ASTROSAT CZTI

Data Quality Report

Orbit 13136

Creation date: 2024-06-27T16:36:46.601619
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_053T05_9000001936_13136cztM0_level2.evt modeM0/AS1A04_053T05_9000001936_13136cztM0_level2_quad_clean.evt
Size (bytes)223,220,16038,661,120
Size212.9 MB 36.9 MB
Events in quadrant A1,399,495245,123
Events in quadrant B2,523,375228,119
Events in quadrant C1,288,158244,163
Events in quadrant D1,340,227236,065

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061430
B095200
C060830
D061820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A304040.131579%
B304042013.815789%
C304030.098684%
D304010.032895%

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 3041 3041 0 0 0.00% 0.00%
B 3041 3041 299 299 9.83% 9.83%
C 3041 3041 0 0 0.00% 0.00%
D 3041 3041 1 1 0.03% 0.03%

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 35873 500.95 344 337 70.9
A 1 162 16893 233.39 344 337 70.9
A 15 223 8687 117.71 344 337 70.9
B 4 239 938534 15283.4 312 305 61.4
B 0 85 233637 3800.89 312 305 61.4
B 0 230 47614 770.65 312 305 61.4
C 13 61 2435 27.18 329 330 77.4
C 0 207 2336 25.9 329 330 77.4
C 14 225 1687 17.52 329 330 77.4
D 1 52 48912 603.64 331 321 80.5
D 2 234 12073 145.99 331 321 80.5
D 5 222 6666 78.82 331 321 80.5

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