ASTROSAT CZTI

Data Quality Report

Orbit 46681

Creation date: 2024-06-27T23:26:26.122218
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/AS1A13_092T19_9000006252_46681cztM0_level2.fits modeM0/AS1A13_092T19_9000006252_46681cztM0_level2_quad_clean.evt
Size (bytes)526,380,48075,648,960
Size502.0 MB 72.1 MB
Events in quadrant A4,893,320537,748
Events in quadrant B2,478,502559,859
Events in quadrant C2,228,468540,099
Events in quadrant D9,476,150283,967

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01812637
B01099330
C01073114
D031909143

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5261941.786733%
B5258350.665652%
C5267100.189861%
D5256251647.869102%

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 5268 5266 7 7 0.13% 0.13%
B 5268 5264 2 2 0.04% 0.04%
C 5272 5269 1 1 0.02% 0.02%
D 5265 5261 2372 2372 45.05% 45.09%

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 2598433 22205.69 559 550 117.0
A 13 248 53795 455.12 559 550 117.0
A 0 243 28720 240.79 559 550 117.0
B 0 198 80462 713.51 561 543 112.0
B 0 190 52417 463.13 561 543 112.0
B 4 171 41310 363.96 561 543 112.0
C 9 237 24515 182.71 554 557 131.1
C 12 2 13910 101.83 554 557 131.1
C 14 254 12793 93.31 554 557 131.1
D 1 52 6880837 58590.87 464 449 117.4
D 13 249 296020 2516.97 464 449 117.4
D 12 128 161591 1372.23 464 449 117.4

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