 12 4 6581 35.41 724 730 165.2
C 13 61 5331 27.84 724 730 165.2
C 14 234 5054 26.17 724 730 165.2
D 1 52 1527620 9466.62 678 661 161.3
D 8 195 391187 2421.13 678 661 161.3
D 14 34 22778 137.12 678 661 161.3

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