ASTROSAT CZTI

Data Quality Report

Orbit 08509

Creation date: 2024-06-27T15:33:39.369843
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/AS1G07_060T01_9000001200_08509cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08509cztM0_level2_quad_clean.evt
Size (bytes)419,158,08089,153,280
Size399.7 MB 85.0 MB
Events in quadrant A3,076,841567,815
Events in quadrant B3,253,984580,416
Events in quadrant C2,890,679567,375
Events in quadrant D3,042,138542,552

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133995
B0138415
C0129904
D0136732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6324661.043643%
B6324691.091082%
C6324230.363694%
D6325200.316206%

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 8715 6327 24 24 0.28% 0.38%
B 8715 6327 21 21 0.24% 0.33%
C 8715 6327 0 0 0.00% 0.00%
D 8715 6327 1 1 0.01% 0.02%

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 5 16 155833 1000.63 757 741 155.0
A 0 226 6966 40.16 757 741 155.0
A 12 194 6511 37.23 757 741 155.0
B 15 255 85911 589.64 765 749 144.4
B 0 214 73628 504.59 765 749 144.4
B 10 252 43099 293.22 765 749 144.4
C 13 61 5499 27.54 740 744 172.7
C 8 222 2973 12.91 740 744 172.7
C 12 4 1790 6.06 740 744 172.7
D 13 105 129334 727.95 726 709 176.7
D 2 136 74694 418.72 726 709 176.7
D 13 169 29064 160.47 726 709 176.7

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