ASTROSAT CZTI

Data Quality Report

Orbit 08600

Creation date: 2024-06-27T15:34:49.074616
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/AS1A03_102T01_9000001202_08600cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08600cztM0_level2_quad_clean.evt
Size (bytes)433,088,64090,244,800
Size413.0 MB 86.1 MB
Events in quadrant A2,945,576581,388
Events in quadrant B2,979,495605,781
Events in quadrant C2,700,695589,625
Events in quadrant D4,061,602516,458

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134272
B0131011
C0127481
D0166501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62951181.874504%
B6295731.159651%
C6295370.587768%
D62955739.102462%

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 7085 6295 35 35 0.49% 0.56%
B 7085 6295 7 7 0.10% 0.11%
C 7085 6296 0 0 0.00% 0.00%
D 7085 6296 525 525 7.41% 8.34%

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 13 248 170469 1188.91 699 682 142.8
A 5 16 51960 359.07 699 682 142.8
A 0 128 15453 103.43 699 682 142.8
B 0 214 96238 709.08 712 695 134.7
B 10 16 50929 372.82 712 695 134.7
B 0 219 17895 127.65 712 695 134.7
C 14 67 12150 72.55 686 686 158.0
C 13 61 5204 28.59 686 686 158.0
C 14 64 4862 26.43 686 686 158.0
D 13 105 1381391 8814.09 638 616 156.7
D 1 52 138140 877.88 638 616 156.7
D 10 253 57190 361.14 638 616 156.7

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