ASTROSAT CZTI

Data Quality Report

Orbit 43215

Creation date: 2024-06-27T22:49:24.281874
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/AS1A09_036T17_9000005858_43215cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43215cztM0_level2_quad_clean.evt
Size (bytes)336,715,20085,599,360
Size321.1 MB 81.6 MB
Events in quadrant A3,692,668560,074
Events in quadrant B2,630,783589,847
Events in quadrant C2,417,364568,351
Events in quadrant D3,321,959512,489

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01429623
B0110515
C0104122
D0133665

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51502043.961165%
B5152410.795807%
C515450.097012%
D51511723.339157%

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 7246 5154 143 143 1.97% 2.77%
B 7246 5154 20 20 0.28% 0.39%
C 7246 5155 1 1 0.01% 0.02%
D 7246 5155 147 147 2.03% 2.85%

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 10 83 600262 5183.41 560 549 115.7
A 15 237 548886 4739.36 560 549 115.7
A 13 248 159846 1376.83 560 549 115.7
B 0 189 184001 1690.16 561 546 108.5
B 5 172 115366 1057.83 561 546 108.5
B 0 230 77869 712.37 561 546 108.5
C 15 214 219937 1668.38 554 560 131.5
C 14 254 30696 229.19 554 560 131.5
C 3 233 8028 56.79 554 560 131.5
D 1 52 743771 5448.23 551 535 136.4
D 2 249 185451 1355.51 551 535 136.4
D 13 249 94450 688.44 551 535 136.4

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