ASTROSAT CZTI

Data Quality Report

Orbit 33945

Creation date: 2024-06-27T20:54:24.511364
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/AS1A11_046T03_9000004848_33945cztM0_level2.evt modeM0/AS1A11_046T03_9000004848_33945cztM0_level2_quad_clean.evt
Size (bytes)355,164,48050,290,560
Size338.7 MB 48.0 MB
Events in quadrant A2,056,634321,477
Events in quadrant B2,680,513314,296
Events in quadrant C2,486,024311,846
Events in quadrant D3,256,949288,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083191
B0103321
C098521
D0123291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A405950.123183%
B40591563.843311%
C4059360.886918%
D40592315.691057%

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 4059 4059 0 0 0.00% 0.00%
B 4059 4059 104 104 2.56% 2.56%
C 4059 4059 27 27 0.67% 0.67%
D 4059 4059 191 191 4.71% 4.71%

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 7682 68.06 528 519 105.2
A 13 6 7469 66.04 528 519 105.2
A 13 254 6220 54.17 528 519 105.2
B 5 172 495278 5195.98 509 498 95.2
B 0 190 62684 653.05 509 498 95.2
B 15 35 53946 561.29 509 498 95.2
C 15 214 176170 1533.27 503 508 114.6
C 3 233 172528 1501.49 503 508 114.6
C 0 10 142574 1240.03 503 508 114.6
D 12 6 430079 3250.73 500 488 132.2
D 8 195 324938 2455.13 500 488 132.2
D 13 249 250966 1895.38 500 488 132.2

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