ASTROSAT CZTI

Data Quality Report

Orbit 43171

Creation date: 2024-06-27T22:48:51.357596
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/AS1C07_001T10_9000005856_43171cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43171cztM0_level2_quad_clean.evt
Size (bytes)341,991,36082,569,600
Size326.1 MB 78.7 MB
Events in quadrant A3,829,376573,456
Events in quadrant B3,745,159531,116
Events in quadrant C2,250,637540,525
Events in quadrant D2,453,356512,368

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281
B0290
C0291
D0291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145662
B0143832
C098614
D0106304

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48871352.762431%
B488758712.011459%
C488650.102333%
D4886340.695866%

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 7041 4888 85 85 1.21% 1.74%
B 7041 4888 503 503 7.14% 10.29%
C 7041 4888 1 1 0.01% 0.02%
D 7041 4888 31 31 0.44% 0.63%

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 15 222 819318 7572.85 535 525 108.1
A 10 83 564565 5216.69 535 525 108.1
A 15 237 293789 2712.34 535 525 108.1
B 0 229 1658461 17473.67 497 484 94.9
B 0 186 59739 624.5 497 484 94.9
B 0 230 52887 552.28 497 484 94.9
C 15 214 209520 1754.66 514 517 119.1
C 14 254 24696 202.99 514 517 119.1
C 15 111 7337 57.26 514 517 119.1
D 1 52 171307 1351.66 524 509 126.4
D 12 0 127822 1007.53 524 509 126.4
D 12 233 56282 441.38 524 509 126.4

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