ASTROSAT CZTI

Data Quality Report

Orbit 43326

Creation date: 2024-06-27T22:50:38.184680
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/AS1T05_158T01_9000005868_43326cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43326cztM0_level2_quad_clean.evt
Size (bytes)1,215,587,520355,276,800
Size1.1 GB 338.8 MB
Events in quadrant A12,156,6052,381,590
Events in quadrant B10,333,3462,434,426
Events in quadrant C10,284,2812,320,162
Events in quadrant D10,542,4282,128,117

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0494525
B0458655
C0442985
D0476295

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04420
B04420
C04420
D04420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A216882681.235706%
B216882491.148100%
C21688160.073774%
D216872601.198875%

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 29241 21693 147 147 0.50% 0.68%
B 29241 21693 180 180 0.62% 0.83%
C 29241 21693 8 8 0.03% 0.04%
D 29240 21691 261 261 0.89% 1.20%

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 1980396 4065.36 2382 2331 486.6
A 15 237 688997 1411.25 2382 2331 486.6
A 12 189 215347 437.79 2382 2331 486.6
B 5 172 772362 1664.45 2372 2303 462.7
B 0 245 97151 205.01 2372 2303 462.7
B 0 189 91495 192.78 2372 2303 462.7
C 15 214 889303 1608.5 2345 2358 551.4
C 15 159 127616 227.16 2345 2358 551.4
C 3 233 84891 149.68 2345 2358 551.4
D 12 6 981707 1706.09 2323 2254 574.1
D 13 249 263754 455.5 2323 2254 574.1
D 2 249 217458 374.86 2323 2254 574.1

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