ASTROSAT CZTI

Data Quality Report

Orbit 32842

Creation date: 2024-06-27T20:42:35.842243
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/AS1C06_002T09_9000004734_32842cztM0_level2.evt modeM0/AS1C06_002T09_9000004734_32842cztM0_level2_quad_clean.evt
Size (bytes)521,285,76089,997,120
Size497.1 MB 85.8 MB
Events in quadrant A2,607,866595,718
Events in quadrant B3,084,142601,977
Events in quadrant C3,611,329594,463
Events in quadrant D6,111,154548,065

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112983
B0126692
C0144422
D0220362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5505130.236149%
B5505931.689373%
C55051112.016349%
D550562811.407811%

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 7386 5506 6 6 0.08% 0.11%
B 7386 5506 52 52 0.70% 0.94%
C 7386 5506 83 83 1.12% 1.51%
D 7386 5506 577 577 7.81% 10.48%

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 15 174 41126 308.24 660 647 131.3
A 13 254 9942 70.78 660 647 131.3
A 9 143 9298 65.88 660 647 131.3
B 5 172 242770 1966.72 664 649 123.1
B 0 219 53995 433.32 664 649 123.1
B 0 189 28873 229.26 664 649 123.1
C 3 233 767317 5143.57 649 655 149.1
C 1 241 187272 1252.02 649 655 149.1
C 0 10 80461 535.42 649 655 149.1
D 8 195 1238175 7984.37 620 607 155.0
D 12 227 1024256 6604.24 620 607 155.0
D 2 250 401915 2589.1 620 607 155.0

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